I have been a little confused obtaining photos made with EOS IX with kit
lens (28-80 EF). It was unclear for me, what was the reason and I thought
it
must have been the film size.
Fortunatelly I have changed lenses for 50mm, 19-35, 135mm and I must say
things changed. The photographs are sharp and there are no trace of blurr.
So I recon, the best result is going to occur while using APS-C lenses
rather then standard.
Wojtek