After a night sleep I'm back to zero. The dust is gone, and my self esteem is too. I'll do some shooting, and se how it performs.
Now I'm off to Oslo for a week on vacation :-) Behave while I'm away, folks ;-) And one more time. Thank you for all constructive suggestions. 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 09:39 > To: pentax-discuss@pdml.net > Subject: Re: My new Macro - a lemon. > > Yes, it must be frustrating - but you can prevent the focal length change > by > taping or gluing the focusing ring so that it will not move. > All the best! > Raimo K > Personal photography homepage at: > http://www.uusikaupunki.fi/~raikorho > > > ----- Original Message ----- > From: "Tim Øsleby" <[EMAIL PROTECTED]> > To: <pentax-discuss@pdml.net> > Sent: Saturday, October 29, 2005 1:54 AM > Subject: RE: My new Macro - a lemon. > > > <snip> > > 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. > <snip> > > 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: pentax-discuss@pdml.net > >> 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: <pentax-discuss@pdml.net> > >> 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: pentax-discuss@pdml.net > >> >> 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 > >> >> > >> >> > >> > > >> > > >> > > >> > > >> > > > > > > > > >
