It is a spec, on f5,6. If you look closer at the same spot you will see it. At f8 it is clearly visible, take my word for it ;-) And it is more visible for every step up to f32 :-(
I have located it in the glass. It seems to be in one of lenses closest to the camera body. It's there. And it frustrates me. And there is this with the focal length changing. That too is visible in the test shots. It's just a couple of degrees change in angle of view, but this to makes me sceptic. If the seller had told me about it before the transaction, it would have been completely different issue. He didn't. Am I just being an arse on this? Think of myself as "Mostly harmless" ;-) 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: Raimo K [mailto:[EMAIL PROTECTED] > Sent: 29. oktober 2005 00:33 > To: [email protected] > Subject: Re: My new Macro - a lemon. > > OK - there was a speck in one image but not on the others. Maybe it is a > subject failure? > All the best! > Raimo K > Personal photography homepage at: > http://www.uusikaupunki.fi/~raikorho > > > ----- Original Message ----- > From: "Tim Øsleby" <[EMAIL PROTECTED]> > To: <[email protected]> > Sent: Saturday, October 29, 2005 1:19 AM > Subject: RE: My new Macro - a lemon. > > > > First test shots. Done in a hurry. Roughly converted > > http://www.flickr.com/photos/fototim/sets/1234555/ > > > > > > 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 23:33 > >> To: [email protected] > >> Subject: Re: My new Macro - a lemon. > >> > >> > >> ----- Original Message ----- > >> From: "Tim Øsleby" > >> Subject: RE: My new Macro - a lemon. > >> > >> > >> > As I say in a reply to WB: > >> > I haven't noticed change of focal length when focusing. It is when > >> > changing > >> > aperture. Is that normal too? > >> > > >> > My observation on the dust is simply based on what I see in my raw > >> > converter. I have no idea of the magnification ratio. On screen the > >> image > >> > is > >> > about 8 x 5 inches. The test shot was shot at about 20cm. It is > visible > >> > from > >> > f5,6, really disturbing from f8, horrifying at f16. I assume that it > >> fades > >> > out when opening aperture proves that it isn't sensor dust. > >> > >> I think you might consider showing us a picture of the glass, and dust > >> blob > >> in question. > >> And perhaps a few web images of how the dust spec is afecting things. > >> > >> Focal length should not change with aperture. > >> > >> William Robb > >> > >> > > > > > > > > >
