JPH04126247U - panoramic adapter - Google Patents

Abstract

(57) [Summary] [Purpose] To enable switching between a normal screen and a panoramic screen at any time depending on the conditions of the subject. [Structure] A panoramic adapter 5 can be inserted into and removed from a sliding lid insertion opening 2c of a 35 mm film holder 2 having a sliding lid instead of the sliding lid. This panoramic adapter 5 is provided with an opening 51 that shields the top and bottom of the screen frame 2b and exposes only the intermediate band when inserted into the film holder 2, and on the insertion side, a light leakage prevention device provided in the sliding lid insertion opening 2c is provided. A triangular portion 51a is provided as a means for preventing interference with the light shielding member. On both side edges of the panoramic adapter, cutouts 52 and 53 are provided for disabling the detection means provided on the film holder 2 side for canceling the detection.
When the panoramic adapter 5 is inserted, the camera body side can be released, and the film holder 2 cannot be removed.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This idea is to attach a film holder with a removable light-shielding lid to the camera body. The present invention relates to a panoramic adapter that can be inserted and removed in place of a sliding lid while the device is attached.

0002

[Conventional technology]

In order to take pictures that allow you to see a vast field of view at a glance, it has been said that A panoramic camera called a panoramic camera has been used. This is the rear node of the photographing lens. While rotating the photographing lens and exposure slit around the center of rotation, the film surface becomes arc-shaped. The exposure is performed sequentially.

0003 This type of panoramic camera uses a large rotation angle to capture images from 180 degrees to 360 degrees. Although it is possible to photograph the entire field of view, the device becomes larger and heavier, and it becomes difficult to move. It is not suitable for photographing bodies, etc., so general amateurs can easily carry it around and photograph it. It was not something that could be done.

0004 Later, with rapid advances in lens design technology, wide-angle lenses were used to It is now possible to shoot panoramic images of 6 x 12 cm, 6 x 17 cm, etc. on film. Although some panoramic cameras have appeared, they cannot be used with enlargers for sizes smaller than 6 x 9 cm, which are very popular. cannot be processed, and even if you request a laboratory, you will be charged an enlargement fee for photographic paper with the same long sides. The prices were the same, giving the impression of being extremely expensive, and it was difficult to hope for widespread use.

[0005] However, in recent years, it has become possible to mask the top and bottom of the screen using 35mm film. As a result, panoramic cameras that can take 13 x 36 mm panoramic images are on the market. In conjunction with the laboratory's inexpensive panoramic printing service, Panoramic The explosive popularity of llama cameras has begun.

[0006] Inspired by this, I attached a mask to the screen frame of a regular 35mm camera and shot it in a 24x3 format. By switching between 6mm format and 13x36mm format, you can take normal and panoramic shots. Panoramic cameras that can switch between shadows and shadows have appeared on the market. There is.

[0007]

[Problem that the idea aims to solve]

However, with such conventional panoramic cameras, the focal plane For those with a shutter, the mounting bracket of the mask attached to the screen frame is attached to the shutter film. Otherwise, there was a risk of interfering with the shutter blades and damaging them. that To avoid this, expensive mask mounting jigs are required, making it difficult for amateurs to easily replace masks. It was difficult to carry out the exchange.

[0008] Furthermore, since the screen frame can only be switched when the camera back is open, it can be changed depending on the subject. It is inconvenient to be able to switch between normal shooting and panoramic shooting at any time. There were also problems.

[0009] This idea was made in consideration of the above points, and it can be changed from time to time depending on the conditions of the subject. We provide a panoramic adapter that allows you to switch between normal screen and panoramic screen. The porpose is to do.

0010

[Means to solve the problem]

In order to achieve the above purpose, this invention has a filter with a removable light-shielding lid. A panoramic adapter that can be inserted and removed in place of the sliding lid while the camera holder is attached to the camera body. When inserted into the above-mentioned film holder, the screen frame is To provide a panoramic adapter with an opening that shields the media and exposes only the intermediate body. It is something.

[0011] In addition, a film holder with a removable light-shielding lid is attached to the camera body. release operation on the camera body side is only possible when the lid is pulled out. In addition, lid detection allows removal from the camera body only when the lid is inserted. It is a panoramic adapter that can be inserted into and removed from a film holder equipped with a mechanism instead of a sliding lid. When inserted into the film holder, cover the top and bottom or left and right sides of the screen frame. In addition to providing an opening that exposes only the intermediate band, the lid detection means described above is disabled. We also provide a panoramic adapter equipped with a detection cancellation means.

0012 Furthermore, in the panoramic adapter described above, a film is inserted into the opening on the tip side. Interference prevention hand that prevents collision with the light shielding member provided in the holder's sliding cover insertion slot to prevent light leakage. Preferably, steps are provided.

[0013]

[Effect]

By configuring the panoramic adapter as described above, the camera With the film holder attached to the main unit, pull out the lid and insert the panorama adapter. When you enter the screen, the top and bottom or left and right sides of the screen frame are blocked, forming a panoramic screen frame. Panoramic shooting is now possible, and if you pull out the panoramic adapter from this state, normal shooting will be possible. Shadows become possible.

[0014] In addition, in the case of a panoramic adapter for a film holder equipped with a lid-lid detection means, By inserting a panoramic adapter, the lid detection means can be disabled. so that no extra operations are required when inserting a panoramic adapter. At the same time, the film holder can be removed in this state. This eliminates the risk of accidentally exposing the film surface.

[0015] Furthermore, the opening on the tip side of the panoramic adapter is designed to protect the light shielding member from the film holder. By providing a means to prevent interference, the end face of the opening will be shielded from light when the panoramic adapter is pulled out. This eliminates the risk of collision and damage to the free end of the member, and the panoramic adapter This allows for smooth insertion and removal.

[0016]

【Example】

Hereinafter, embodiments of this invention will be described in detail based on the drawings. Figure 4 shows a 35mm film holder implementing this invention and its light-shielding lid. The front perspective view, Figure 5, shows the internal structure of the 35mm film holder with part of its exterior removed. Figure 6 is a rear perspective view of the camera body to which the film holder can be attached. It is a diagram.

[0017] The camera body 1 is mounted on a 42x5 120 or 220 size Brownie film. A Brownie film holder that can shoot a 6mm horizontal screen and a 135 size 3 A 35mm film holder that can capture a 24 x 36mm horizontal screen on 5mm film. A focal plane that can be used by replacing it with a focal plane as needed. It is a shutter-type single-lens reflex camera.

[0018] At the bottom of the back of the camera body 1 shown in Fig. 6 is a 35mm film holder shown in Figs. 4 and 5. A locking plate 11 that can be engaged with a locking plate 21 of a film holder (hereinafter referred to as “film holder”) 2 is fixedly installed in the upper part of the film holder 2, and the film holder 2 is inserted through the long holes 2a, 2a into the inside thereof. A connecting hole 22a of a slide lever 22 (see FIG. 5), which will be described later, is provided to be slidable left and right. , a pair of locking claws each having a tapered portion 12a and a stepped portion 12b that can be engaged with the side walls of 22a. 12, 12 are fixedly installed.

[0019] Also, on the upper left side of the back of the camera body 1, there is a connection terminal 23 on the film holder 2 side. A connectable connection pin 13 for information transmission is biased backward and protrudes, and is located at the lower right corner. is equipped with a drive gear 14 that can mesh with the film winding gear 24 of the film holder 2. It is written.

[0020] The outside of the film holder 2 includes a screen frame 2b on the front and a holder main body 20 on the right side. A sliding lid insertion opening 2c into which a light shielding sliding lid 4 can be inserted is provided between the front plate 20a shown in FIG. There is also a film rewind knob 2 on the right side of the holder main body 20. 5. A film holder removal button 26 and a back cover 27 release button 28 are provided respectively. Ru.

[0021] Inside the film holder 2, there is a slide arm 29 on the top surface as shown in FIG. It is biased to the right by a return spring 30 and is mounted so as to be slidable in the left and right directions. This space A projection 29b is formed on the ride arm 29, and the projection 29b is connected to the slide lever 2 described above. 2 into the notch 22b, and return the film holder removal button 26 to the spring 30. By pushing in against the resistance, the slide lever 22 is released via the slide arm 29. The side wall of the connecting hole 22a and the stepped portion 12b of the locking claw 12 are disengaged and the flap is moved to the left. The film holder 2 is designed to be detachable from the camera body 1.

[0022] Then, adjacent to the slide lever 22, the first lid detection lever 32 is moved by the shaft 31. It is pivoted and biased in the counterclockwise direction by a spring 33, and the locking portion 32a is attached to the slide lever. It can be freely engaged and detached from the bent portion 22c of 22. Furthermore, the above-mentioned connection terminal 23 is provided. A second lid detection lever 35 is pivotally mounted on a shaft 34 adjacent to the printed circuit board 23a. A normally open leaf switch 36 whose top end is provided on the back surface of the printed circuit board 23a. When the leaf switch 36 is off, the leaf switch 36 is biased in the counterclockwise direction by the movable contact piece 36a. Two types of lid detection means are configured to enable release operation on the camera body 1 side. to be accomplished.

[0023] In addition, 37 in FIG. 5 is a plant such as a telescope installed on the front surface of the holder main body 20 so that it can be raised and lowered. It is a light-shielding member made of a blanket, and an extremely thin leaf spring is attached to the inside. When the sliding lid 4 is inserted, it comes into close contact with the back surface of the sliding lid 4, and when the sliding lid is removed. Sometimes it is placed in close contact with the back surface of the front plate 20a to prevent light leakage from the sliding cover insertion opening 2c to the film surface. Stop.

[0024] Now, if you insert the lid 4 into the lid insertion slot 2c from the state shown in Figure 4, it will be completely inserted. In this state, as shown in FIG. The levers 32 and 35 each rotate to the right. As a result, the slide lever 22 is restrained. is released, the film holder removal button 26 can be pressed, and the connection hole 22a is opened. The engagement between the side wall and the stepped portion 12b of the locking claw 12 is released, and the film holder 2 is attached to the camera. In addition to being removable from the main body 1, the movable contact piece 36a of the leaf switch 36 is It is pressed by the fixed contact piece 36b and connected to the camera body side via the connection terminal 23 and connection pin 13. release is prevented.

[0025] Figure 1 shows how to insert and remove the film holder 2 into and out of the lid insertion opening 2c of the film holder 2 configured as described above. A diagram showing a panoramic adapter as an example of a possible embodiment of this invention together with a film holder 2. 4 is a perspective view similar to FIG. This panoramic adapter 5 has the same external shape as the above-mentioned sliding lid 4, and is located in the vertical direction in the figure. A horizontally long opening 51 is provided in the section, and notches 52 are provided at the tips of both side edges, and cutouts 52 are provided at the right side. Notches 53, 53 are provided, respectively.

[0026] The width of the opening 51 is approximately 13 mm, and its length is approximately 36 mm, which is the length of the screen frame 2b. When the film is enlarged and attached to the film holder 2, the upper and lower sides of the screen frame 2b are In addition, the notch portion 52 is configured to shield the left and right sides and not to shield the left and right sides. The bar 32 is allowed to rotate to the left, and the slide lever 22 and the slide arm 29 are moved to the left. This prevents the film holder 2 from being removed, and the notch 53 Allows the lid detection lever 35 to rotate to the left and enables release operation on the camera body side. The detection canceling means is constructed in such a manner that

[0027] Further, a triangular portion 51a is formed in the opening 51 on the tip side of the panoramic adapter 5. , when the panoramic adapter 5 is removed, the triangular portion 51a is blocked by the film holder 2 side. The interference prevention means is constructed by preventing the optical member 37 from colliding with the free end surface and causing damage. Ru.

[0028] Here, the operation of the embodiment configured as described above will be explained. Locking plate 21 of film holder 2 loaded with 35mm film and inserted with sliding lid 4 into the locking plate 11 of the camera body 1, and attach the upper part of the film holder 2 to the camera body. When pressed in the direction 1, the connecting hole 22a of the slide lever 22 shown in FIG. The locking claw 12 shown in 6 is inserted, and its tapered portion 12a touches the side wall of the connecting hole 22a. Press the spring to return the slide lever 22 and the slide arm 29 that moves together with it. After moving it to the left in FIG. 5 against the biasing force of The film holder 2 is fixed to the camera body 1 by moving to the right.

[0029] If you pull out the lid 4 from this state and insert the panoramic adapter 5, it will be completely inserted. In the state shown in Figure 2, the top and bottom of the screen frame 2a are covered and only the middle band is exposed. A panoramic screen frame of 13 x 36 mm is formed.

[0030] At the same time, the first lid detection lever 32 faces the notch 52 and allows its left rotation. Then, the locking part 32a locks the left row of the slide lever 22 and the film holder 2 is removed. At the same time, the second lid detection lever 35 faces the notch 53. The leaf switch 36 is turned off and the release on the camera body side is released. It becomes possible to

[0031] In addition, if the panoramic adapter 5 is not fully inserted, the opening will open as shown in Figure 3. 51 is located within the screen frame 2a, and "vignetting" occurs on the left side of the shooting screen. . In this case, the first lid detection lever 32 is kept in a left-rotated state and the film holder is rotated to the left. At the same time as making it impossible to remove the panoramic adapter 2, the second lid detection lever 35 The leaf switch 36 is turned on and the leaf switch 36 is turned on. Disables the release on the camera body side to prevent shooting failures.

[0032] In the above embodiment, the opening 51 of the panoramic adapter 5 is connected to the light shielding member 38. Although the triangular part 51a for preventing interference is provided, the shape is not limited to this. As shown in FIGS. 8(a) and 8(b), the semicircular portion 51b or the open portion 51c may also be used. I can't support it.

[0033] Furthermore, as shown in FIG. 8(c), an opening 5 is provided at the top of the panoramic adapter 5'. 1' to cover the lower half of the screen frame 2b and perform panoramic shooting on the upper half. This panoramic adapter 5 is turned upside down and front and back so that the opening 51' is on the lower half. , if you block the upper half of the photo taken first and take a panoramic shot of the lower half, the frame will be Two panoramic screens can be obtained per film frame, allowing effective use of film. Wear.

[0034] Next, FIGS. 9 to 15 show the camera body and film holder that are different from the previous example. This figure shows another embodiment of this invention.

[0035] Figure 12 is a front perspective view of a 35mm film holder implementing this invention, and Figure 13 is a A perspective view showing the internal structure with a part of the exterior removed, and FIG. 14 is the film holder. FIG. 3 is a rear perspective view of the camera body to which the camera body can be attached.

[0036] The camera body 6 in this embodiment is a 120 or 220 size brownief. A brownie film holder capable of photographing a 56 x 70 mm screen on the film, and 2 A 35mm film holder capable of photographing a 4 x 36mm screen can be attached as needed. This is a single-lens reflex camera with a lens shutter that can be used interchangeably. The film holder is rotated 90 degrees around the optical axis of the photographic lens to move the screen vertically and horizontally. can be switched freely.

[0037] The back of the camera body 1 shown in FIG. 14 has a 24×36 A 35mm film holder (hereinafter referred to as "film holder") having a screen frame 7a of mm A connecting shaft 61 that fits into the connecting hole 71 of the film holder 7 is provided protrudingly. Press it against the camera body 6 and lock the lock knob 72 on the film holder 7 side as shown in Figure 12. By moving it to the right, the lock ring 73 rotates counterclockwise and the filter is removed. A camera holder 7 is attached to the camera body 6.

[0038] In this state where the film holder is attached, the rotational drive shafts 62a and 62 on the camera body 6 side are b fits into the winding shaft 74 on the film holder 7 side, and By operating the winding lever 63, the mirror and light shielding frame on the camera body side are set. The film on the film holder side is wound in parallel with the setting of the lens shutter on the lens side. It is lifted up.

[0039] In addition, when the switching lever 64 is set to the index R in this state, the rotational drive shafts 62a, 6 2b is retracted, the connection with the winding shaft 74 on the film holder 7 side is released, and the film is The holder 7 can be rotated 90 degrees to switch the screen between vertical and horizontal directions.

[0040] At the lower left front side of the film holder 7, there is a lid detection lever 75 as shown in FIG. is biased in the clockwise direction by a spring 76, and the lid detection lever 75 is The actuating lever 77 is rotated to the left due to the weak biasing force of the spring 78 and is engaged. The bent portion 77a fits into the notch 73a of the lock ring 73, thereby locking the lock ring 73. The knob 72 is prevented from moving in the unlocking direction. Figure 13 shows the lock knob 72. The lock ring 73 is shown in the locked position.

[0041] Here, when the sliding lid 8 is inserted into the sliding lid insertion opening 7b of the film holder 7, the image shown in FIG. As shown, the sliding lid detection lever 75 engages with the side surface of the sliding lid 8 and rotates to the left against the spring 76. Then, rotate the operating lever 77 to the right against the spring 78 until the bent portion 77a is locked. from the notch 73a of the ring 73. This allows the lock knob 72 to be moved to the left in the figure. Rotate the lock ring 73 clockwise to attach the film holder 7 to the camera body. It becomes possible to remove it from the body 6.

[0042] In addition, when the sliding lid 8 is inserted, the sliding lid detection pin 65a provided on the camera body 6 side, Either one of the pins 65b is pressed against the pin 77b of the operating lever 77, and the The electromagnetic relay is activated by turning on the normally open leaf switch (not shown) provided in each This prevents the output of the release signal of the shutter circuit, keeps the electromagnetic magnet inactive, and protects the Disables the release of the camera body side 6.

[0043] FIG. 9 shows how the film holder 7 having the above-described structure is inserted into and removed from the lid insertion part 7b. Another possible embodiment of the panoramic adapter of the invention is shown with a film holder 7 13 is a perspective view similar to FIG. 12. FIG. This panoramic adapter 9 also has the same external shape as the sliding lid 8, and is located on the right side in the vertical direction in the figure. An opening 91 with an open end is provided, and notches 92, 92 are provided on both side edges, respectively. Ru.

[0044] The width of the opening 91 is approximately 13 mm, and its length when attached to the film holder 7. , as shown in FIG. 10, cover the top and bottom of the screen frame 7a, but leave the left edge unblocked. At the same time, the notch 92 allows the lid detection lever 75 on the film holder 7 side to rotate to the right. When the lock ring is prevented from rotating and the film holder 7 cannot be removed, Both allow the protrusion of the lid detection pin 65a (or 65b) on the camera body 6 side, and The unlocking means is configured to enable a locking operation.

[0045] In this embodiment, by opening the end 91a of the opening 5, Therefore, when the panoramic adapter 9 is removed, its end 91a is attached to the film holder 7 side. The light shielding member 79 (FIG. 13), which is similar to the previous embodiment, is fitted to prevent it from colliding with the free end surface and damaging it. This constitutes an interference prevention means to prevent interference.

[0046] This embodiment has the above-mentioned configuration, and a 35mm film is loaded and the sliding lid 8 is opened. Align the connection hole 71 of the film holder 7 into which the film is inserted with the connection shaft 61 of the camera body 6. While pressing the film holder 7 against the camera body 6, operate the lock knob 72. When the lock ring 73 is rotated counterclockwise in FIG. The inner circumferential surface of the lock ring 73 engages with the groove 61a, and the two are irremovably coupled.

[0047] If you pull out the lid 8 from this state and insert the panoramic adapter 9, it will be completely inserted. In the state shown in FIG. 10, the top and bottom of the screen frame 7a are shielded and only the middle zone is exposed. A panoramic screen frame of 13 x 36 mm is formed.

[0048] At the same time, one end of the lid detection lever 75 on the film holder 7 side faces the notch 92. The actuating lever 77 follows this rotation due to the biasing force of the spring 78. The bent portion 77a fits into the notch 73a of the lock ring 73 and locks. While disabling the operation of the knob 72 and making it impossible to remove the film holder 7, , when the operating lever 77 protrudes from the lid detection pin 65a (or 65b) on the camera body 6 side. to allow release.

[0049] In addition, if the panoramic adapter 9 is not fully inserted, as shown in Figure 11, The right end is in a state where parts of both the upper and lower ends of the screen frame 7a are exposed, but the lid detection pin is 65a (or 65b) is pressed by the pin 77b of the operating lever 77, disabling the release. Therefore, photographs will not be taken in this condition. In this embodiment, the screen is switched to the vertical position by rotating the film holder 7. In this case, the insertion of the panoramic adapter 9 blocks the left and right sides of the screen frame 7a. Become.

[0050] In this way, in any of the examples, the panoramic adapter must be inserted by pulling out the lid. In this state, the film holder cannot be removed from the camera body, and the film holder cannot be removed from the camera body. If the panoramic adapter is not inserted properly, there will be vignetting or excess on the screen due to the panoramic adapter. In situations where exposed areas occur, the release operation of the camera body is disabled and panoramic Failures caused by adapters can be completely prevented.

[0051] In addition, in the explanation so far, we have explained how to cut the screen frame on the film holder side when shooting panoramas. As mentioned above, a mask showing the panoramic screen is attached to the viewfinder surface. Alternatively, you can set partition lines for the panoramic screen on the viewfinder surface in advance. is necessary.

[0052]

[Effect of the idea]

As mentioned above, the panoramic adapter according to this invention is a filter with a sliding lid. Insert the panorama adapter instead of the sliding cover with the camera holder attached to the camera body. Panoramic shooting is possible by pulling out the panoramic adapter. Since normal shooting is possible, panoramic shooting can be performed at any time depending on the subject conditions. becomes possible.

[0053] Therefore, there is a film holder for normal photography and a film holder for panoramic photography. If you prepare a separate film holder, you can always use the film holder for normal shooting, which takes a large number of shots. Attach it to the camera body when necessary, and use it as a film holder for panoramic shooting as needed. By exchanging them, you can avoid mixing both screens in one film, and you can This makes it possible to efficiently process the drop-off process.

[0054] In addition, for cameras equipped with a lid-lid detection means, the panoramic adapter is equipped with a detection release means. What's more, when you insert a panoramic adapter, you don't have to do any extra operations to shoot panoramas. In addition to making it possible to remove the film holder in this state without any This eliminates the risk of accidentally exposing the film surface to light.

[0055] Furthermore, in the above device, the opening of the panoramic adapter is provided with a light shielding member to prevent interference. If a stop means is provided, the end surface of the opening will be damaged when the panoramic adapter is pulled out. It is possible to eliminate the risk of damage caused by colliding with the free end of the light shielding member, and It becomes possible to smoothly insert and remove the panoramic adapter.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing a panoramic adapter according to an embodiment of the invention together with a film holder.

FIG. 2 is a partially cutaway front view showing the film holder in a state in which a panoramic adapter is inserted.

3 is a front view similar to FIG. 2 showing the film holder in a state where the panoramic adapter has not been inserted yet; FIG.

FIG. 4 is a perspective view of the light shielding lid together with the film holder.

FIG. 5 is a perspective view showing the internal structure of the film holder with a portion thereof cut away.

FIG. 6 is a rear perspective view of the camera body to which the film holder can be attached.

FIG. 7 is a partially cutaway front view showing the film holder in a state in which the lid is inserted.

FIG. 8 is an explanatory diagram showing another example of the panoramic holder.

FIG. 9 is a perspective view showing a panoramic adapter according to another embodiment of the invention together with a film holder.

FIG. 10 is a partially cutaway front view showing the film holder in a state in which the panoramic adapter is inserted.

11 is a front view similar to FIG. 10 showing the film holder in a state where the panoramic adapter has not been inserted yet; FIG.

FIG. 12 is a perspective view showing the light shielding lid together with the film holder.

FIG. 13 is a perspective view showing the internal structure of the film holder with a portion thereof cut away.

FIG. 14 is a rear perspective view of the camera body to which the film holder can be attached.

FIG. 15 is a partially cutaway front view showing the film holder in a state in which the lid is inserted.

[Explanation of symbols]

1, 6 Camera body 2, 7 Film holder 2b, 7a Screen frame 2c, 7b Lid insertion slot 4, 8 Lid 5, 9 Panoramic adapter 32 First lid detection lever 35 Second lid detection lever 37 Light shielding Members 51, 91 Panorama adapter opening 51a Triangular part (interference prevention means) 51b Semicircular part (interference prevention means) 52, 53, 92 Notch part (detection release means) 65a, 65b Lid detection pin (camera body side) 75 Lid detection lever (film holder side) 91a Opening end (interference prevention means)

Claims (3)

[Scope of utility model registration request] 1. A panoramic adapter that can be inserted and removed in place of the sliding lid when a film holder having a removable light-shielding sliding lid is attached to a camera body, wherein the panoramic adapter can be inserted and removed in place of the sliding lid when the film holder has an insertable and removable light-shielding sliding lid. A panoramic adapter characterized by having an opening that shields the top and bottom or left and right sides of the frame and exposes only the intermediate body. [Claim 2] A release operation on the camera body side is enabled only when the flap is pulled out when a film holder having a removable light-shielding lid is attached to the camera body,
A panoramic adapter that can be inserted into and removed from a film holder in place of a sliding lid, and is equipped with a sliding lid detection means that allows removal from the camera body only when a sliding lid is inserted, the adapter being inserted into the film holder. A panoramic adapter characterized in that it is provided with an opening that shields the top and bottom or left and right sides of the screen frame and exposes only the intermediate body, and is also provided with a detection release means that disables the lid-lid detection means. 3. The panoramic adapter according to claim 1, wherein the opening on the distal end side is provided with an interference prevention means for preventing collision with a light shielding member for preventing light leakage provided at the lid insertion opening of the film holder. A panoramic adapter characterized by: