I was in B&H 3 yrs ago in a shopping trip.
Bought a lot and they opened a new lens for me to test a Sigma 70-200m APO non-macro.
Took a couple of quickie shots with my DL . And really there was not much chance of buying more as I had literally emptied my pocket.
And I found this image in my card 3 days later back to TO. Too late indeed. This was taken at 135mm F3.5 iso 800 inside B&H. I am sure my FA135mm is just impressive. But what a lens man
If you feel like counting hair of the subject, go for it
http://www.pbase.com/danieltong/image/74188404/original.jpg
Daniel