Omg, the beauty of using older lenses !! I think what I'm getting addicted to (and I would assume many of us similarly), is not so much the output, but the sheer way legacy glasses changes the whole photographic process (especially on the NEX). I'm basically an aperture mode shooter. I love the convenience of auto ISO when noise is not an object (it's definitely not one on the 5N). I use exposure compensation very liberally. I need fastcd reliable AF as toddlers and animals are my primary subjects. I'm trigger happy and tend to make about 1K pictures/a month. Well, all of that is upside down with legacy glass. For reliability and convenience, I switched to fixed ISO and Manual mode (I find exp comp a little finicky on the NEX compared to the ease of the GX-1), and manual is much more straight forward. Manually focusing imposes a slower and more thought rythm, and I do believe slowing down is very beneficial for the digital shooter, who has either never had, or lost, film habits. Right now I'm building up a lens collection and have gathered the following, some of which are already for sale, some not delivered yet : CCTV 35/1.7 FD 50/1.8 (for sale) FD 135/2.5 (for sale) OM 50/1.8 (haven't tried yet due to pending adapter) OM 50/1.4 (to be delivered) OM 100/2.8 (to be delivered) I WtB a PEN F 38/1.8 as a slightly longer than normal prime. I've also tried an Auto Reflecta 55/1.7 before (which was pretty good). All in all I've never shot (other than making sure it works) the SEL18-55 that I bought as a travel lens.