The Panasonic C-310EF is a 35mm snapshot camera that was offered by Panasonic and was also sold under the name National C-310EF.
It is almost identical to the Panasonic C-300EF model, but differs in the way it activates the flash: while the flash on the C-300EF switches on automatically in poor lighting conditions, on the C-310EF it is activated manually using a switch.
Technical characteristics
The camera has a fixed lens with a focal length of 38 mm and a maximum aperture of f/5.6. The focus is fixed and cannot be adjusted, nor can the distance to the subject.
The C-310EF has no light meter and offers hardly any setting options. Only the film sensitivity can be switched between ISO 100 and ISO 400. The shutter speed is constantly set to 1/50 second.
A built-in flash, which is powered by two AA batteries (eBay / Amazon*), provides sufficient lighting. The batteries are only needed for the flash function.
The camera does not have a tripod thread. There is also no self-timer. However, a camera strap can be attached to the camera.
Film selection and development
The Panasonic C-310EF is designed for use with 35 mm films, which can still be produced and developed today. Suitable films include black and white film Ilford Delta 400* or color negative film Fujifilm Superia 400*.
Color negative films are developed using the C-41 process, which is offered by many photo labs and drugstores. The negatives are 24 mm x 36 mm in size.
Since the camera does not have an automatic film transport, the film must be wound manually after each shot. A thumbwheel on the back of the camera is used for this. At the end of the film roll, the film is rewound into the cartridge using a crank.
Technical datasheet
| Attribute | Specification |
|---|---|
| Type of Camera | Snapshot camera |
| Film format | 35mm |
| Film transport | Manual |
| Film transport mechanism | Thumbwheel |
| Picture format | 24 mm x 36 mm |
| Focal length | 38 mm |
| Widest aperture | f/5.6 |
| Focus | Fixed |
| Exposure times | 1/50 second |
| Date imprinting | No |
| Double and/or multiple exposure function | No |
| Flash | Integrated flash |
| Tripod mount | No |
| Cable release thread | No |
| Self-timer | No |
| Connection for camera strap | Yes |
| Power supply | 2x AA batteries |
| Estimated value / Used price | 20,00 Euro Estimate based on used prices of 11 offers (possibly with different scope of delivery and/or condition). As of June 15, 2026 |
| Average used price in the year 2024 | 16,00 Euro (17.32 US-Dollar) |
| Average used price in the year 2025 | 16,65 Euro (17.32 US-Dollar) |
FAQ about the Panasonic C-310EF
What type of film does the Panasonic C-310EF use, and is it still readily available?
The Panasonic C-310EF uses standard 35mm film. These are still widely available and developed in many labs.
How is the flash activated on this particular point-and-shoot camera model?
Unlike some similar models, the C-310EF's flash is manually activated via a switch, not automatically.
Does the camera offer any exposure adjustments, such as aperture or shutter speed control?
No, the camera has a fixed aperture of f/5.6 and a fixed shutter speed of 1/50th of a second; it lacks an exposure meter.
What kind of focusing system does the 38mm lens have?
The camera features a fixed-focus 38mm lens; it does not have any auto-focus or manual focusing capabilities.
Can you explain the film advance mechanism on this simple camera?
Film advance is manual; after each shot, the user must manually advance the film using a thumb wheel. Rewinding is done with a crank.