Are they screwmount or bayonet mount? What are the markings on the filter ring? A small amount of interior dust would be normal. They might be valuable and useful. Cleaning and disassembly isn't very expensive. If you're handy and have the right tools, you can probably do it yourself.
Paul
On May 2, 2005, at 5:18 PM, Ian Lind wrote:
I came across several old Pentax lenses which have probably been in storage for at least 20 years.
Nothing fancy. There's an 85 mm, a 35 mm, and a standard 50 mm.
They aren't beat up, but when I hold them up and look through them, there appears to be fine bits of dust on inside surfaces, and other very fine "stuff" that almost looks like mini-spider webs.
Is there any way to do interior cleaning of such lenses or should I just dump them?
If it's pretty hopeless, I'll offer them to someone who might want to experiment...
-- Ian Lind http://www.ilind.net http://www.kaaawa.net
