yes, i've done wonderful 20 by 30 from costco. unfortunately, you have to give them jpegs. still, at the price (10 dollars) they're great and i've given them as presents and sold one. it's really a great way to impress at least your friends. also, i adjusted them in photoshop. if i had photozoom or genuine fractals, i've no doubt they would be even better.
here are a couple more from this same afternoon. it's always worth going back and see if you can wring something out of what you took. that way the day doesn't seem wasted.
i did send for the lensmate adapter, as they say eliminating the ring adapter will eliminate a lot of distortion and chromatic aberration. working on these i see the drawbacks of the oem. i'll let you know if the lensmate improves things.
i'm convinced this is one of the best b&w cameras out there. (though the prints i've had made in color. the files very pliable.)
wayne
www.pbase.com/pbase
ps. the barnack photos did get accepted. you can see them at
http://www.leica-oskar-barnack-award.com/#/en/contest/oskar-barnack-award-2010-entries/pease/1 very exciting for me. your help invaluable.