A couple from a newly acquired C/Y 28/2.8. My initial impressions are that it resolves a hair less detail centrally than my G28, though on NEX the edges might be a bit better with the C/Y. I also feel for some reason that it has less DoF than I'd expect at a given aperture. I know some have described that to be the case with the Contax 28/2 and it's heavy FC, but I thought the 28/2.8 was supposed to have a pretty flat field.
Cheers mate, I was running in MM setting F8, ISO100 and using the IR remote. Opening the shutter and timing with my iphone 20sec, 30sec 40... etc until the exposure was right. It's a bit fiddly with focusing up and composing the shot without the filter, adding the filter and getting the phone out.
Oh well ill keep practising. I was using an iphone app to calculate exposure but it was always under exposing the images, maybe this was a FF app.