The Zenit-B is an SLR camera. It was built by KMZ from 1968 to 1973. There are a little under 900 000 pieces of the camera. The first two digits of the serial number indicate the year of production.
The Zenit B was sold under the names Revueflex-B, Kalimar SR100, Prinzflex 500, Meprozenit-Pro and Cambron-B, among others. In terms of functionality, these models are most likely identical.
The lenses of the Zenit-B can be changed. There were different editions of the Zenit-B. It was mostly delivered with an M42 thread. But there are also models with an M39 thread. The latter models, however, are very rare. The Helios-44-2 58mm f/2.8 is often found on SLR cameras. The focus of the lens has to be adjusted manually. There is no autofocus system.
The Zenit-B does not have a meter for proper exposure. The exposure time and aperture can be freely selected. The shutter has a bulb mode. In this, the shutter remains open as desired.
Films for the Zenit-B
The Zenit-B is designed for 35mm film. Films of this format are still readily available today and are still being developed. Possible films for the SLR are the Fujifilm Superia 400* for color images and the Ilford HP5* for black and white images.
The color film is a color negative film and is developed using the C-41 process. The C-41 process is performed by almost all photo labs. The black and white film must be processed in a black and white developer. The best results are obtained, usually, by developing the film yourself.
The film in the camera must be rewound manually, as there is no automatic film transport.
The use of a flash is possible via the PC flash socket. The Zenit-B comes with a self-timer. There is also a connection for a cable release and threads for a tripod.
The 35mm camera weighs 887 grams. It does not need batteries, as it is completely mechanical.
Technical datasheet
| Attribute | Specification |
|---|---|
| Type of Camera | Single lens reflex camera |
| Film format | 35mm |
| Film transport | Manual |
| Picture format | 24 mm x 36 mm |
| Lens mount | M42 lens mount |
| Focus | Manual |
| Exposure times | 1/500 second to 1/30 second, Bulb |
| Bulb mode | Yes |
| Date imprinting | No |
| Built-in flash | No |
| Flash Connection | PC-Flash |
| Tripod mount | Yes |
| Cable release thread | Yes |
| Self-timer | Yes |
| Power supply | Not necessary |
| Weight | 887 Grams |
| End of production | 1973 |
| Production duration | 5 years |
| Estimated value / Used price | 51,08 Euro Estimate based on used prices of 33 offers (possibly with different scope of delivery and/or condition). As of June 15, 2026 |
| Average used price in the year 2023 | 59,77 Euro (63.86 US-Dollar) |
| Average used price in the year 2024 | 62,96 Euro (67.11 US-Dollar) |
| Average used price in the year 2025 | 83,02 Euro (89.84 US-Dollar) |
FAQ about the Zenit B
Is the Zenit-B a complicated camera to use?
No, the Zenit-B is a relatively simple camera to operate. It's fully mechanical, so it doesn't require batteries. While it lacks automatic features, the manual controls are straightforward to learn.
What kind of film does this SLR use?
The Zenit-B uses standard 35mm film. Both color negative and black and white films are compatible. This type of film is still widely available and easy to develop.
How do I adjust the focus and exposure on the camera?
Focus is adjusted manually on the lens. The Zenit-B doesn't have a built-in light meter; you'll need to choose the aperture and shutter speed settings yourself.
Can I use a flash with my Zenit-B?
Yes, the camera has a PC flash sync terminal that allows you to connect and use an external flash. This will help take photos in low-light conditions.
What's the weight of the camera?
The Zenit-B weighs 887 grams, which is relatively heavy compared to modern cameras. However, its all-mechanical design contributes to its durability and reliability.