Developing B&W film

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Ornello
Posts: 863
Joined: Thu Jan 19, 2006 9:49 am

Developing B&W film

Post by Ornello » Tue Jun 05, 2018 2:52 pm

A useful item:

http://imaging.kodakalaris.com/sites/ua ... y/z133.pdf

Most important:

"0.58 is the contrast-index aim for printing negatives with a diffusion enlarger; use 0.43 if you will print negatives with a condenser enlarger."


pirateoversixty
Posts: 206
Joined: Sun Jun 18, 2006 1:21 pm
Location: Peoria, Illinois

Re: Developing B&W film

Post by pirateoversixty » Fri Jun 08, 2018 11:59 am

ornello:
my eyes glazed over before I finished the article, but aren't these procedures geared more for the lab(commercial) people? I'm sorry, maybe I zonked out before I got to the part about condenser/diffusion enlargers. also, I have not seen test strips for amateur bw use before.
jim

Ornello
Posts: 863
Joined: Thu Jan 19, 2006 9:49 am

Re: Developing B&W film

Post by Ornello » Fri Jun 08, 2018 1:50 pm

pirateoversixty wrote:
Fri Jun 08, 2018 11:59 am
ornello:
my eyes glazed over before I finished the article, but aren't these procedures geared more for the lab(commercial) people? I'm sorry, maybe I zonked out before I got to the part about condenser/diffusion enlargers. also, I have not seen test strips for amateur bw use before.
jim
Well, I don't know if Kodak still sells them. My point in posting this was to show that Kodak recommends less development for condenser enlargers. What's odd is that no further information is provided. What grade of paper? What lens? What brand of enlarger? All of these can affect contrast.

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