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Messages 641 to 650 of 653 (Total: 653) First | Prev | Next | Last
Subject 
Author 
Date 
LuX-Second Conversion 
Eino Lilback  13:38 23 Sep 02 
Re: LuX-Second Conversion 
Phil Davis  18:18 23 Sep 02 
film speed adjustment 
phil sweeney  11:50 16 Sep 02 
Re: film speed adjustment 
Phil Davis  20:30 16 Sep 02 
Re: film speed adjustment 
phil sweeney  13:15 23 Sep 02 
Re: film speed adjustment 
Phil Davis  18:25 23 Sep 02 
Personal speed point calibration test 
David Rude  22:18 8 Sep 02 
So I've read the article on choosing a personal speed point and I understand it and all but I have a question. Are there other film/developer combinations that you can use to calibrate your testing setup? The article recommends Delta 100 in D-76 or Xtol but I don't use Delta 100 and it seems a waste to buy a whole box just to run 2 or 3 calibration tests.

From the Plotter film test samples I've noticed that TMX in DDX seems to produce an ISO speed point marker that aligns with 2.4 as well. So can this combination be used to calibrate my testing setup? Can we use this criteria, that given your calibrated library of tests, we can choose any combination that naturally produces an ISO speed point marker near 2.4 and use this as our calibration test?

David
 
Re: Personal speed point calibration test 
Phil  8:39 9 Sep 02 
Film testing with Zone VI cold-light enlarger 
David Rude  20:59 8 Sep 02 
Re: Film testing with Zone VI cold-light enlarger 
Phil  21:01 8 Sep 02 


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