Hi Dario, yes I get that feeling too sometimes. I usually have a pile of tools and camera parts on my worktable that often becomes the first "subject" after I clean/repair a lens. This first test often turns out very nice, when the same lens goes outside for a better test it sometimes fails miserably. Though I have no idea why this happens I have seen it quite often. I suspect in some cases the more contrasty outdoor light causes flare and internal reflection issues to become very obvious, resulting in a very poor, soft, image.
Don > -----Original Message----- > From: Dario Bonazza [mailto:[EMAIL PROTECTED] > Sent: Tuesday, September 06, 2005 5:34 AM > To: pentax-discuss@pdml.net > Subject: Are most lenses optimised for short distance focusing? > > > Hi all, > > In my experience, it is not uncommon that lenses perform better at close > distances than at infinity. Of course, when focusing at infinity > you have to > consider that haze, smog, etc. will lower the resolution > performance of any > lens... however, even leaving aside macro and close-ups, I've got the > impression that many wide/standard lenses perform better at say > 5m than when > focused 100m and beyond. This looks especially true with budget > lenses. Has > anyone else had this same feeling? > > What focusing distance do you think most lenses are optimised for? > > Dario >
