WO1994014102A1

WO1994014102A1 - Holder for photographic, reprographic and cinematographic apparatus

Info

Publication number: WO1994014102A1
Application number: PCT/DE1993/000869
Authority: WO
Inventors: Ramòn WINK; Michael Parbel
Original assignee: Sinar Ag
Priority date: 1992-09-15
Filing date: 1993-09-15
Publication date: 1994-06-23

Abstract

A holder is disclosed for photographic, reprographic and cinematographic apparatus, in particular a ground glass disk photographic camera designed as a kind of optical bench. In order to align such an apparatus, the latter must be able to swivel around an axis parallel to the orientation of the camera as well, in particular the longitudinal axis of the supporting rail which forms the base of the apparatus in the holder. Known holders do not allow the camera to be swivelled in an accurately controllable manner and involve the risk of an uncontrollable sideways swivelling of the camera. In order to allow the camera to be swivelled in an accurately controllable manner, the guiding body which receives the supporting rail in the holder is adjustable through a gear by means of an actuating handle provided on the holder.

Description

DESCRIPTION

Holders for photographic, reprographic and cinematographic equipment

State of the art

The present invention relates to a holder for photographic, reprographic and cinematographic devices with a rail forming the device base, in particular for photographic matte disk cameras constructed in the manner of an optical bench, the device base of which is provided by a ^* support rail which simultaneously represents the optical bench or by a this support rail adjoining ¹ , separate support rail are formed, according to the preamble of claim 1. Such a holder has been on the market for several years and is generally known to experts (SINAR). Cameras constructed in the manner of an optical bench - so-called specialist cameras - have a support rail which forms the camera base, carries the lens and image standards and thus takes over the function of the optical bench. di e - in most cases - directly, occasionally but also indirectly via an additional support rail to a holder of the type mentioned, which in turn is attached to a tripod or a similar frame. The carrier rails of the known cameras of this type have more or less different cross-sectional shapes. Carrier rails with an essentially round cross-section are known which, when fitted or embedded, carry a slow-running, spring-like part or a toothed rack for setting the standards for the lens and focusing screen provided with corresponding gear wheels (pinions) (lens or image carrier). . Carrier rails are also known which have an approximately rectangular cross section. Finally, there are carrier rails with a complicated cross-sectional profile, which, moreover, are also sometimes made in two parts with carrier rail halves that can be adjusted in the longitudinal direction. - If, in addition to the support rails mentioned, a separate support rail that receives the support rail is used, this has a plate-like shape in known devices and is attached to the tripod in a corresponding manner. However, such a support rail, which is provided separately for the carrier rail, can of course also have a more compact cross-sectional shape than that of a plate-like body and can in any case have a cross section which corresponds to the clear cross section of a guide body of the holder, which is therefore adapted to this. For the further description of the invention and the relevant prior art, for the sake of simplicity, the following is summarized (only) as a carrier rail.

Cameras of the aforementioned type are used practically exclusively because of their high weight - especially in the case of studio recordings - in connection with a tripod. Before the actual focusing of the image on the focusing screen is carried out for the cameras in question, the camera must be aligned in accordance with the desired image detail. In order to align the camera to the object to be photographed, to set a preferred "recording angle" and to find the desired image section, the camera must start from a suitably chosen tripod position and position of a camera support plate attached to the tripod or a ball joint head attached to the tripod or the like . in space, not only - often by means of means provided on the tripod - are shifted several times in the direction of the longitudinal extension of their support rail, but moreover are also pivoted out of the normal position with the support rail underneath about the longitudinal axis of the support rail or an axis parallel to it by a certain angle of rotation, to get the desired image section.

When carrying out this work, the situation is aggravated by the fact that the camera often also has to be tilted by a more or less large angle with respect to the horizontal - usually with the lens pointing downwards, in some cases up to the range of approx. 90 degree inclination to the horizontal.

Using the known holder, a clamping connection, similar to a clamp, and including the carrier rail of the camera itself and the guide body accommodating the carrier rail, must be released for the activities described above which serve to align the camera. This is done by moving back a linearly and transversely to the longitudinal axis of the carrier rail and guide body against this movable pin by means of an actuating handle (rotary handle) mounted on the holder via an adjusting screw located within the actuating handle. The guide body of the holder - in the case of this known holder formed in an annular shape - is the rack mentioned above in the region of one respectively . the tongue-like part receiving groove - slightly sloping to the longitudinal axis of the guide body - slotted and consists of an elastically resilient plastic material with a relatively smooth inner and outer surface of the guide body.

In the holder, which is open towards the top, this guide body is supported on lateral boundaries of the holder against axial displacement. After a certain loosening of the clamp connection, the guide body - and accordingly the support rail of the camera - can be turned or rotated in the holder. be pivoted, with all the known problems that result from this way of preparing and performing an adjustment of the image section.

After the clamping connection has been loosened further, that is to say the said clamping pin has been moved back sufficiently far, the guide body, optionally with the support rail of the camera encompassing it, can be removed from the holder in a direction transverse to the longitudinal axis of the support rail. A counterpart pivotably mounted on the side of the guide body opposite the clamping pin under spring tension in the holder allows rotation or pivoting of the guide body about its longitudinal axis in the holder within a certain adjustment range of the clamping pin, and on the other hand is to slide out or otherwise slide out if the clamping pin is retracted further Prevent the carrier rail with guide body from falling out of the upwardly open holder, which is approximately U-shaped in cross section.

The structural design and the resulting functioning of the known holder inevitably results in the considerable disadvantage that, as a result of the loosening of the described clamping connection, not only the locking of the carrier rail or. the additional support rail used with certain cameras - against rotation or. Pivoting movements in the holder is lifted, but that at the same time and I also avoid the locking of the carrier rail against linear movements in the direction of the longitudinal expansion of the carrier rail. At least in the case of an inclined camera, this results in the danger that the camera slides down with the carrier rail or even falls out of the holder together with the guide body. In any case, after loosening the clamp connection of this holder for the purpose of intentionally pivoting the camera, a predetermined position of the camera in the direction of the object camera - that is, in the direction of the longitudinal extension of the carrier rail - is questioned again.

A particular problem is that after loosening the clamp connection mentioned, the camera is no longer held by elements of the holder, neither against pivoting nor against (linear) displacement. This means that the mostly relatively heavy and in any case expensive camera already while loosening the clamp connection - by actuating the mentioned rotary handle with one hand - with the other hand in a rather provisional and questionable way on the image standard or in an otherwise accessible location Place must be held. These manipulations can only be carried out with the help of another person in some shooting cases - especially for macro shots with inevitably very large image widths and correspondingly long extracts of the bellows. For a pivoting of the camera to be carried out after loosening the clamping connection and - as far as this is possible at all under the conditions described - the assistance of a second person is often necessary.

These activities are particularly difficult and sometimes dangerous when taking pictures from a high position using ladders.

Regardless of a possible risk to the

When using the known holder, the camera operator has the possibility that the camera will be released after the conscious clamp connection swings away to one side in an uncontrolled manner, with the result that the entire camera or essential components are destroyed. There have been such cases in practice.

A pivoting of the camera around the longitudinal axis of the carrier rail or. around an axis parallel to this, a movement comprising both the lens standard and the image standard, in terms of its effect - i.e. in relation to the focusing - represents the movement similar to that known in particular from some cameras with so-called basic pivoting, the complexity of which with regard to the subsequent movement readjustment of the image sharpness to be carried out is in most cases even greater with a carrier rail inclined with respect to the horizontal than is already the case with a horizontally oriented carrier rail, and its effect on the focusing only with even with long professional experience considerable time can be compensated. This explains why intended swiveling of the camera around an axis parallel to the carrier rail should only be able to be carried out to a precisely controlled extent and that unintentional swiveling movements - however small - should absolutely be prevented. Exactly this is not possible when using the known holder.

task

In view of the, in daily practice - especially when taking pictures with an inclined camera and relatively short object widths and accordingly relatively large image widths - corrective re-alignment, which is necessary several times, in particular swiveling the camera around the longitudinal axis of the carrier rail or Support rail or an axis parallel to this, the aim pursued with the present invention is to overcome the difficulties and risks associated with the known holder in connection with the adjustment of the appropriate image detail and to fix the sharp image, at least significantly reduce it, and for aligning the camera and the associated activities such as. B. Roughly adjusting the sharpness of the image and influencing the perspective by swiveling and shifting the image or. of the objective carrier to shorten the time required significantly. Weiterhi n should be achieved that when pivoting the support rail - or. Support rail - the camera in the holder the camera does not move uncontrollably in the direction of the longitudinal extension of the support rail in the holder.

In addition, the aim is to move the camera around the longitudinal axis of the carrier rail and / or in a precisely controllable extent, even in the smallest angle of rotation. to be able to swivel an axis parallel to this or - with the appropriate attachment of the lens and image standard to the support rail - even be able to turn it completely.

The aim pursued by the invention relates - at least with regard to important sub-areas of activity - analogously to reprographic devices (repro cameras and magnification devices) and cinematographic cameras which are constructed similarly to the cameras described above.

Finally, the aim pursued by the invention basically also relates to cameras that are not constructed in the manner of an optical bench, for. B. So-called medium format cameras with or without the possibility of adjusting the lens and / or image carrier, and for example in connection with a bellows or bellows device.

solution

Starting from the holder described at the outset, the above-described objective is achieved according to the invention by the features as set out in the characterizing part of claim 1 are specified.

Further advantageous embodiments of the holder according to the invention are given in subclaims 2 to 33 a.

Benefits

The holder designed in accordance with the invention enables the camera to be swiveled around the longitudinal axis of the support rail easily and effortlessly by a single operator? (or support rail) or. an axis parallel to this to a precisely controllable extent, even in the area of the smallest angle of rotation, of a camera constructed in the manner of an optical bench or of a similarly constructed reprographic or cinematographic device. An unintentional longitudinal shift of the camera or. the device in the holder is fundamentally excluded.

The locking to be carried out after the camera has been swiveled or rotated - if necessary in conjunction with the additional inhibition against rotation or. Swiveling movements - ensures that the carrier rail is locked in the holder even when the camera is in an extreme inclined position (swiveling by 90 °) and the (adhesive) frictional forces acting on the locking means are accordingly greatest.

In view of the reducing gear provided in the holder according to the invention in the drive train from the actuating means to the guide body, it is also easy to carry out a pivoting of the camera by motor. Such a solution, in which the actuating means for pivoting or rotating the guide body and thus the camera is formed by a motor, which is expediently remotely controllable via cable, is in particular; then advantageous when working with long bellows extensions must be (macro shooting), in which the distance between the focusing screen and ^* Ha lt it is large r-möglicherwei e 'about the same size or even when the arm-length ^* ^* the Bedionungsporson.

With the holder according to the invention, for the first time, the possibility is practically opened up of a so-called wobble movement that occurs when certain cameras are used when the lens or image carrier is adjusted about both the "horizontal" and the "vertical" pivot axis, at least with regard to its effect on the image sharp - making de by appropriately pivoting ^* r camera or the apparatus to DIE longitudinal axis ¹ of the supporting rail or an axis parallel thereto reversed. In this case, however, the image carrier will then usually have to be pivoted in the opposite direction on the support rail in order to be able to obtain the desired image section again, at least approximately.

The gear transmission proposed according to claim 2 has a fundamentally also usable

Friction wheel transmissions have the advantage of greater load capacity and the possibility of designing the transmissions to be self-locking in the opposite direction to the intended power flow direction.

In order to be able to adapt the guide body of the holder relatively easily, with little expenditure of time and inexpensively to the cross section of a given support rail, the measures described in claim 3 are proposed.

Possible configurations of the guide body are specified in claims 4 to 8; Here, the slotted, possibly spiral-shaped slits are particularly suitable for being able to lie with their inner lateral surface on the opposite wall area of the support rail.

In the case of the use of the proposal according to claim 9, separate ¹ second _' arrest> rungsmι tte> l can be dispensed with. if the special application allows you ^* s.

Claim 10 calls a preferred solution for the Getπebemitte'l, which offers the advantage of a high reduction, self-locking effect (as mentioned above) and practical arrangement of a manually operated actuating handle on the housing. - Such an actuation handle is advantageously designed according to claim 11.

The solution proposed in claim 12 has the advantage of simplicity, operational reliability and inexpensive manufacture.

A possibility of securing the support rail in the guide body against axial — that is to say linear — movements relative to the latter is specified in claim 13. A functionally similar solution proposes claim 14 for locking the guide body relative to the housing of the holder.

In order to protect the outer mantle surface of the Fuhrungskorpers, claim 15 is proposed a Druckkorper for use between the housing and the outer lateral surface of the Fuhrungskorpers according, which can be r configured in accordance with the claims 16 to 18 wide _'and stored in a special way or disposed.

An embodiment of the holder according to claim 19 enables the user to replace the guiding body or the inner and / or outer guiding body part with a part that matches another carrier rail.

The movable parts of the holder are suitably mounted in roller bearings or slide bearings in the housing ^{1 in} accordance with the proposals according to claims 20 and 21.

Training de _'s holder according to claim 22 provides the possibility of mounting de ^* s Halteτs a usual "- Tripod thread on a tripod. Instead - or additional - can in the base plate, expediently in areas protruding from the rest of the housing body, bores for fastening the holder to a stand plate or the like. be provided by means of threaded bolts.

The mentioned base plate can form a coherent unit with the housing of the holder, or else can be designed as a separate base plate according to claim 23 which can be removed from the rest of the housing.

The solution mentioned in claim 24 enables an exchange of the tripod screw.

A special embodiment of the holder according to the invention, based on the construction of the known holder, is specified in claim 25. Such an embodiment of the holder according to the invention not only offers the possibility of pivoting the carrier rail held in the guide body with a camera in a controlled manner, but also allows - with the precautions required here - a relatively quick removal of the camera with carrier rail from the holder.

For the appropriate storage of a tool required for the use of the holder according to the invention (Allen key) in the vicinity of the holder, this is further developed according to claims 26 and 27.

With the locking means according to claim 28, it is achieved that after the first locking means have been released, the

Carrier rail can not yet slide freely through the Fuhrungskorper, but also that these locking means must also be operated. Accidental sliding of the camera in the guide - especially in the case of an inclined camera - is practically impossible.

The other special _' embodiment of the invention _' Holder according to claim 29 allows a pivoting of the camera about its optical 'axis' or in parallel to it', closely adjacent axis, so that no lateral displacement occurs despite pivoting the camera

The option mentioned in claim 30 for the configuration of the first and also the second locking means offers contact forces distributed uniformly over the circumference of the opposing components and, in particular, defined circumferential contact of the components concerned with one another.

To increase the static friction between the opposing components, the solution according to claim 31 is also proposed.

Possible variants for the actuating means are mentioned in claims 32 and 33.

Explanation of the invention using exemplary embodiments

The invention is explained below using several exemplary embodiments with reference to FIGS. 1 to 23.

Show it

1 shows an embodiment of the holder according to the invention in the front view in section according to section line I-I in Fig. 2,

1 in side view in section along section line II-II in Fig. 1,

Fig. 3 the stored in the holder according to FIGS. 1 and 2

Guide body for a 'mounting rail of a camera in front view. Fig. 4 the Fuhrungskorper according to Fig. 3 in dr side view.

5 is the front view of the housing cover for the guide body covering the housing cover of the housing of the holder according to FIGS. 1 and 2,

6 the housing cover according to FIG. 5 in a side view in section according to section line VI-VI in FIG. 5,

7 is a front view of one of the two housing covers covering the housing space for the adjusting screw of the housing of the holder according to FIGS. 1 and 2,

8 is a side view in section along the section line 'VIII-VI 11 in Fig. 7.

Fig. 9 the other of the two covering the housing space for the adjusting screw housing cover

Housing of the holder according to FIGS. 1 and 2 in the front view,

10 shows the housing base according to FIG. 9 in a side view in section according to section line X-X in FIG. 9.

11 the adjusting wheel provided as an actuating means

1 and 2 in the side view,

Fig. 12, the bottom plate of the holder according to FIGS. 1 and 2 in supervision.

13 shows the bottom plate according to FIG. 12 in a side view in section according to section line XIII - III in FIG. 12.

Fig. 14 in the bottom plate 'according to Figs. 12 and 13 Stati vgowindbuchse' in side view. 15 shows another embodiment of the holder according to the invention in the front view in section according to section line XV-XV in FIG. 16,

Fig. 16 the holder of FIG. 15 in side view in

Section according to section line XVI-XVI in Fig. 15,

17 is a front view of the guide body for a carrier rail of a camera mounted in the holder according to FIGS. 15 and 16,

18 is a side view of the guide body according to FIG. 17,

19 shows a further embodiment of the holder according to the invention in a front view in section according to section line XIX-XIX in FIG. 20,

20 shows the holder according to FIG. 19 in a side view in section according to section line XX-XX in FIG. 19,

Fig. 21 the stored in the holder of FIGS. 19 and 20

Front view of guide body for a mounting rail of a camera,

22 the guide body according to FIG. 21 in side view, and

Fig. 23 shows a special, based on the known holder embodiment of the holder according to the invention in a schematic representation in front view.

1 and 2 show a holder 1 according to the invention, which essentially consists of a housing 2 with a guide body 3 rotatably mounted therein as a worm wheel 4 and adjusting worm 5, and a gear wheel 6 Actuating handle 'and first and second tone, each as a clamping screw 7 or. 8 Executed locking means exists. At the foot of the housing 2 is a äuse on the housing by means not dargestel lter Schraubenbolze'n fixed bottom plate 9 vorgese n _{_'he'.} in the center ei ne tripod socket 10 is arranged. The tripod socket 10 is inserted into the base plate 9 from the side facing the housing and is locked in the base plate by means of a screw.

In the lower area of the housing 2 there is the mentioned adjusting screw 5, which has a roller bearing 12 and a bearing at its ends. 13 is rotatably mounted. The space occupied by the adjusting screw 5 with roller bearings 12, 13 in the housing 2 is on the relevant, opposite housing sides through the housing cover 14 and. 15 completed.

The worm wheel 4 is located above the adjusting screw 5 in the housing 2; the worm wheel 4 is machined on the guide body 3 lying concentrically to this and is therefore made in one piece with it. The Fuhrungskorper 3 with

Worm gear 4 is on roller bearings 16 and. 17 rotatably mounted about the longitudinal axis 18 of the guide body 3 in the housing 2.

The mentioned clamping screws 7 for locking the support rail 20 of a camera (not shown further) relative to the guide body 3 are located in threaded bores 19 of the guide body 3. The clamping screws 7 are in the position shown in FIG. 2 shown position of the guide body 3 relative to the housing 2 accessible through the bores 24 provided in the housing 2 in a side wall for the use of an actuating tool.

A recessed into the support rail 20 _'of the otherwise zyl indrischen lateral surface of the supporting rail protruding' rack 21 results in one in the region of the inner. Likewise, the otherwise cylindrical cylindrical surface provided groove 22 of the guide body 3. On one side of the housing 2 there is the mentioned clamping screw 8 for locking the guide body 3 against rotation or in a threaded bore 23. Pivoting movements in the housing 3. The clamping screw 8 provided with an adjusting handle 25 can be adjusted so far in the direction of the guide body 3 that the guide body 3 against rotation or. Pivotal movements about the axis 18 is held immovably in the housing 2.

With a correspondingly loosened clamping screw 8, the guide body 3 can be pivoted together with the carrier rail 20 of the camera secured therein against linear displacement by means of the clamping screws 7 by correspondingly turning the adjusting wheel by even the smallest angle of rotation to a precisely controllable extent. The self-locking effect of this consisting of adjusting worm 5 and worm wheel 4 and otherwise relatively strongly reducing gear means furthermore that even when you let go of the hand-operated control wheel 6 and still loosened

Clamping screw 8, a camera that may already be tilted more or less to the side - cannot be unintentionally pivoted beyond it by itself.

In the event that a motorized drive is required for pivoting the guide body, this can - appropriately designed as a remotely controllable electric motor with a step-down gear - be coupled instead of the adjusting wheel to the stub shaft designated mi t 26 of the adjusting worm 5.

To remove the guide body 3 from the housing 2, only the housing cover designated 27 needs to be removed from the housing 2 by loosening fastening screws (not shown in more detail), after which the guide body 3, for example, against one with a different cross-section (corresponding to the cross-section of another support rail) can be exchanged. For this purpose it is but also I like, how? already mentioned above the guide body in two parts, the one carrying the worm wheel outer guide body part l remains in the holder or. continue to use ¹ ! and there is other, inner guide body part by means of a suitable connection mechanism with the outer guide body part in a rotationally fixed manner and axially fixedly connectable or. is removable from this.

In the embodiment of the invention according to FIGS. 15 to 18 is - apart from a somewhat different positioning of the provided for the passage of a tool to the clamping screws 7, here with 28 holes - between the clamping screw 8 provided for locking the guide body 3 in the housing 2 and the opposite area of the lateral surface of the Guide body 3, a separate pressure piece 29 is arranged. The pressure piece 29 runs in a not-specified groove running around the guide body and is held in the intended position by means of a locking screw 30. On the side facing the guide body 3, the pressure piece 29 carries a lining 31 made of a material which causes a high coefficient of friction, for example material such as is used for brake linings.

In the case of the embodiment of the invention according to FIGS. 19 to 22 is - unlike the two previously described embodiments of the invention - a feather-like intermediate piece 32 is arranged in the region of the groove 22 of the guide body 3, the part projecting into the remaining clear cross section of the guide body 3 is essentially the cross-sectional profile of another on the

Carrier rail on the market in the area of the rack guide (or guide with comparable function), which is recessed there from the otherwise cylindrical surface of the carrier rail and is thus lowered.

In the embodiment of the invention according to FIG. 23 after all, is it a design that concerns some details? constructive features of the known holder mentioned at the beginning of the description takes over. Different from the known holder are the features of the two housing parts? divided housing with the drive means located between the transmission means in the sense of the invention.

Fig. 23 shows a holder 33, which consists of a housing 34 with a first housing part 35 and a second housing part 36, as well as a housing 35 against rotation or rotation. Swivel and guide body 37 that can be secured against axial movement for receiving? a carrier rail 38.

A locking means already known from the known holder, namely a dowel pin 39 with an actuating handle 40, is used to lock the support rail 38 together with the guide body 37 provided with a slot 41 for the purpose of a spring action.

The housing part 35 has, on its area facing the housing part 36, a ring gear segment 42 which meshes with an adjusting spindle (worm) 43 rotatably mounted in the housing part 36. For a free mobility of the toothed segment 42, a corresponding groove 44 in the housing part 36, which otherwise lies tightly against the housing part 35, can be readily understood based on the illustration in the drawing that by actuating the actuating handle 45 fastened on the adjusting spindle 43, the housing part 35 controlled rotated relative to the housing part 36. can be pivoted.

For connection with a camera platen or the like. serves a tripod threaded bore 46 provided in the housing part 36 in the base area. Otherwise ball bearings (not specified in more detail) can be provided for the mounting of the rotatable elements of this holder. Reference list

Holder housing guide body (for carrier rail) worm wheel (on the guide body) adjusting worm (for swiveling) adjusting wheel (for adjusting worm) clamping screw (for locking the carrier rail) clamping screw (for locking the guide body) base plate tripod socket screw screw roller bearing roller bearing housing cover housing cover roller bearing roller bearing longitudinal axis threaded rod hole (on the carrier rail) Groove (for receiving the rack or the like.) Threaded holes Bores Adjusting handle Stub shaft Housing cover Bores Pressure piece (for exerting the locking force) Locking screw (for holding the pressure piece) Pad (for increasing the static friction) Intermediate piece (for carrier rails with a groove) Bracket Housing Housing part (first) Housing part (second) Guide body (in first housing part) support rail (in the guide body) dowel pin (on the first housing part) actuation handle? Slot (in the guide body) spider segment (on the first housing part) adjusting spindle groove actuating handle tripod threaded hole

Claims

EXPECTATIONS

Holder for photographic, reprographic and cinematographic devices with a rail forming the device base, in particular for photographic focusing screen cameras constructed in the manner of an optical bench, the device base of which is provided by a support rail which simultaneously represents the optical bench or by a support rail attached to the latter

Separate support rail is formed connecting carrier rail,

a) with one provided for receiving the rail. at least substantially closed annular

Guide body, the opening cross section of which is adapted to the cross section of the rail,

b) with a housing which rotates or swivels the guide body about an axis parallel to the direction of the longitudinal expansion of the rail and is secured against axial movement,

c) with locking means for locking the rail in the holder against rotating or swiveling movements about the said axis and against linear movements in the direction of the longitudinal extension of the rail, and

d) with fastening means provided on the holder for fastening the holder to a stationary frame. For example, on a camera support plate attached to a tripod, a ball joint head or the like. marked by

e) Actuating means for rotating or pivoting the guide body in the housing, around the said one parallel to the direction of the longitudinal expansion of the rail

Axis,

f) in the drive train between the actuating means and the reducing gear means arranged in the housing in the housing,

g) first locking means for locking the rail in the guide body against linear movements in the direction of the longitudinal extension of the rail, and

h) second locking means for locking the guide body against rotating or pivoting movements in the housing.

2. Holder according to claim 1, characterized in that the gear means are designed as a gear transmission.

3. Holder according to claim 1, characterized in that the guide body is made in two parts with an outer, with the gear means in drive connection guide body part and an insertable in the outer guide body part and with this rotatably and axially immovable, with locking means for locking the rail intended body part inner Führungs¬ whose opening cross-section is adapted to the cross section of the rail. ^"

4. Holder according to claim 1 or 3. characterized thereby. that the guide body or the one? and / or others

Guide body part tubular with a closed cross-section of the tube wall or tube walls are trained.

5. Holder according to claim 1 or 3, thereby ge'kennze'ichnot. that the Fuhrungskorper or one ^» and / or other 'Fuhrungskorperte'il are tubular with an open cross-section of the tube wall or tube walls, in particular slotted.

Holder according to claim 5, characterized gekennze'ichne't that the guide body or the ¹ and / or other ¹ guide body part are slotted parallel to the longitudinal axis of the> guide body or the relevant guide body part.

7. Holder according to claim 5, characterized in that the Fuhrungskorper or one and / or other Fuhrungskorperteil are slanted obliquely to the longitudinal axis ds Fuhrungskorpers or the relevant Fuhrungskorperteile.

8. Holder according to claim 5, characterized in that de'r Fuhrungskorper or one and / or other Fuhrungskorperteil based on the 'longitudinal axis dos Fuhrungskorpers or the relevant Fuhrungskorperteile are slit helically.

9. Holder according to claim 1, characterized in that the second Arretιerungsmιtte'1 are formed by the 'configuration of the transmission means as a self-locking transmission.

10. Holder according to claim 2. thereby ge'kennzeichne't. that the Fuhrungskorpe'r or the outer 'Fuhrungskorperte'il with a worm wheel dre _' hfost ve-rbunde-n. one 'im Ge: housing _' mounted ¹ adjustment screw- is assigned.

11. Haitor according to claim 10, characterized thereby? . that the adjusting screw is assigned a manually operable setting wheel.

12. Holder according to claim 10, characterized in that the worm wheel is formed by a region of the guide body or the outer guide part of the guide body.

13. Holder according to claim 1, characterized in that the first locking means are formed by an ode; r a plurality of clamping screws, which can be moved approximately transversely to the longitudinal direction of the rail against it in threaded holes located in the guide body or inner guide body part are stored.

14. Holder according to claim 1, characterized in that the second locking means by a? located in a threaded bore of the housing against the outer surface? adjustable clamping screw of the guide body or the outer guide body part are formed.

15. Holder according to claim 14, characterized in that a pressure body is provided between the outer circumferential surface of the guide body or the outer guide body part and the clamping screw.

16. Holder according to claim 15, characterized in that the pressure body on the guide body or on the outer guide body; i 1; swept; n side; a; n Be'lag from a material causing a high coefficient of friction between the pressure body on the one hand and the guide body or outer guide body part on the other hand, for example material used for brake linings of motor vehicles.

17. Holder according to claim 15, characterized in that the pressure body is formed like a ring sector and leads in an annular groove of the guide body or body part and / or an annular groove of the housing.

18. Holder according to claim 15, characterized in that the pressure body is held in a predetermined position via a retaining screw provided in the housing.

19. Holder according to claim 1, characterized in that the guide body or the guide body or parts are removably mounted in the housing.

20. Holder according to claim 1, characterized in that the guide body or the guide body parts and / or the adjusting screw in roller bearings arranged in the housing, e.g. Ball bearings are stored.

21. Holder according to claim 1, characterized in that the guide body or the guide body parts and / or the adjusting screw are mounted in slide bearings arranged in the housing.

oo Haitor according to claim 1, characterized in that the Housing in a base plate contains a tripod socket.

23. Holder according to claim 22, characterized in that the base plate is releasably attached to the housing body.

24. Holder according to claim 22, characterized in that the tripod threaded bush is releasably attached to the base plate.

25. Holder according to claim 1, characterized in that the housing consists of a first, the receiving body of the guide body with support rail and the said first locking means having the first housing part and a mounting of the first housing part serving second housing part, and that said Gear means are arranged in terms of drive between the first and second housing parts for rotating or pivoting the first housing part with respect to the second housing part about an axis parallel to the direction of the longitudinal expansion of the rail.

26. Holder according to claim 1, characterized by a magnet provided on the holder for storing tools made of magnetizable material.

27. Holder according to claim 26, characterized in that the magnet is arranged in the base plate.

28. Holder according to claim 1, characterized by non-positive clamping or positive-acting, by hand against spring force releasable locking means on at least one de _'r both for de'n passage de'r rail'offe> ne ^* * n Gohauseseiten of the holder.

29. Holder according to claim 1. characterized in that the housing of the holder is designed as a ring or ring segment with an arrangement of the guide body in such a way that the resulting axis of rotation or swivel axis of the camera with the connecting line of the center of the lens with the center of the focusing screen ( in the basic position of the camera) coincides at least approximately.

30. Holder according to claim 1, characterized in that the 'first and / or second locking means are each formed by a snap ring-shaped clamping body, the counteracting its own restoring (spring) force by means of an actuating handle mounted on the outside of the holder and via an adjusting cone or The like. Can be pressed against at least about half the circumference of the preferably cylindrically shaped outer surface of the rail or of the guide body.

31. Holder according to claim 1, characterized in that the first and / or second locking means are provided in the area which can be brought into contact with the rail or the guide body with a friction-increasing coating or are treated to increase friction.

32. Holder according to claim 1, characterized in that a handwheel is provided as the actuating means.

33. Holder according to claim 1. characterized. that a preferably controllable motor, in particular an electric motor, is provided as the actuating means.