JPH0455840A - Panoramic camera - Google Patents

Abstract

PURPOSE:To enable a user to easily enjoy panoramic photographing by interlocking an image plane changeover shielding plate and a finder visual field changeover plate to bisect the short side of the image plane of a film and photographing the two image planes, upper and lower. CONSTITUTION:The image plane changeover shielding plate 11 covers the lower half of the image plane 12 of the film. A lens barrel 15 exists i the position corresponding to the upper half of the image plane 12 of the film and the shielding part 13a of the finder visual field changeover plate 13 covers the lower half of a finder 14. The image plane changeover shielding plate 11 moves upward around a shaft 18 at the end of a connecting piece 17 cooperatively with a shutter release mechanism, not shown in Fig., and the finder visual field changeover plate 13 connected to the middle of the connecting piece 17 moves upward in order to make photographing on the lower half of the image plane 12 of the film. Then, the shielding part 13a of the finder visual field changeover plate 13 covers the upper half of the finder 14 and the transparent part 13b constitutes a visual field. The panoramic photography can be enjoyed without requiring special cameras and enlargers.

Description

Detailed Description of the Invention (Industrial Application Field) The present invention moves a mask that regulates the shooting range of the film and a mask that regulates the field of view of the finder at the same time, and divides the short side of the film screen into two to create a landscape image. The present invention relates to a device for taking panoramic photographs by obtaining a screen of .

(Prior art) As is well known, one cut of 35mm Bankawa film is 36X
It is 24mm. Conventionally, as shown in FIG. 4, a half-size camera has been provided which divides one cut into two parts on the long side of the screen of 18 mm x 24 mm, which corresponds to the length of one cut.

On the other hand, in order to easily obtain panoramic photographs, a panoramic camera is also available which takes a picture of 36 x 12 mm on a 36 x 24 mm screen by one shot of 35 mm film, as shown in Fig. 5.

Generally, when trying to obtain an elongated panoramic screen where the length of the short side is 1 and the length of the long side is 3, when shooting with a camera with a normal screen size of 36 x 24 mm and stretching the film image onto photographic paper, It was being trimmed. When cropping, you are creating a photo without using the top and bottom of the short edge of the film that was actually taken.

The panoramic camera shown in Fig. 5, which takes pictures with a screen size of 36 x 12 mm, also takes pictures by cutting off the top and bottom of the short side of the film screen. Therefore, images are created without using the top and bottom of the short side of the film screen that can be photographed.

Another method of obtaining a panoramic photo is a panoramic camera that uses two lengths to increase the length of the long side while keeping the length of the short side unchanged.

In this case, when enlarging the photo, the film screen size becomes a special size, so a special enlarging machine is required.

(Problems to be Solved by the Invention) Conventional methods for creating panoramic photographs include cutting the top and bottom of one screen in the short side direction, or making the screen a special size. If the top and bottom of the short side of the screen are trimmed when cutting or stretching, the top and bottom of the short side of the film will not be used and half of the film will be wasted.6 On the other hand, if the film screen dimensions are changed to a special size, This requires a special camera and enlarger, making it impossible to receive normal photographic jutting and enlarging services, making it impossible to enjoy panoramic photographs at a low price.

(Means for solving illumination points) In the present invention, in order to divide the film screen into two in the short side direction, a cover is provided that blocks one side, and the finder is also divided into two in the short side direction, and is linked to the above-mentioned cover. As a result, a panoramic camera that can effectively use film was obtained. Furthermore, by moving the photographic lens so that the optical axis is centered on the two-split screen, a panoramic camera that is not affected by peripheral aberrations of the photographic lens system can be obtained.

(Example) The present invention will be explained below with reference to Examples.

FIG. 1 is a perspective view of a panoramic camera according to a first embodiment of the present invention.

11 is a screen switching shield for Rtiing half of the film screen 12; 13 is a finder field switching board for changing the field of view of the finder 14; It is connected by a connecting piece 17 to a lens barrel holding plate 16 that holds a lens mirror 115 having a photographic lens. Then, the one-screen switching shielding plate 11 moves using the shaft 18 at the end of the connecting piece 17 as a fulcrum.

Then, the finder field of view switches 4Fi and 13 connected to the middle of the connecting piece 17 move in conjunction with each other.

FIG. 1 shows a state in which the upper half of the film screen 12 is photographed. That is, the screen switching shield 11 is connected to the film screen 12.
The lens barrel 15 is located at a position corresponding to the upper half of the film screen 12, and the shielding portion 13a of the finder field switching plate 13 covers the lower half of the finder 14.

To photograph the lower half of the film screen 12, the screen switching shield 11 moves upward about the shaft 18 at the end of the connecting piece 17 as a fulcrum in conjunction with a shutter release mechanism (not shown).
The finder visual field switching plate 13 connected to the middle of the connecting piece 17 moves upward, the shielding part 13a of the finder visual field switching plate 13 covers the upper half of the finder 14, and the transparent part 13b forms the visual field.

FIG. 2 is a perspective view of a panoramic camera according to a second embodiment of the present invention.

21 is a screen switching shield that blocks half of the film screen 22, 23 is a finder field switching board that changes the field of view of the finder 24, and is composed of a shielding part 23a and a transparent part 23b.The screen switching shield 21 is a camera. It is connected by a connecting piece 27 to a lens barrel holding plate 26 that holds a lens barrel 25 having a photographing lens. As the one-screen switching shield plate 21 moves, the lens barrel holding plate 26 moves as a pivot point for the axis 28 at the center of the connecting piece 27. Further, in conjunction with the movement of the lens barrel holding plate 26, the finder visual field switching plate 23 moves in conjunction with the shaft 30 provided at the center of the connecting piece 29 as a fulcrum.

FIG. 2 shows a state in which the upper half of the film screen 22 is photographed. That is, the screen switching shield 21 is connected to the film screen 22.
The lens barrel 25 is located at a position corresponding to the upper half of the film screen 22, and the shielding portion 23a of the finder field switching plate 23 covers the lower half of the finder 24.

To photograph the lower half of the film screen 22, the screen switching shield 21 moves upward in conjunction with a shutter release mechanism (not shown), and the connecting piece 27 moves about the shaft 28 to hold the lens barrel. The plate 26 moves downward, and the lens barrel 25 moves to a position corresponding to the lower half of the film screen 22. Furthermore, in conjunction with the movement of the lens barrel holding plate 26,
The finder visual field switching plate 23 moves upward using a shaft 30 provided at the center of the connecting piece 29 as a fulcrum, the shielding part 23a of the finder visual field switching plate 23 covers the upper half of the finder 24, and the transparent part 23b forms the visual field. do.

FIG. 3 is a plan view showing a film taken by the panoramic camera of the present invention. Δ to H indicate captured images. 1 taken with a regular 35mm camera
The cuts are formed from images shown as A and B, and the panoramic camera of the present invention can obtain two cuts in a width of 35 mm.

The shooting order can be A, B, D, C, E, F, HlG, and the screen switching shield and finder field switching board can be moved one cut at a time alternately, or A, C, E, Ct. The upper half of the film may be photographed, and then the images may be taken in the order of H, F, D, and B while moving and rewinding the screen switching plate and the viewfinder field switching plate.

A currently commercially available film will be used, and the screen dimensions in the long side direction will be the dimensions conventionally used. 35
When using millimeter roll film, one screen size is 36 x 24 mm, so 36 mm is the same, and 24 mm is 2
Divide it and take the blank part at 1mm center 1
It is set to 1.5 mm. Therefore, the screen size that can be drawn is 3
It has a long and narrow size of 6 x 11.5 mm. The same applies when using a brownie film or a sheet film.

(Effect of the invention) By making the long side of the film screen the same size as the commercially available size, you can enjoy panoramic photos at low cost without the need for a special camera or enlarger, eliminating wasted film and reducing the number of shots taken. This has the effect of doubling the specified number of shots. In addition, as shown in the second embodiment, by interlocking the screen switching shield and the photographing lens, it is possible to take photographs using the vicinity of the optical axis of the photographing lens, which has the effect of being unaffected by peripheral aberrations.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a panoramic camera according to a first embodiment of the present invention, FIG. 2 is a perspective view of a panoramic camera according to a second embodiment of the present invention, and FIG. 3 is a perspective view of a panoramic camera according to a second embodiment of the present invention. FIG. 4 is a plan view showing a film taken by a half-size camera, and FIG. 5 is a plan view showing a film taken by a conventional panoramic camera. 11.21... Screen switching shield, 12.2
2...Film screen, 13.23...
...Finder field switching board, 13a, 23a
......shielding part, 13b, 23b...
...Transparent part, 14.24...Finder, 15.25...Old lens barrel, 16°26...Lens barrel Holding plate, 17.27
．． 29・・・・・・Connection piece, 18.28.3o・
········shaft. Figure 1 Figure 1

Claims (1)

[Claims] In a panoramic camera that shoots an elongated panoramic screen with a short side length of 1 and a long side length of 3, the screen switching shield and the viewfinder field switching plate are linked to divide the short side of the film screen into two, allowing the film screen to be divided into upper and lower sides. A panoramic camera that takes pictures of two screens.