The Silberra U400 is a black and white film. It comes from the supplier Silberra from Saint Petersburg, Russia and was available for purchase as of 2018.
The Silberra U400 is a film for black and white photos. It belongs to the genus of superpanchromatic B&W films. It is specified that the sensitivity of the film is ISO 400.
With appropriate adjustment of the development time, the film can be exposed in a sensitivity range between ISO 800 and 200. Thanks to its sensitivity, this film can be used universally and provides reliable results in many situations.
Developing the film
It is necessary to develop the U400 film in a black and white developer to achieve the desired result. Black and white development can also be done at home, provided the proper equipment and chemistry are available. Alternatively, the film can be taken to a developing lab. The step of choosing a film developer is an important aspect of film processing.
Development times
| Developer | Dilution | Developer / Water | ISO | Time | Temperature |
|---|---|---|---|---|---|
| Ilford Perceptol | Stock | 400 | 12:00 min | 20°C / 68°F | |
| D-76 | 1+1 | 400 | 10 min | 20°C / 68°F | |
| D-76 | Stock | 400 | 7 min | 20°C / 68°F | |
| HC-110 dil. B | Stock | 400 | 5 min | 20°C / 68°F | |
| XTOL | Stock | 400 | 5:30 min | 20°C / 68°F | |
| R09 One Shot | 1+50 | 400 | 7:30 min | 20°C / 68°F | |
| Rodinal | 1+50 | 400 | 7:30 min | 20°C / 68°F | |
| Adonal | 1+50 | 400 | 7:30 min | 20°C / 68°F | |
| Silberra Aphenol | Stock | 400 | 5:30 min | 20°C / 68°F | |
| Silberra S-76 | Stock | 400 | 7 min | 20°C / 68°F | |
| Silberra S-76 | 1+1 | 400 | 10 min | 20°C / 68°F | |
| Silberra RDN-LQ | 1+50 | 400 | 7:30 min | 20°C / 68°F |
Calculation of the development solution
How much development solution do you need?
Source
Development specifications from the manufacturer for the film are not provided to all developers. If a developer is still used, you can test a small portion of the film with different development instructions. The result of the development are film strips with the captured images.
In the next step, the images can either be printed as prints or scanned for digital applications. Many developing labs offer directly as a service the possibility to make prints in different sizes.
It is possible to digitize analog film strips with a scanner to obtain digital images. For this purpose, there are various devices, including document scanners, that can be used to digitize negatives. The digitized images can then be easily shared on social media or printed in various formats.
Availability and Alternatives
You can buy the U400 for 35mm format only. With one copy of the film, you can take 36 photos. Suitable 35mm cameras for exposing the film are available in large numbers. Manufacturers like Rollei, Mamiya or Kodak offer corresponding camera models.
If you are looking for an alternative, the Ilford Delta 400* would be a possibility.
Technical datasheet
| Attribute | Specification |
|---|---|
| 35mm Format | Yes |
| Development process | Black and white developer |
| Release date | 2018 |