Gralab Darkroom Timer Model 300  type_Instant Black & White idea for ultrawide lenses but

idea for ultrawide lenses but usable on any lens

Before you mash that "buy" button

with framelines for 28/90 and 35/135mm lenses

The Tamron TAP-in console is a computer-connected puck that interfaces with select Tamron lenses and allows you to update firmware

and an 80-slide tray

Gralab Darkroom Timer Model 300 &nbsptype_Instant Black & White idea for ultrawide lenses butIt seems that Gralab calls every timer the "Model 300," because this Model 300 is clearly not the classic all black Model 300. It's smaller, for one, with a grey plastic shell and a moulded in carry handle. Functionality is effectively identical to the big timer, though. Aside from some cosmetic wear, this timer is in pretty solid shape, and working well.