Thank you for responding Godfrey. You are right, although the spec is not dust. I think it is a paint chip. It is black, it is near the edge of the lens, and it is just big enough to see that the chip is in the shape of a triangle. I have not seen any degradation in my results using this lens, but then I have not enlarged any photos from this lens either.
I guess my real issue is I now have a lack of confidence in the lens. I was actually thinking of using the lens to photograph an out of focus light table and see if I can get the defect to show up. Again, thank you for your insight. Village Idiot > A speck of dust won't hurt anything. I am much more bothered by the thought > of > taking a lens apart to clean a speck of dust and then reassembling it without > having a collimator handy to be certain that all the elements are properly > centered than I am by a speck of dust. > > Godfrey > > > On Mar 24, 2005, at 8:23 AM, Village Idiot wrote: > > My very first lens, a Pentax 50mm F2 that came with my new ME Super some 23 > years ago, has a black spec inside that is just big enough to see that it is > triangularly shaped. I have never had anything in any of my lenses before, > so I > am at a loss as to how to save my lens. In this regard, I have a couple of > questions. > > How much does it cost to have a lens taken apart and cleaned by a repair > professional? > > Is it possible for an amateur, like me, to take apart a lens, clean it, and > put > it back together in working order? > > What are the tools and steps needed for me to clean this lens properly? > > Thank you in advance for your help. > > Village Idiot > > > > >
