Ralph Turner
Well-Known Member
I've started using a different caffenol recipe from my more usual 'C-H' variety, namely 'Delta'. It uses much less soda (albeit higher amounts of coffee and vitC) and no bromide, but still seems to leave very little if any base fog on 400 iso film (HP5+, Kentmere). I'm still fine-tuning dev times, but I'm liking what Ive seen so far, ie a touch less dense and contrasty, but still producing a good scan. Here are the quantities in grammes per litre previous/current - Soda 54/24, vitC 16/20, coffee 40/45. Using less soda and no bromide is good news for our septic tank drainage. (Image - Voigtlander Vio C, Ilford HP5+)