My Favorite Film Processing Table [Not the massive dev chart]

trittium

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I just wanted to share with everyone my favorite film developing calculator. Tons of film choices, tons of chem choices, and click of a button push and pull dev times. Really great. The only negative attribute is that it is in German. None the less, it is still very easy to use and figure out.

http://www.phototec.de/e_rechner.htm

I hope this helps.
 
Very neat, but don't trust it. For Tri-X in Emofin it quotes 5min 17sec for normal contrast using 3 sec inversions at 20 deg . This is my normal film/dev combination and I use 3min 30 sec. 5 min 17 sec would give me nearly black negatives.
 
Using any chart or recommendation, the smart thing to do is shoot a roll with half stop brackets in multiple lighting situations, try the developer's own suggested time and/or the chart, inspect closely with a loupe, see which frames look best in which situations...look at highlight and shadow detail.

My outdoor light is usually maximum contrasty...desert, 5,200'..I want go0d highlights and shadow detail...my chosen ei/processing would logically be expected to be different from some European's, shooting at sea-level with a usually-overcast sky...

If I wasn't scanning/inkjetting (which likes normal and low contrast negs) I'd probably want a more contrasty neg in Germany than here...but Emofin doesn't readily produce contrast, in my experience...so maybe I would follow the chart... I don't know modern TriX, but doubt the German chart time would produce a black neg (I like Emofin 6/6 with Neopan 400, rating normally at 800-1600 (meter @800, be very happy with a stop less when I want faster shutter).. but I'm divorcing everything for R-09, 1:80, true stand processed one hour).
 
charjohncarter said:
I like that format, is there an easy way to know what 'Berechnete Zeit' means?

The small print to the side of the calculator says something like:

"This calculator is based on data of the film and dev manufacturers involved. Times for different temps, gradations and agitation-patterns are calculated according to a mathematic model."

It looks like the 'base time' is for 20°C, G=0.62 and agitation of once per minute, and this is displayed in the top-box. If you choose another temp, gradation and/or agitation pattern, this is displayed as Berechnete Zeit.

Herzliche Grüsze,

Dirk
 
eric rose said:
very cool. but in the darkroom I use my Palm Pilot. I have the Massive chart downloaded to it. Very handy.
😱

I remember this individual who liked to change his filters while the light on the enlarger was on while being on his cellphone.

I hope your Palm Pilot screen is faint in there.

Thanks, btw, Matt.
 
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