JPS5834406Y2 - Auxiliary lens barrel for camera - Google Patents
Auxiliary lens barrel for cameraInfo
- Publication number
- JPS5834406Y2 JPS5834406Y2 JP14442479U JP14442479U JPS5834406Y2 JP S5834406 Y2 JPS5834406 Y2 JP S5834406Y2 JP 14442479 U JP14442479 U JP 14442479U JP 14442479 U JP14442479 U JP 14442479U JP S5834406 Y2 JPS5834406 Y2 JP S5834406Y2
- Authority
- JP
- Japan
- Prior art keywords
- lens barrel
- lens
- camera
- auxiliary lens
- auxiliary
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Description
【考案の詳細な説明】
この考案の補助鏡筒は、簡易な構成の安価な広角撮影レ
ンズを使用でき、かつ、前方から着脱できるから、他の
レンズとの交換が容易なもので、すなわち、前面に撮影
レンズの取付部２を有し、後面に写真機への取付部１を
有する主鏡筒Ａと、広角撮影用レンズ３および取付部２
への取付部４を有する副鏡筒Ｂとよりなるものである。[Detailed description of the invention] The auxiliary lens barrel of this invention can use an inexpensive wide-angle photographic lens with a simple configuration, and can be attached and detached from the front, making it easy to replace with other lenses. A main lens barrel A having a photographing lens mounting part 2 on the front surface and a camera mounting part 1 on the rear surface, a wide-angle photographing lens 3 and a mounting part 2.
It consists of a sub-lens barrel B having an attachment part 4 to the auxiliary lens barrel B.
従来、写真機と撮影レンズとの間へ挿入して使用する望
遠撮影用補助鏡筒には凹レンズが取付けてあり、広角撮
影用補助鏡筒には凸レンズが取付けてあり、また接写撮
影用補助鏡筒にはレンズが取付けてなく、上記３種類の
補助鏡筒を目的に応じて使い分けており、従って、望遠
、広角および接写撮影を行うためには、３種類の補助鏡
筒を備えなければならない不都合がある。Conventionally, the auxiliary lens barrel for telephoto shooting, which is inserted between the camera and the shooting lens, has a concave lens attached, the auxiliary lens barrel for wide-angle shooting has a convex lens, and the auxiliary lens barrel for close-up photography has a concave lens attached. There is no lens attached to the barrel, and the three types of auxiliary lens barrels mentioned above are used depending on the purpose. Therefore, in order to take telephoto, wide-angle, and close-up photography, three types of auxiliary lens barrels must be provided. It's inconvenient.
上記不都合を解消するために、１個の補助鏡筒へ、望遠
撮影用レンズ鏡筒、広角撮影用レンズ鏡筒および標準レ
ンズ鏡筒を目的に応じて取付けて使用する補助鏡筒が開
発された。In order to solve the above-mentioned problems, an auxiliary lens barrel was developed in which a telephoto lens barrel, a wide-angle lens barrel, and a standard lens barrel are attached to one auxiliary lens barrel depending on the purpose. .
しかし、交換レンズを補助鏡筒の後面から取付ける構造
であるため、レンズを交換する場合は、補助鏡筒を写真
機から取外したのち、レンズを交換し、再び補助鏡筒を
写真機に取付けなければならず、手数を要する欠点があ
る。However, since the interchangeable lens is attached from the rear of the auxiliary lens barrel, when changing lenses, you must remove the auxiliary lens barrel from the camera, replace the lens, and then attach the auxiliary lens barrel to the camera again. However, there is a disadvantage that it requires a lot of work.
この考案の補助鏡筒は上記欠点を除いたもので、つぎに
使用法を説明すれば、主鏡筒Ａを取付部１をもって写真
機に取付け、前面の取付部２へ広角撮影用レンズ３を有
する副鏡筒Ｂの取付部４を取付ければ、広角撮影を行う
ことができる。The auxiliary lens barrel of this invention eliminates the above drawbacks, and how to use it is as follows: Attach the main lens barrel A to the camera using the mounting part 1, and attach the wide-angle photographing lens 3 to the mounting part 2 on the front. By attaching the mounting portion 4 of the sub-lens barrel B, wide-angle photography can be performed.
副鏡筒Ｂを取外し、標準レンズ用鏡筒を取付部２に取付
ければ、接近撮影ができる。By removing the sub-lens barrel B and attaching the standard lens barrel to the mounting portion 2, close-up photography is possible.
この考案の補助鏡筒は、交換レンズを前面に着脱できる
から、広角撮影レンズと標準レンズとの交換は容易かつ
迅速に行うことができる効果がある。Since the auxiliary lens barrel of this invention allows an interchangeable lens to be attached and detached from the front, it has the advantage that it is possible to easily and quickly exchange a wide-angle photographing lens with a standard lens.
第１図はこの考案の補助鏡筒に広角撮影用レンズ鏡筒を
取付けた状態の一部を切欠いた側面図、第２図は同上背
面図である。
１．２，４“取付部、３：広角撮影用レンズ、Ａ：主鏡
筒、Ｂ：副鏡筒。FIG. 1 is a partially cutaway side view of the auxiliary lens barrel of this invention with a wide-angle photographing lens barrel attached, and FIG. 2 is a rear view of the same. 1.2,4" mounting part, 3: Wide-angle photography lens, A: Primary lens barrel, B: Secondary lens barrel.
Claims (1)
取付部１を有する主鏡筒Ａと、広角撮影用レンズ３およ
び取付部２への取付部４を有する副鏡筒Ｂとよりなる写
真機用補助鏡筒。A primary lens barrel A having a photographing lens attachment part 2 on the front surface and a camera attachment part 1 on the rear surface, and a sub-lens barrel B having a wide-angle photography lens 3 and an attachment part 4 to the attachment part 2. Auxiliary lens barrel for camera.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14442479U JPS5834406Y2 (en) | 1979-10-18 | 1979-10-18 | Auxiliary lens barrel for camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14442479U JPS5834406Y2 (en) | 1979-10-18 | 1979-10-18 | Auxiliary lens barrel for camera |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5664014U JPS5664014U (en) | 1981-05-29 |
| JPS5834406Y2 true JPS5834406Y2 (en) | 1983-08-02 |
Family
ID=29375618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14442479U Expired JPS5834406Y2 (en) | 1979-10-18 | 1979-10-18 | Auxiliary lens barrel for camera |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5834406Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4513214B2 (en) * | 2001-02-15 | 2010-07-28 | 沖電気工業株式会社 | Wide angle photographing device and camera device using the same |
-
1979
- 1979-10-18 JP JP14442479U patent/JPS5834406Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5664014U (en) | 1981-05-29 |
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