Take good care of your lenses. Clean them only when necessary with a microfiber cloth and an oil removing spray. Watch for fungus or other serious problems. But don't torment yourself with flashlight exams. It's pointless and counterproductive. Paul On Oct 30, 2006, at 7:34 PM, Eugene Homme wrote:
> One of those inexpensive blue LED flashlights works even better to > show up > dirt, dust and haze. If you want to scare yourself silly sometime, > shine > one of those into a lens you thought was clean. > > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On > Behalf Of > Brian Dunn > Sent: Monday, October 30, 2006 7:05 PM > To: [email protected] > Subject: See inside your lens > > > >>> when I looked at >>> the rear element one last time - and it was crystal clear. No >>> evidence >>> of damage at all. > > > Take each of your lenses into a dark room with a flashlight, open > the lens > to > a full wide aperature, and shine the flashlight through the lens > while you > look into the other side. Try it both directions. You'll see all > kinds of > little bits of dust and such. If there is much of a haze, you'll > see it > too. > You'll also see front or rear elements which have a cleaning film > on them. > Compare the lenses to see which seem to be worse than the others. > > > Brian > > > -- > > Brian Dunn Photographic > http://www.bdphotographic.com > > -- > PDML Pentax-Discuss Mail List > [email protected] > http://pdml.net/mailman/listinfo/pdml_pdml.net > > > > -- > PDML Pentax-Discuss Mail List > [email protected] > http://pdml.net/mailman/listinfo/pdml_pdml.net -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
