Asahi Pentax K ( Tower 29 in the USA , Asahi Pentar K in South Africa ) is a small format single - lens reflex camera manufactured by Asahi Optical in 1958 in black and silver [1] [2] [3] . The camera was first introduced to the general public at Photokina -58. In total, about 21,454 cameras of this model were released [2] after which the cameras were discontinued in the same year giving way to the updated Pentax S2 model. The K model was essentially a Pentax S camera with some enhancements.
| Asahi pentax k Asahi pentar k Tower 29 | |
|---|---|
 | |
| Type of | Single lens reflex . |
| Manufacturer | Asahi optical |
| Year of issue | 1958 |
| Lens mount | Threaded connection M42 × 1 . |
| Photo material | Type 135 film |
| Frame size | 24 × 36 mm. |
| Focusing | Manual |
| Exposition | Manual. |
| Gate | Focal mechanical, 1-1 / 1000 s, B , T |
| Flash | Sync contacts: FP, X. |
| Viewfinder | Mirrored with a fixed pentaprism . |
| Weight | ≈ 580 g |
Content
Differences from the Pentax S predecessor camera
The camera was equipped with an updated kit lens : “Auto-Takumar 55mm 1: 1.8”, which could iris automatically.
The innovation allowed focusing with an open aperture, which simplified the task (especially in low light conditions).
It was assumed that after manual installation of the diaphragm, the latter was opened by the photographer using a special lever, and when the shutter was released, the camera automatically closed it to a preset value.
The camera shutter of this model could work out the shutter speed in 1/1000 sec. Otherwise, there were no changes in the shutter. still installed a pair of disks.
Long (1/30, 1/15, 1/8, 1/4, 1/2, 1 s) and T were set by the head on the front of the camera (in the future this place became a classic for self-timer), and short (1/1000 , 1/500, 1/125, 1/60, 1/30 s) and B - the head on the top panel. To work with one of the heads, the second had to be moved to position “30”.
For the first time, the focusing screen for the company was equipped with a circle with microprisms [4] .
For the rest, the camera completely repeated its predecessor: it had protection against double exposure of the frame, the mechanical focal shutter with a horizontal stroke of the fabric shutter was cocked by a lever borrowed from Asahi Pentax . A pair of sync contacts FP and X have also been preserved.
Compatibility
Asahi Pentax K is compatible with any lens with M37 × 1 thread (using an adapter) or M42 × 1 with a 45.5 mm working distance.
See also
- Asahi pentax
Links
- (English) (German) Camera Asahi Pentax K. Photos and description.
- (English) User manual.
Notes
- ↑ The history of the early Pentax cameras. Archived on September 30, 2009.
- ↑ 1 2 (Eng.) (German) Asahi Pentax cameras. Photos and description. Archived December 7, 2008.
- ↑ Asahi Pentax K on the pages of cameraphy.
- ↑ (Russian) A brief history of the development of 35 mm SLR cameras
| Asahi Optical Co. Single Lens Reflex Cameras , Pentax Corp. , Hoya Corp. Ricoh | |
| Series | Model |
|---|---|
| Film ( type 135 ), with M37 × 1 threaded connection. | |
| Asahiflex | Asahiflex I , Asahiflex II |
| Film ( type 135 ), with M42 × 1 threaded connection. | |
| Pentax | Pentax , S , K , S2, H2 , S3, H3 , S1, H1 , SV, H3v , S1a, H1a , S2 Super |
| Spotmatic | Spotmatic , SL , SPII, SPIIa , SP500 , SP1000 , Electro Spotmatic, ES , ESII , Spotmatic F |
| Film ( type 135 ), K-mount , without autofocus | |
| TO | K2 , K2 DMD , KX , KM , K1000 |
| M | MX , ME , ME Super , MG , MV , MV1 |
| Lx | Lx |
| A | superA, Super Program , programA, program PLUS , A3, A3000 |
| P | P3, P30 , P5, P50 , P3n, P30n, P30t |
| Mz / zx | MZ-M, ZX-M |
| Medical | MF , MF-1 |
| Film ( type 135 ), K-mount , with autofocus | |
| M | ME F |
| SF | SFX, SF1 , SF7, SF10 , SFXn, SF1n |
| Z / PZ | Z-1, PZ-1 , Z-10, PZ-10 , Z-20, PZ-20 , Z-50p , Z-1p, PZ-1p , Z-5 , Z-5p , Z-70, PZ- 70 |
| Mz / zx | MZ-5, ZX-5 , MZ-10, ZX-10 , MZ-3 , MZ-5n, ZX-5n , MZ-50, ZX-50 , MZ-7, ZX-7 , MZ-30, ZX- 30 , MZ-S , MZ-6, MZ-L, ZX-L , MZ-60, ZX-60 |
| * ist | * ist |
| Film ( type 110 ) | |
| 110 | Auto 110 , Auto 110 Super |
| Film ( medium format ) | |
| 67 | 6x7 , 67 , 67II |
| 645 | 645 , 645N , 645NII |
| Digital ( medium format ) | |
| 645 | 645D , 645Z |
| Digital (full frame) | |
| K | K-1 , K-1 II |
| Digital ( APS-C ) | |
| * ist D | * ist D , * ist DS , * ist DS2 , * ist DL , * ist DL2 |
| K | K-3 , K-3 II , K-5 , K-5 II, K-5 IIs , K-7 , K10D , K20D , K-30 , K-50, K-500 , K-70 , K100D , K100D Super , K110D , K200D , K2000, Km , Kr , K-S1 , K-S2 , KP , Kx |
| Mirrorless camera | |
| Bayonet K | K-01 |
| Bayonet Q | Q , Q-7 , Q-10 , Q-S1 |
| Non-batch production | |
| Digital | MZ-D , AP 50th Anniv. |