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 > >
