There is no doubt that film development is a fundamental step. Each film can only be developed once. The better the development is done, the more stable the foundation on which excellent copies can be made with the film. JOBO has developed a SW developer in co-operation with chemist Klaus Wehner. Laboratory tests have shown that the JOBO alpha developer allows full utilisation of the film speed and is still characterised by a high level of fine grain and sharpness.