Achromats in old lenses at DVinfo.net

David Delaney · October 7th, 2006, 08:49 AM

I have a couple of old 'Sears' and screw-mount lenses lying around that I don't have a use for - wondering if there is an achromat in regular lenses that might be of use?

Frank Hool · October 8th, 2006, 11:32 AM

Achromat lens scheme is one of oledst. In very early times those were in production as full functional photolens. Now it is part of more difficult schemes. So it's true You can find those from photolens.
You have to study just diagram of Your lens. If You don't know how achromat looks in diagrams, then here You can find diagram of Achromat

October 7th, 2006, 08:49 AM	#1
David Delaney Trustee Join Date: Feb 2006 Location: Niagara Ontario Canada Posts: 1,121	Achromats in old lenses I have a couple of old 'Sears' and screw-mount lenses lying around that I don't have a use for - wondering if there is an achromat in regular lenses that might be of use?

October 8th, 2006, 11:32 AM	#2
Frank Hool Major Player Join Date: Apr 2006 Location: Barca Spain Posts: 384	Achromat lens scheme is one of oledst. In very early times those were in production as full functional photolens. Now it is part of more difficult schemes. So it's true You can find those from photolens. You have to study just diagram of Your lens. If You don't know how achromat looks in diagrams, then here You can find diagram of Achromat