Quote Originally Posted by Pfiltz View Post
I am shooting Arista, I just haven't found one for it... I figure I might get close, to proper exposure even if it's not for Arista per se. Beats what I did yesterday...

Just found this..

http://www.largeformatphotography.in...Arista-edu-100

and

http://www.freestylephoto.biz/pdf/Ar...eciprocity.pdf

The way I read the Freestyle info, is that I should adjust using aperture -vs- time?
Although we tend to think in terms of longer shutter speeds when we consider reciprocity failure, the actual cause for that type of reciprocity failure is that the light that actually reaches the film is at a very low intensity. If you can increase the intensity of the light reaching the film, by using either more light on the scene or a larger aperture, the reciprocity may not fail.