The Porst Autoflex is an SLR camera. It was sold by Photo Porst and presented in the 60s. It was manufactured by Mamiya. They offered the SLR camera as the Mamiya Auto-Lux 35.
The lens of the Porst Autoflex cannot be changed. The lens has a focal length of 48 mm. The name of the lens is “Sekor 1:2.8 f = 48 mm”. The model has no autofocus. The lens is focused manually. The closest focusing distance of this lens is 80 cm.
The Porst Autoflex has a built-in selenium light meter. The aperture and exposure time are set automatically by the camera. The camera comes with a Bulb mode. In this mode, the film is exposed as long as the shutter button is pressed. Hot-shoe flashes can be used with the Porst Autoflex. There is also a PC flash socket.
Films for the Porst Autoflex
The Porst Autoflex exposes 35mm film. 35mm films are still produced by various manufacturers. Possible films for the model are the Kodak Ultramax 400* for color photos and the Kodak T-Max 400* for b&w photos.
The color film is developed using the C-41 process. C-41 films are developed by almost all photo labs. For the B&W film, photochemistry is needed for the development of black and white films. This process does not follow a fixed standard and is quite individual. Some photo labs also offer black and white film development. Better results are usually achieved by developing the films yourself.
For the next picture, the film is wound manually. The Porst Autoflex has a thread for a tripod and cable release. The camera weighs 690 grams. The dimensions are 13.5 x 7.5 x 7.6 cm. The 35mm camera does not need batteries.
The Porst Autoflex can only be found used. The used price of a copy depends on its condition. Often you can’t find them on the used market anymore, so the value is often a bit higher.
Technical datasheet
| Attribute | Specification |
|---|---|
| Type of Camera | Single lens reflex camera |
| Film format | 35mm |
| Film transport | Manual |
| Picture format | 24 mm x 36 mm |
| Focal length | 48 mm |
| Widest aperture | f/2.8 |
| Minimum focus distance | 80 cm / 2.624 ft |
| Focus | Manual |
| Exposure times | 1/500 second to 1/15 second, Bulb |
| Bulb mode | Yes |
| Light meter | Yes |
| Exposure modes | Manual mode |
| Auto DX (Film sensitivity) | No |
| Date imprinting | No |
| Built-in flash | No |
| Flash Connection | Hot Shoe, PC-Flash |
| Tripod mount | Yes |
| Cable release thread | Yes |
| Self-timer | No |
| Power supply | Not necessary |
| Size | 13,5 x 7,5 x 7,6 cm |
| Dimensions in inches | 5.31 x 2.95 x 2.99 inches |
| Weight | 690 Grams |
| Company name of the brand | Photo Porst |
| Manufacturer | Mamiya |
| Country of production | Japan |
| Estimated value / Used price | 31,07 Euro Estimate based on used prices of 9 offers (possibly with different scope of delivery and/or condition). As of June 15, 2026 |
| Average used price in the year 2023 | 27,84 Euro (29.22 US-Dollar) |
| Average used price in the year 2024 | 56,00 Euro (60.61 US-Dollar) |
| Average used price in the year 2025 | 42,29 Euro (45.46 US-Dollar) |
FAQ about the Porst Autoflex
Is the Porst Autoflex a simple camera to use?
It's a manual focus camera, so it requires some learning. You adjust the focus yourself, and the aperture and shutter speed are set automatically by the built-in light meter. It's not as straightforward as modern cameras, but many find it rewarding.
What kind of film does this camera use?
The Porst Autoflex takes standard 35mm film, both color and black and white. Kodak Ultramax 400 and Kodak T-Max 400 are examples of films compatible with the camera.
Can I change the lens on the camera?
No, the Porst Autoflex has a fixed lens. The lens is a 48mm Sekor 1:2.8, which is good for general-purpose photography. It is not interchangeable.
How does the camera focus?
The camera uses manual focus, meaning you have to manually adjust the focus ring on the lens until the subject is sharp. The closest focusing distance is 80cm.
Does the camera need batteries?
No, the Porst Autoflex doesn't require batteries. The light meter is powered by a selenium cell, so it's ready to shoot anytime.