On 6 Dec 2004 at 0:00, jtainter wrote: > At f2.8 the Pentax lens blows away the Sigma. It is noticeably sharper in the > center, at the edges, and at the corners. And this is with the Pentax lens > wide > open while the Sigma is stopped down 1.3 stops. The FA 20 is a keeper and goes > into my kit. The Sigma goes back to where I borrowed it.
A friend of mine has the Sigma in Minolta mount, wide open it provides a text book example of mushy corners :-) > Incidentally, I shot the same subject with the DA 14. With both lenses at > f2.8, > the FA 20 is a far sharper lens. That's scary, my A15/3.5 blows the 20/2.8A away in the corners and in overall sharpness, I'll have to test them side by side again, maybe my 20mm is cactus? > The FA 20 has the same optical formula as the A 20 f2.8, which was introduced > in > 1985. As far as I can tell, this lens has neither ED nor aspherical elements. > Yet nearly 20 years later it continues to deliver top notch performance. Agreed, it seems the best option we have for that FL at the moment. Cheers, Rob Studdert HURSTVILLE AUSTRALIA Tel +61-2-9554-4110 UTC(GMT) +10 Hours [EMAIL PROTECTED] http://members.ozemail.com.au/~distudio/publications/ Pentax user since 1986, PDMLer since 1998
