BTZS.org >> Forums home page
 
 Film & Paper Testing
 Film & Paper Testing Discussions

Announcements | General Discussions | Plotter | ExpoDev Palm | Film & Paper Testing | Practical BTZS | ExpoDev for iOS



 
Messages 381 to 390 of 653 (Total: 653) First | Prev | Next | Last
Subject 
Author 
Date 
Re: light source issue 
Phil Davis  9:15 23 Apr 05 
Re: light source issue 
Miles Nelson  7:12 24 Apr 05 
Re: light source issue 
Phil Davis  7:48 24 Apr 05 
Re: light source issue 
Miles Nelson  8:39 24 Apr 05 
personal speed reference point 
Miles Nelson  4:57 19 Apr 05 
Re: personal speed reference point 
Phil Davis  7:13 19 Apr 05 
Re: personal speed reference point 
Miles  12:25 19 Apr 05 
Plus X Aerographic Film Testing 
Mike Pry  17:59 11 Apr 05 
Re: Plus X Aerographic Film Testing 
Phil Davis  19:34 11 Apr 05 
Re: Plus X Aerographic Film Testing 
Mike Pry  3:29 12 Apr 05 
Phil,
I understand now about the PSP being the benchmark on which we measure from. That is a constant. What I am still confused about is the ISO of the film. I am assuming the ISO of 125 to be the pictoral ISO due to the non aero designation (I will call Kodak today to try and clear this up). So, if I have exposed the film (one sheet) to an EV of 2.67, because 3.0 is my PSP benchmark, and I still have so many clear steps, do I go ahead and do a test of the entire family to see where it all falls in spite of the number of clear steps visible at the 8 min. dev. time? I only did one as I'm in very unfamiliar waters due to the nature of this material and in retrospect perhaps I should've done the entire family from the start. I'll send you the curve offline and maybe you can comment on that as well. Also, does a Bplus fog of .14 indicate fogging? I am serious about a careful examination of this film due to not only the cost savings in 8/10 but it's usage in the ULF camera formats.
 


BTZS.org >> Forums home page
 
 Note: The BTZS.org forums are now in read-only mode Last Updated: 22 Aug 2002