Hi, I don't know who Frantisek was quoting, but I know he responded to the following:
Frantisek Vlcek wrote: > vvn> 20/4 Carl Zeiss Jena (77mm filter). Not as sharp as the later 20/2.8 (which > vvn> shares the basic optical formula with the Pentax 20/2.8), But, I have read that the Ziess Jena f4.0 20mm is in fact sharper than the 2.8, and that despite being slower, the 4.0 is the preferable lens, due to it's sharpness. I have no personal experience, but I'd be interested in hearing from anyone who does, being that I'm always on the lookout for an ultra-wide (for the right price, of course <g>). thanks, frank > -- "The optimist thinks this is the best of all possible worlds. The pessimist fears it is true." -J. Robert Oppenheimer - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
