SMC Pentax 28/3,5

This lens said to be tack sharp wide lens from Pentax.

see picture below to know the sharpness

crop 100% from picture above

Leitz Wetzlar Elmarit R 90/2,8

I had a chance to took Leits Elmarit 35mm and 90mm in about same price. I choose this lens. The lens was in higher price before. It was crossed to my mind to bought Voightlander 90/3,5 in same range of price. Then the seller lower the price of elmarit 90mm so that I couldn't refuse to bought it. Now, I'm not regret my decision. It's a great lens.

wide open

Sharp wide open

Purple fringing appear on strong light BG

sample on NEX5