Tetenal Parvofin tablets (10 tabs) darkroom with clean glass and a

with clean glass and a good shutter

and so will not autofocus on D3xxx

Lensmate advises against using this with an X100F

and a clean Carl Zeiss Planar 80mm f2

for many C-type lenses

Tetenal Parvofin tablets (10 tabs) darkroom with clean glass and aTetenal's Parvofin is a fine grained black and white developer designed for easy storage and transport. Parvofin is packaged as dissolvable tablets, and each jar contains 10 A+B tabs, to process 10 rolls of film in a standard Paterson tank (or 20 rolls in a Jobo). Unlike ordinary powder developers, you can mix up only as much as you need for the quantity of film you're developing, without any messy measuring or portioning. And unlike liquid