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Rollei Low-Speed And High-Speed Film Developers

The following development times are approximate and intended only as guidelines for individual optimization. They hold for a gamma of 0.65 that is considered appropriate for diffused-light enlargers. In view of variations in individual processing technique, the values should be optimized to suit your own personal requirements.

Due to the unique structure of ROLLEI R³, the developer has a strong effect on film speed, grain and acutance. Proper selection of developer and development time allows control of effective film speed over a previously unknown wide range. ROLLEI R³ is particularly well-suited for low-light photography.

With proper processing, the effective speed of the material can be pushed up to ISO 6400/39° and more. This will inevitably result in coarser grain. The diagram at the bottom illustrates the development times for ROLLEI R³ HIGH SPEED DEVELOPER in graphical form and allows the derivation of intermediate values.

The following developers are highly recommended:

Desired effect Developer
Finest grain and optimum tonal rendering ROLLEI R³ LOW SPEED
Highest film speed
optimum sharpness
Standard for good image quality,
and normal speed
Any commercial fine-grain compensating developer

This is where the special features of ROLLEI R³ come in.

By proper choice of the developer, the user has unprecedented control over the result.

Experience has shown that photographers' first trials of Rollei R³* frequently were unsatisfactory.This is why we would like to provide some basic information directed at both photographers and darkroom technicians: The new ROLLEI R³ is a multilayer film. It therefore calls for comparatively strong exposure if it is to be processed in a professional laboratory instead of by the photographer.In "home" processing, prewashing is essential. ROLLEI R³ will give unsatisfactory results if development was too short in relation to exposure.

The following should therefore be noted: Too short a development will give rise to very coarse grain and very thin negatives - in short, an unsatisfactory result. If development was - within certain limits - too long, however, no photochemical drawbacks will be encountered, except perhaps for steeper gradation and, as a result, minimization of the extremely rich tonal rendering.

* even if well-experienced

Development-time table

Unless otherwise noted, the development times suggested apply exclusively in conjunction with the prewash suggested and inverting cycles of 30 s.

Developer Meter set to ISO Min. development
time in minutes
Rollei R³ HIGH SPEED 1+7 100 9 - 13
200 10 - 14
400 11 - 14
800 14 - 18
1.600 18 - 22
3.200 23 - 26
6.400 29 - 32
Rollei R³ LOW SPEED 1+4 25 20 - 22 (24°C)
50 21 - 23 (24°C)
100 22 - 24 (24°C)
200 23 - 25 (24°C)
Kodak D-76™ 200 10
400 14
Kodak HC-110™ Dil. B 400 14
Kodak Xtol™ 1+2 200 to 400 24 - 29
Ilford ID-11 400 14
Ilford Perceptol 200 14
Champion Promicrol 1+14 400 14
400 10 (24°C)
1.600 21
1.600 15 (24°C)
Champion Promicrol 1+9 400 10
400 6.5 (24°C)
1.600 14
1.600 9.5 (24°C)

Temperature and processing time

To obtain consistent results, it is generally advisable to run all processes at the same temperature, usually 20°C. Should it become necessary to use type D76 or ROLLEI R³ HIGH SPEED developer at a different temperature, use the correction values below, unless other data are available.

20CNo correction
21C- 5%
22C- 10%
23C- 15%
24C- 20%
25C- 30%