DE1497952A1 - Camera with depth of field indicator - Google Patents

Description

(13α) REGENSBURG ZOLLERSTRASSE 13 TELEFON 7522

U97952

Rejjensburg, the H- «JE IM»

Sirma Balda camera work
Rudolf G-rüter, limited partnership! Bünde / Westphalia, Stejbameiat er Strasse 16

B 1092 yes / Qh

Camera with visual acuity ~. Display device timing

With modern cameras there is generally a depth of field A display device is provided to indicate to the user within what distance he can expect a sharp image. Ba yourself these limits at a certain distance setting with changing the aperture also change is a corresponding one Coupling between the depth of field indicator and the diaphragm required.

909827/0667

Originally, the values were only taken from tables, later on the left and right of the central

such

Distance reference marks / applied for the individual panels. In individual cases, pointers were actuated from the diaphragm to indicate the limits and at the same time Reversing gears and non-linear other gears are used, which require a lot of effort.

According to the present invention, it becomes a very simple one ™ and effective depth of field indicator thereby created that, depending on the diaphragm adjustment, a stationary slot scale with the diaphragm setting means, in particular a diaphragm ring, connected field of view pair arrangement is assigned in such a way that with each Aperture setting only a certain one, the associated one Depth of field area limits corresponding pair of fields of view is released to the view. In this training result in very simple, in particular articulated transmissions, especially when the diaphragm ring itself as Support of the field of view pair arrangement is used, the stationary slotted scale, for example, on the cover-like part of a Lock housing can be attached. In the simplest case, there is a special one or movement path for each pair of fields of view provided so that mutual overlaps with false displays are avoided from the outset.

909827/0667

To save space, however, it is advantageous if several pairs of fields of view and associated slots are in the same enclosures are arranged and, as far as possible, a Field of view is used for several aperture positions or depth of field areas. Is particularly advantageous it if all pairs of fields of view and associated! slots are arranged in a row and follow the positions of the slot centers 2. B. the sails

(3-2n)

where L is an imaginary center line that preferably coincides with the center (L ") of the distance setting marking (101), t the displacement of the carrier (18) of the pairs of fields of vision in the field of vision pair area in the case of a diaphragm writing, s the width of the slit, s-hk the zen between two slits remaining web width, where k = zero and η means the f-stop, which can extend from 1 to any integer values, would be the positions B of the middle of the field of view, starting from a line L ¹ , the first f-stop with the imaginary line L coincides., Who should follow Hegel

B _n = * (n-1) t + A _n ,

where the height of the field of view = the height of the slot field and the width of the field of view = the width of the slot,

909827/0667

Also important is an exact centering of the load-bearing lock housing part, for which new means are given.

Further details are given in the following description, which is an exemplary embodiment with modifications represents, explained in more detail. Show it:

Pig. 1 shows a longitudinal section through a lock housing, which is provided with the depth of field display device according to the invention,

FIG. 2 shows the lock housing in a view along the section line II-II in FIG. 1 or after removal of orifice ring and filter thread carrier,

3 shows the plan view of the burning surface in the opposite direction of the aperture ring and filter thread carrier,

Fig. 4 is a longitudinal section, partially in view, in a position offset by 90 ° compared to Fig. 1,

5 shows the diagram of a slotted scale in connection with a pair of fields of view arrangement in two rows and for four f-stops,

6 shows another scheme in three rows for 7 f-stops,

7 shows a diagram in a row for 7 f-stops,

Fig. 8 Scheme of a range finder coupling with compensation,

909827/0667

Pig. 9 the scheme for a simple coupling of the parallax compensation,

Pig. 10-12 more single-row schemes for 7 or more f-stops.

The closure housing essentially comprises a can 1, which has a truncated cone-like lens mount 2 on the inside.

The cylindrical edge 3 of the box-like housing part 1 has interruptions at points 4 and 5

the one hand a locking lever 6 and a Blen- ™ reach through the control lever 7. At the front, the can part 1 is provided with a cover-like second housing part 8 cylindrical centering rim 9 and is held together with the rope 8 by four screws 10.

The fastening screws 10 are useful »as shown, in close proximity to the cylindrical wall of a box-like housing part 1 and preferably in half-recesses same as B.'s. from Fig. 4 seen- ι borrowed.

At the points 11 and 12 of the cover part 8 is a cover plate 13 screwed on. Furthermore, a ring 14 is screwed tightly to the cover 8 at the points 15 and 16. The ring 14 serves, in a manner to be explained later, to accommodate the stationary slotted scale.

909827/0667

On the cylindrical outer diameter 17 of the cover plate 13, an aperture ring 18 is guided, which the Aperture scale 19 carries. On the same part 19, in a manner to be explained later, is the arrangement of the pairs of fields of view intended·

The cover plate 13 also bears a lens designation ring 20 and the filter thread 21 is optional Screwing on a color filter and a lens 22 for focusing light for one carried by the cover part 8 Photoresistor 23 for the brightness measurement · With the diaphragm ring 18 is a sector within the meaning of the invention In the example shown, four individual diaphragms 24 are connected, preferably with the diaphragm ring 18 from one Part are injected. In addition, the diaphragm ring 18 has four almost opposite Säst gap η 25, with which hast balls 26 cooperate «The scale band 19 provided with fields of vision in a manner still to be explained and the fixed Hing 14 provided with a base seat scale are adjacent to one another with the smallest possible distance and together form in the simplest possible way an automatic depth of field display depending on the aperture adjustment, as is the case for the illustrated embodiment, for. B. from the schematic drawing of FIG. 5 emerges. This atapiel is suitable for four f-stops whose field of view displays are distributed on two legs «

909827/0667

The middle slot 28 for the first f-stop and the pair 29-30 for the second f-stop are in the row 27 of the fixed support 14, in the row 31 the pairs of slits 32, 33 and 34, all in all, for four f-stops. On the associated field of view ring 19, the first diaphragm stage and the slot 28 in sieve 27 are assigned the field of vision 36, the second stage with slots 29, 30 the fields of vision 37, 38, and furthermore in the adjacent row 31 of the third stage with pairs of slits 32, 33 Fields of view 39 and 40 | and the grooved step with pairs of bottom seats 34, 35 the fields 41 »42. When the field of view ring 19 in Fig. Ton congruent position of the lines L, L ¹ from each of a diaphragm step b and t to the left come the slits and the associated Siohtfelder one after the other to cover and deliver the corresponding display.

In iig. 6 shows the diagram of a modified depth of field display in which the slits and Siohtfelder are distributed in three rows 43, 44, 45. In this "tall" there are a total of seven aperture holes or -Stages possible and planned. The first aperture stage corresponds to the slot 46 and the visual field 47 in FIG middle row 44, the second stage the slots 48 and 49 and the seam fields 50, 51 in the third row 45,

909827/0667

the third stage the slots 52, 53 and fields of view 54 »55 in the middle row 44»

the fourth level the slots 56, 57 and the fields of view 56 »59 in the lower row 45»

the fifth level the slots 60, 61 with the fields of view 62 »63 in the first row 43»

the sixth level the slots 64 »65 and fields of view 66, 67 in the first row 43 and finally the seventh stage the slots 68, 69 and the Siohtfeider 70 and 54 in the middle row 44 · In this case, the field of view 54, which is ready for the third stage was intended to be used.

Finally, an arrangement is shown in FIG which all slots and fields of view are arranged in a single row and close together. In this Trap becomes the first stage through slots 71 and 72

, 73,
and the fields of view 74/74 the second stage through slits

) 75 »76 and fields of view 74 (also used by level 1) and 77 »the third stage through slots 78, 79 and fields of view 80, 81, the fourth stage through slots 82, 83 and fields of view 84 »85» the fifth stage through the slots 86, 87 and fields of view 88, 89 »the sixth stage through the Slots 90, 91 and fields of view 92, 93 »the seventh level formed by the slots 94, 95 and fields of view 96, 97.

909827/0667

•. T497952

. · "* ■■ - - ■ ■

In this example, the slots are very close together and are only separated by webs 98, which, however, are at least equal to the width of the slot. The slotted ring 14- at a suitable location 100 (see Fig. 1) a special window can be used to display the currently set Have aperture value, which is accordingly also plotted on the scale ring 19. 2> ie The positions of the slots and the associated fields of vision result from the formein

+ t- (2s + k) (5)

. 1 i

for the protective agents and

(n-1)

for the middle of the field of view, where L is an imaginary center line, which preferably coincides with the middle L ^{11 of} the distance setting marking 101, t the displacement of the carrier 19 of the pairs of fields of view in the field of view pair area at a diaphragm step b, s the slot width, s + k the web width remaining between two slots , 2s + k is the slot division, where k, as explained, can be = 0 and η denotes the f-stop, which can extend from 1 upwards in any number of values.

909827/0667

ITO / OV / im

In this example, the ratio of the aperture pitch to the slit pitch is 1 »10 and the distance to the inner one Slot centers 9/10 of the aperture step.

The height of the field of view should be as close as possible to the height of the slot field and the Field of view width = slot width. Furthermore, of course, must there is sufficient contrast between the respective field of view and the surroundings · For this purpose, the The surface of the slot support and the base of the field of view support are the same color and in a contrasting color to that of the fields of vision, preferably black and white or white and black or in each case in complementary colors red and green etc. held.

The hurry balls 26 are in gaps 102 of the fixed cover plate 13 between the ends of molded strips 103 and 104 of the same. The bar 103 further has integrally formed tabs 105, 106, the nose in connection with another holding \ 107 of the fixed cover plate 13 for clamping of a leaf spring 108 are used, the ends of the Bastkugeln 26 press in the East gaps 25 of the aperture ring 18th The hasty gaps 25 are separated by relatively pointed teeth 109, so that when the diaphragm ring 18 is turned, the bast balls 26 on the tooth tips do not f inden dead center positions, so that intermediate positions of the diaphragm ring are avoided.

909827/0 6 67

With the natural actuation force, the plumb point position is easily overcome anyway. More rabbits 110 of the bar 103 form a stop for the spring 108 when no or before balls 26 are introduced facilitate their introduction, the tips of the noses 109 find a guide for the aperture ring 18 on the circumferential surfaces of the strips 103 »104 ·

The band 19 of the diaphragm ring, which also carries the fields of view, is bent at approximately right angles with its ends 111 and engages with them around a rounded forehead

112 on the diaphragm ring and in a trapezoidal recess

113 of the same. The ends are matched by a trapezoidal or dovetail-shaped one laterally a wedge 114, which can be cut off, grips the ends 111 with the assistance of the rounded forehead 112, which in doing so serves as a lever support, attracts and tensions at the same time.

The diaphragm ring 18 is attached to its front circumference for purposes ( Provided with a knurling 115 for easy actuation. As can be seen from Fig. 1, the aperture ring is through the adjacent parts, cover plate 8, fixed slot carrier 14 and fixed filter thread carrier 13 largely includes and led.

909827/0667

I H O / O ν / Α

The fixed slot carrier 14 in turn serves to guide of the distance adjustment ring 116, which is provided with a marking tape support 117 is provided and with an integrally formed driver 118 through a slot-like recess 119 of the cover plate 8 of the lock housing engages through it and with the driver front tip 120 in a matching tooth gap of the toothing 121 of an objective lens carrier 122 engages, the cross section of which is kept approximately U-shaped, with on the inside of the outer U-leg 123 a thread 124 is formed which engages in a Gregen thread 125 of a projection 126 of the housing plate 8. The toothing 121 is used to adjust the basic position. During use, the intervention remains 120, 121 unchanged, but regardless of this, an unimpeded axial displacement can occur during the rotation of the part 122 take place between 120 and 121. This creates a very simple coupling between the adjusting ring 116 and objective lens carrier 122 achieved, the former ^ being axially immovable and only rotatable. Of the Adjusting ring 116 is held on the opposite side by lugs 127 molded onto the socket part 1 of the closure housing, which only need to be provided at a few points in the scope. Incidentally, the camera including the Lugs 127 closed off at this point by an indicated cover plate 128, so that a harmonious Overall picture results.

909827/0667

.1 * 97952

The fact that the objective lens carrier 122.ein inner and the associated extension 126 of the housing plate 8 has an external thread possesses various advantages. On the one hand, the body 8, 126 disappears when it cools down the thread 125 somewhat and can thereby be removed from the mold easily and without endangering the threads. on the other hand When pressing in the objective lens 129 because of the U-shaped cross section of the rope 122 has an influence the thread 124 practically excluded.

It is convenient that the distance adjustment male thread be closed by a tool insert with a conical mating surface form, which serves as an ejector when demolding, so that when cooling, the housing part from the thread of the insert can shrink out quickly and can be easily unscrewed.

In cameras, especially those whose housing parts and especially the lens support parts are made of plastic and with, as provided here, hanging parts 14 »19 that closely surround one another, large average or Diameter, which are twisted against each other, is the exact centering and alignment of the lens and Hingträger very important, but also particularly difficult. According to the present invention, a particularly high centering accuracy is achieved achieved by the fact that the two work

909827/0667

the halves of each housing were concentric are centered conically to the lens or sing axis. There are several ways to do this. Sine is in. 1 indicated by dashed lines by the common conical surface 130. In this case protrudes from one tool half, a. B. of the cover part 6 a conical extension 131 in a hollow cone 132 of the other tool part · you both tool halves can be ground to a very high quality so that the smallest solerances can be maintained.

There is another, usually even more advantageous, option in that the two tool halves of each housing part in the port setting conical housing surfaces to one another are centered, with at least one cone on the mating cone only with partial surfaces distributed on the circumference of the cone to which later housing recesses correspond.

In the case of this can-like closure housing part 2, the conical inner surface 133 is particularly suitable for this purpose, which continues in the left (not shown) tool half in the area 134, while for the right half of the tool, the conical surface 135 is also in the surface at some points on the circumference 134, which represents the common surface, continues,

909827/0667

After removal from the mold, this occurs in the area 134 Openings 136 in part 2, the epater after insertion of the lens 137 for receiving -von locking lugs 138 of a Linsenhai teringes 139 can be used, the hasty lugs on the surfaces UO of part 2 are in contact.

In a similar manner, the cover-like part β of the closure housing also has recesses 141 into which a

Lens retaining ring 142 snaps into place. Parts 2 and 8 will be

I centered on one another, as already mentioned above, close to the circumference by means of mating surfaces 9. It is advantageous to design these mating surfaces at the same time as separating surfaces for the associated tool parts, whereby it is expedient! z. B, for the can-shaped housing part 1, 2, the separating surface, which should be cylindrical per se, continues in FIG. 1 for the right tool half in the conical surface 143, so that easy removal from the mold is ensured. Towards the right, the separating surface can then continue cylindrically as an insert separating surface. In a similar way, the surface 9 is also chosen as the insert separating surface for the cover part 8. As already described above, the can-like T # il has recesses 41 5 on a front circumference for the passage of the locking lever 6 and the driver 7 between the diaphragm ring and the lock. The resulting interruptions in the circumference of the housing part 1 ensure a desired resilient engagement between the two parts 1 and 8.

Contact surfaces 144 prevent tilting of the pile

909827/0667 rings 13.

Distance setting ring 116 advantageously has a conical lower surface 145 »of an outer counter surface 146 of the housing part 1 corresponds. A handle 147 allows convenient operation.

On the camera side, a strong fitting ring 148 is formed on the can bottom of the housing part 1, which is used for Centering of the lock housing 1 on the camera (not shown) is used, the fitting cylinder surface 149 again serving as a separating surface for a tool insert. The fitting ring 148 should at the same time have such a strength that it prevents warping of the can bottom and next to it Auoh Bur the inclusion of threaded holes 150 for attaching the shutter housing to the actual camera as well as for openings (not shown) for the passage of coupling parts, release levers, lead wires etc. from and to the camera.

Since, in the embodiment according to the invention, the distance adjustment ring is located far in front near the light entrance, there is a relatively wide space from it to available for the camera body. This fact can be used to create a guide curve for the Rangefinder transmission in the form of curve 151 C ^ ig. 4), which is connected to the distance setting ring 116 via a web 152. This guide curve 151 can in the manner shown in FIG. 9 with a

909827/0667

Sensor 153 cooperate, the one connected to this pivotable mirror 154 in the range finder light path affects how such facilities are known per se.

In a similar way, another, expediently as, Skirts shaped guide curve 1551 see Fig. 4 and Fig. 9, may be provided, for the purpose of parallax adjustment as a system for a stop 156 of a viewfinder frame

157 is used, which in optionally curved slots 153 by means of j

Pins 159 is guided and by a spring 160 against the guide curve 145 is pressed on · also takes place here the transmission by the shortest route and without cumbersome articulated arms or the like. And therefore cheap and reliable.

In FIGS. 10-12, further single-row schemes for seven or more f-stops are shown. So shows Fig. 10 is a diagram in which with relatively narrow slots of the slot scale 161 a substantial

Shortening of the scale expansion of the movable visual '

Scale 162 can be achieved in relation to the slot scale 161 can. In this example, the aperture step is 26 units and the distance between the inner slot centers is 18 Units, the slot width one unit, the web width 9 units, the slot division accordingly 10 units.

The associated formulas for the slot and field of view centers ring

«Ii + (2On - 1) r

909827/0667

Bn - A _n + 32 r (n - 1) where r is a scale factor, e.g. B. 0.1-0.3 Bim.

Everything else follows from the comparison with Pig. 7. In the example of FIG. 10, there is a visual scale 162 which is only slightly longer than that Slotted scale 161, although relatively narrow slits have to be accepted

In the Pig example. 11, a substantial shortening of the movable scale with relatively wide slots at the same time is achieved by working with variable port holding steps Bn. Structurally, this does not cause any particular difficulties, since the respective position of the viewing scale is due in any case Over-center effect is inevitably observed. Sin A simple law for the progressive steps cannot be specified with the movable visual scale, the positions but can be done empirically by shifting the scales against each other, taking into account that none Double indications occur are obtained.

In this example, the clear distance between the inner slots is 45 units, the slot division 5 » the ratio of web to slot width = 1. The values Bn

909827/0667

- 19 - correspond to the sequence 0 / 7.5 / 37.5 / 50/80 / 87.5 / 125,

The scheme according to FIG. 12 has the advantage that the slots of the fixed part are seamlessly connected to one another can. Instead of individual slots, HnTrs and right a common slot 163, 164 can therefore be used. Here too, variable continuation steps are used to shorten the movable scale (custom made · The clear distance between the inner slits is 15 units, the slot division is 3 and the ratio of web to base slot width is »0, the Aperture steps correspond to the sequence 0, 21, 48, 69, 84, 111, 132. As a result, the visual scale is only about three times as long as the slotted scale, despite the common slots.

With 6 aperture steps and 3 units of slot width or slot division with the slots combined to form 2 large sole slots, a favorable dimension is one with 12 units of clearance between the inner slits (and an aperture sequence of O / 18/42/60 / 76.5 / 99.

With 8 f-stop steps and 18 units of clearance, with otherwise the same values as above, a favorable one was achieved Aperture sequence according to 0/24/54/90/111/135/162/192.

909827/0667

Claims (1)

Claims 1. Camera with depth of field ~ A.nstellungevorrich.tung, thereby characterized in that a stationary slotted scale (H; 99) depending on the diaphragm adjustment, one with the diaphragm setting means, in particular a diaphragm ring (18, 19) connected field of view pair arrangement is assigned in such a way that with each aperture setting only one certain pair of fields of view corresponding to the associated depth of field limits are released for viewing will. 2. Camera according to claim 1, characterized in that several pairs of fields of view and associated slots in the same Row are arranged and, as far as possible, a field of view is used for several aperture positions or focus areas will. 3. A camera according to claim 1 and 2, characterized in that all pairs of fields of view and associated slots are arranged in a row and the positions A _{n of} the slot centers follow the rule 909827/0667 where L is an imaginary center line, which preferably coincides with the center (L ") of the distance setting marking (101), t the displacement of the carrier (18) of the pairs of fields of vision in the field of vision pair area at a diaphragm step, s the slot width, s + k the remaining between two slots Bar width, where k can also be zero, the ratio of the aperture pitch to the slit pitch is 10s1 and η denotes the aperture step, which can extend from 1 upwards in integer values, while the positions B _{n of} the middle of the field of view, starting from i of a line L ', the for the first f-stop coincides with the imaginary line L, the rule should follow: where the field of view height = slit field height and the field of view width = Slot width should be. 4. Camera according to claim 1 to 3, characterized in that the surface of the slot carrier and the subsurface of the Field of vision wearer in the same color and in contrast to the fields of vision, preferably black and white or white and black, are held. 5. Camera according to claim 1 to 4, characterized in that Means are provided to prevent intermediate positions of the Blendeneins tellmittel. 909827/0667 6. Camera according to claim 1 hie 5, characterized in that that the diaphragm ring is under the action of two locking balls offset by about 180 ° (26) or -Sollen, whose associated bast notches are separated by relatively pointed noses (109) without any significant dead center effect. 7. Camera according to claim 1 to 6, characterized in that the Siohtfeidträger (19) is designed as a band that is attached to its ends (111) is bent at right angles before introduction and that these ends after introduction with the help one inserted transversely into a dovetail groove (113) Wedge (II4) are pivoted about a rounded edge (112), and thereby the band (19) is tensioned. 8. A camera according to claim 1 to 7, characterized in that for the two hurry balls (26) or rollers as Detent spring a common leaf spring (108) is used, which is in its center between three lugs (106, 107) of the detent ball (26) receiving resting pilter rings (13) is held, 9. Camera according to claim 1 to 8, characterized in that the slotted ring (14) has a special window (100) for the Has display of the set aperture value. 10. Camera according to claim 1 to 9, characterized in that in the orifice ring (18) the number and the value of the orifice 90982 7/0667 - 23 denone division correspondingly separated aperture openings (24) are formed in the aperture ring adjustment one after the other in the light path of the for the brightness measurement provided photoresistor (13) are brought. 11. Camera according to claim 1 to 10, characterized in that that the fixed slotted ring (H) tone a lid-like VerschiußgehäuBeteil (8) is carried, and in turn on the camera side as an axial stop for a partial distance ring (119) is used. " 12. Camera according to claim 1 to 11, characterized in that that when using a two-part camera shutter housing the two halves of the tool with line seats on both ropes of each housing part are conically centered on one another and concentrically to the lens axis (130-132). 13 · Camera according to claims 1 to 12, characterized in that that the two tool halves of each housing part in the Assortment (134) of conical housing surfaces sntriert one another are, with at least one cone resting on the mating cone only with partial surfaces distributed on the circumference of the cone, which later housing cutouts (136, 141) correspond. 14. Camera according to claim 1 to 13t, characterized in that the conical centering surfaces (134) are in the immediate vicinity of the cylindrical lens seats. 909827/0667. 15. Camera according to claim. 1 to 14 »characterized, that the resulting housing recesses (136 »141) as Undercut locking seats are used for lens retaining rings (139 »142) provided with corresponding locking lugs. 16. Camera according to claim 1 to 15 »characterized» that the fitting cylinder surfaces (9) of the two housing parts (1 »8) lying in the vicinity of the circumference of the housing in both Tool halves serve as parting surfaces for tool inserts. 17 · Camera according to claim. 1 to 16 »characterized by that the fastening screws (10) "which hold the two housing parts together" are in close proximity to the cylindrical land of the one "box-like" closure housing part (1) and preferably in half-recesses of the same are· 18. Camera according to claim 1 to 17 »characterized in that to center the closure housing on the camera of one of the housing parts (1) on the camera side on the bottom of the can Fitting ring (148) is formed, the fitting cylinder surface (149) of which is preferably also used as a burning surface for tool inserts serves. 19 · Camera according to Claims 1 to 18, characterized in that » the fitting ring (148) is so strong that it prevents the bottom of the can from being warped and is also used to accommodate 909827/0667 threaded holes (150) for fastening the lock housing on the camera and for openings for inserting coupling parts, release levers, lead wires etc. can serve to and from the camera. 20 · Camera according to Claims 1 to 19, characterized in that Evenly distributed around the can rim, possibly one another opposite, for locking actuation means, e.g. B. Shutter tensioner and shutter lever, recesses (45) are provided, which at the same time compensate for material tensions serve in the pass zone " 21. Camera according to claim 1 to 20, characterized in that the distance adjustment thread on one, preferably the cover-shaped housing part (8) as an external thread (125) is molded 22. Camera according to claim 1 to 21, characterized in that the distance adjustment external thread (125) by a Tool insert is formed with a conical mating surface, which serves as an ejector when demolding, so that when cooling the housing part can shrink out of the thread of the insert. 23 · Camera according to Claims 1 to 22, characterized in that the Erontlensträger (122), which can be rotated for the purpose of adjusting the distance, is U-shaped in the area of the Terstellgewindes 909827/0667 Has cross-section, the thread being on the inside of the outer U-leg (123) , so that any deformations when the lens is pressed in do not affect the thread play. 24 · Camera according to claims 1 to 23 »characterized in that that the front lens carrier has a toothed ring (121) on the circumference, in which one with the distance setting ring connected driver (118, 120) engages, which in the exact adjustment position in the next adjacent tooth gap is introduced and is axially displaceable in it when the distance is set later, so that the distance setting ring (116) can be designed to be axially immovable and only rotatable. 25 · Camera according to claims 1 to 24, characterized in that that the front of the housing by a pilter thread ring (13, 21) is covered, which is centered on the housing and preferably at at least two points (11, 12) is attached and in turn for the central mounting of an aperture ring (18, 19) »also for guidance or Holding of bast balls (26) or rolls with bast springs (108) for the diaphragm ring and for holding an illumination lens (22) is used for a photo resistor (23) attached to the housing. 26 · Camera according to Claims 1 to 25, characterized in that the bearing surface (H-5) of the distance adjustment ring (116) 909827/0667 - 27 - is conical on the closure housing (146). 27. Camera according to claim 1 to 26, characterized in that that the diaphragm step is kept equal to or smaller than the distance between the middle of the slit for the first diaphragm stage. 28. Camera according to claim 1 to 27, characterized in that that recheck-like aperture steps are used to Avoid double displays, whereby the individual diaphragm steps from level to are expediently due to the over-center effect Level must be adhered to * 29 Camera according to Claims 1 to 28, characterized in that that with a clear distance between the inner slots of 40 units, a slot division of 5 and one Ratio of web to slot width »1 the loin steps about the iOlgeO / V57,5 / 5O / 80/8 * ^ 125 entepreohen. 30 · Camera according to Claims 1 to 29, characterized in that all the slots on one side form a common slot are summarized " 31 · Camera according to claim 1 to 30, characterized in that with a clear distance between the inner slots of 16 units, the slot pitch of 3 »and the ratio of Bridge to sole seat width "O the center of the bellows about the This corresponds to 0/21 / 48/69/84 / 11T _s / 132. 909827/0667