Besides the technical aspects of resolution and grain there is another imho much more important factor that hasn't been discussed so far: the tonal characteristics. TechPan has a completely different look as f.e. Copex rapid or CMS. They are absolutely uncomparable in this regard. Copex is othopanchromatic and TechPan is slightly superpanchromatic. The look is very different. You may like it or not. How can you ignore this most important point? Do you count grains or do you want to create images?
And yes, I'm referrig to the "real" Technical Pan made by Kodak and not the recent "advanced" wannabe. And if you count linepairs lp/mm, please count them at low contrast (1:1.6 not 1:1000!) and see how some high resolving films outperform any "regular" film hands down! That's what really matters. No big name lenses needed to show that.
Best - Reinhold
PS: a picture tells more than 1000 words. Left Minolta XA, TechPan EI50 in Technidol -> sharpness at f/22. Right Minolta Maxxum 5, Sigma 28-80, TechPan EI50 in Caffenol-C-L -> tonality at high subject contrast.
Last edited by grommi; 12-09-2012 at 10:48 PM. Click to view previous post history.