----- Original Message -----
From: "Boris Liberman"
Subject: Questions re Pentax made lens filters
Hi!
For some time I've been using el cheapo (Cokin plastic et al)
protective filters on my lenses. Some time ago I stopped doing so.
Then recently I found that some of my lenses are now dusty inside.
Then on eekBay I found that there are Pentax made lens filters. Some
of them are even SMC.
Are they worth it? How do they compare to other manufacturer's filters?
Finally, but please don't let it be a flame, if not Pentax, what are
the protective filters that match optical quality of lenses such as FA
50/1.7 or M 50/1.4 that I have?
Then of course as usualy I may be nuts again... I mean may be filters
have nothing to do with dust inside lenses...
I don't keep protective filters on my lenses unless I am putting the front
of the lens at some risk by not doing so.
However, I do keep some protective filters around in case I want one.
My preference for filters has always been B+W.
I think they make 2 lines now, one with aluminium rings, the other with
brass. The brass ones won't weld themselves onto the front of the lens.
I've never been concerned with the quality of the glass they use.
I don't think a filter will keep dust from getting into a lens.
William Robb
