Digital BW, The Print

On 06/07/2010 Michael wrote:
> "The question I have is how do I best evaluate - on screen -
> scans of the same frame made at two different resolutions?" 

I think you are into territory where the answer is simply "experience" 
through doing it. There are no objective methods because the concept of 
quality is fuzzy, and as you say, interpolation will confuse matters. Like 
comparing 6x6 negs with 35mm, it's a matter of "good enough" by whatever 
your personal standards are. I found comparing both images at 100% was 
quite good enough for comparing scanners of different resolutions, usually 
investigating differences and artifacts at higher and lower mag.
-- 
Regards

Tony Sleep
http://tonysleep.co.uk