i am hesitant to say whether it is a generic problem to the FA 24 f2.0 or not. i have seen only a few other shots identified as taken with the model of lens and there didn't seem to be any chromatic abberation in them, but they were not of the kind where it would be very visible. i haven't been keeping track of my film shots either that would be taken that way. i think it boils down to how much contrasty lines are in the corners of the image. if the corners are not so contrasty, the abberations are not as apparent.
the Sigma 15-30 is of the build quality of other Sigma lenses. don't expect it to do too well if it gets a serious knock. it's all plastic except for a few parts besides the lens elements themselves, and some parts feel like they are lighter than on many Pentax lenses. optically, it's a softer lens than the FA24-90 or the FA* 24. it's my softest lens, in fact. although i haven't done a film comparison with my FA 80-320. on a film camera, the corners are just way too soft, so i try to put relatively solid tones at the corners like skies and shadows. on the *istD, it's a decent lens and it is performing better than i feared it might. it's a good match for a 6 megapixel camera in terms of quality and focal length if you tend toward the wide side. it's not a small lens though. Herb... ----- Original Message ----- From: "Bruce Dayton" <[EMAIL PROTECTED]> To: "Herb Chong" <[EMAIL PROTECTED]> Sent: Wednesday, December 03, 2003 10:07 PM Subject: Re[2]: *ist D and FA *24/2 > Herb, > > Are you thinking that perhaps this is just a problem with your sample > and Alan's or indicative of the lens in general? > > How happy are you with the optical and build quality of the Sigma > 15-30? I have been reading some rather negative reviews of the Sigma > 17-35 and was wondering if you are really happy with your particular > wide zoom.
