Haven't seen any traces of the dust at all with my Macro zooms when used close. So I don't believe it is sensor dust.
It is just one spec. But it is ugly, very ugly, and it is near centre of frame, disturbing. I'm wondering, what are the chances it will move to somewhere less disturbing? I haven't noticed change of focal length when focusing. It is when changing aperture. Is that normal too? Won't know what I've bought until I have tested it more accurate. Tim Mostly harmless (just plain Norwegian) Never underestimate the power of stupidity in large crowds (Very freely after Arthur C. Clarke, or some other clever guy) > -----Original Message----- > From: William Robb [mailto:[EMAIL PROTECTED] > Sent: 28. oktober 2005 21:53 > To: pentax-discuss@pdml.net > Subject: Re: My new Macro - a lemon. > > > ----- Original Message ----- > From: "Tim Øsleby" > Subject: RE: My new Macro - a lemon. > > > > The dust is visible in the captured image. I did a rough test shoot, and > > it > > was visible from 5,6 and up. > > I know I can't expect much of AF at close range. What bothers me is that > > AF > > hoovers from 2m to infinity. > > If you are shooting macros, it is quite likely that the dust you are > seeing > is on your sensor. > I mean really, how much dust are we talking about here? > > Macro lenses tend to change focal length when close focusing, and have > very > long focus throws. > > William Robb > >
