Jobo Tank Roller Base 1509

Roller for Jobo-developing tanks, adjustable for different tank sizes and can be used with tanks by most makers.

If you rotate a Jobo tank the chemistry needed is significantly less. For example in a 1510 tank (one 35mm film) you need 140ml in rotation vs. 250 ml for a standard inversion development.

You gain evenness in developer action and you save on the amounts used but you do lose the possibility to control the contrast by changes of the inversion intervals and intensity when processing black and white.

Handy for constant agitation B&W however for hand processing colour the advantages are clear.