JOBO 9510 alpha B&W Developer & Fixer Kit 6L working solution

Discover our best black-and-white developer ever!

There is no doubt that film development is a fundamental step. Each film can only be developed once. The better this development goes, the stronger the basis on which excellent prints can be produced from this film. JOBO has engineered this B&W developer in cooperation with the chemist Klaus Wehner. Our laboratory tests have proven that the JOBO alpha developer allows full use of the film speed and is still characterized by a fine grain and excellent sharpness. The result is the best B&W developer that JOBO has marketed in its 100 years of history.

Full speed. Fine grain. high sharpness.

In the quest of improving current B&W film processing, JOBO went into cooperation with the chemist Klaus Wehner. Together we designed a film developer that, after numerous laboratory tests, allows full use of the film sensitivity and is still characterized by an excellent grain and great sharpness. The JOBO alpha is highly sophisticated and very ecological. To ensure the developer's shelf life, it is supplied in two parts - and mixed and diluted with water only for processing

As a perfect complement to the developer, JOBO also introduces the special JOBO alpha neutral fixer on the basis of natrium(sodium) thiosulfate. When the JOBO alpha developer has applied in combination with the JOBO alpha neutral fixer, the entire film process takes place in an alkaline to a neutral environment. This is the most gentle way of processing the organic film emulsion.  At the same time, the whole process is very environmentally friendly.

The JOBO alpha developer is specifically designed for rotary processing. Of course, it can also be used for inversion processing, but in rotary processing, it truly excels.