The Porst KB 100 is a viewfinder camera. It was sold in the 70’s by Photo Porst. The price in 1972 was around 150 German marks. The model was probably built by the company King from the Black Forest in Southern Germany.
The lens of the Porst KB 100 cannot be exchanged. The focal length is 45 mm and the largest aperture of the lens is f/2.8. The manufacturer’s designation of the lens is “Color Rexar 1:2,8/45”. The snapshot camera has no autofocus. Therefore you have to focus by hand.
The Porst KB 100 has a built-in light meter. The selenium light meter works without batteries. Nowadays, the light meter may have stopped working.
The camera has a bulb setting. An external flash can be connected via hot shoe. In the Porst KB 100 is a thread for a tripod built-in. In addition, there is a connector for a cable release and a self-timer.
The dimensions of the Porst KB 100 are 12,5 x 8,5 x 7 cm. It brings 350 grams on the scales.
Films for the Porst KB 100
The Porst KB 100 uses 35mm film. The 35mm format is the most common film format. Therefore, some manufacturers still produce for this format. Possible films for the Porst KB 100 are the Kodak Gold 200* for color shots and the Kodak T-Max 100* for b/w photos.
Value of the camera
Porst KB 100 is a 35 mm camera that is no longer manufactured. It is a used product that is available on the market. The price depends on the condition of the camera and the accessories that come with it. If the camera is in good condition and all accessories are present, the price may be higher than for a used camera without accessories.
Collectors and photography enthusiasts value the Porst KB 100 as a classic piece of photographic technology. If the camera is in good condition, it can still produce high-quality images.
Technical datasheet
| Attribute | Specification |
|---|---|
| Type of Camera | Viewfinder camera |
| Film format | 35mm |
| Film transport | Manual |
| Picture format | 24 mm x 36 mm |
| Focal length | 45 mm |
| Widest aperture | f/2.8 |
| Focus | Manual |
| Exposure times | 1/300 second to 1/30 second, Bulb |
| Bulb mode | Yes |
| Light meter | Selenium light meter |
| Auto DX (Film sensitivity) | No |
| Built-in flash | No |
| Flash Connection | Hot Shoe |
| Tripod mount | Yes |
| Cable release thread | Yes |
| Self-timer | Yes |
| Size | 12,5 x 8,5 x 7 cm |
| Dimensions in inches | 4.92 x 3.35 x 2.76 inches |
| Weight | 350 Grams |
| Company name of the brand | Photo Porst |
| Manufacturer | King |
| Estimated value / Used price | 43,92 Euro Estimate based on used prices of 4 offers (possibly with different scope of delivery and/or condition). As of June 15, 2026 |
| Average used price in the year 2023 | 37,43 Euro (40.05 US-Dollar) |
| Average used price in the year 2024 | 36,00 Euro (38.97 US-Dollar) |
| Average used price in the year 2025 | 41,62 Euro (44.38 US-Dollar) |
FAQ about the Porst KB 100
Is the Porst KB 100 camera easy to use for beginners?
The Porst KB 100 is a rangefinder camera, meaning you manually focus the lens. It doesn't have autofocus, but it's relatively simple to operate once you understand the manual controls. The built-in light meter helps determine the correct exposure.
What kind of film does this old camera take?
The Porst KB 100 uses standard 35mm film, which is still widely available. You can find both color and black and white film for it. Each roll typically holds about 36 exposures.
Can I use a flash with the camera?
Yes, the KB 100 has a hot shoe for connecting an external flash. This lets you take photos even in low-light conditions. Remember that you'll need to set the flash settings manually.
Does the camera have a built-in light meter?
Yes, it has a selenium light meter which is battery-free. This means it doesn't require batteries to function, although it might be less accurate in its old age.
How much does the Porst KB 100 usually cost?
The price varies greatly depending on its condition and any included accessories. A well-maintained camera with all its parts might be more expensive than a damaged one. It's a collectible, so prices can vary considerably.