I did some test shots with my old Carl Zeiss Jena 29mm F2.8 lens I have, puchased quite some many years back. I used to use it in my purely mechanical camera days! Being Manual Focus and mounted on my Sony A700 with a M42 adapter, I had to get used to it after relying so much on Auto Focus nowadays! But the colours and contrast are great, with surprisingly good bokeh to boot. Only weakness is a slight softness around the corner edges, but nothing to worry about in normal print size. Sharpness in the centre is excellent though.