Joe, My experience with the FA 20/2.8 on the *istD is good. On 35mm film, the lens has a problem with droplet distortion towards the corners, which reduce sharpness of course. With the digicrop this is very much reduced. I haven't looked meticulously close, but so far I haven't seen any droplet symptoms.
Jostein ----- Original Message ----- From: "Joseph Tainter" <[EMAIL PROTECTED]> To: "pdml" <[EMAIL PROTECTED]> Sent: Thursday, November 25, 2004 6:43 PM Subject: Re: *ist Ds + A20/2.8 or 24/2.8 - will it work? > "...the A20/2.8 goes pretty mushy in the corners...." > > Hmmm. This is the first negative comment I have seen on this lens. I > have ordered the FA 20 f2.8, which has the same optical formula, based > on rave comments and an online photo showing good sharpness at f2.8. > Well, come to think of it, that image had good center sharpness. The > edges were out of focus. I do hope I haven't made a $500 mistake. > > Rob, can you clarify at which f-stops you've noticed corner mushiness? I > will be using this lens indoors, mostly at f2.8, on the D. > > Joe >
