The pictures he took with his simple lens are great. Is it possible that its a cemented pair - still somewhat achromatic? This kind of thing is almost as fascinating as pinhole cameras.
Don Dr E D F Williams http://personal.inet.fi/cool/don.williams Author's Web Site and Photo Gallery Updated: March 30, 2002 ----- Original Message ----- From: "Bojidar Dimitrov" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Friday, January 03, 2003 11:17 PM Subject: Re: Simple question of English spelling. > Hi Fred, > > > I think "monocular" would be be OK, but I think that what he created > > is now to be used as a "loupe" > > Actually, a 58/2 Helios lens with all elements but the front one gone is > properly called ... lens. Yes, in the optics sense, it is a simple > convex lens (made up of one element). And in the photographic sense, it > is a lens with some focal length (probably not 55mm), some aperture > (probably not f/2), and aperture and focus rings. > > Cheers, > Boz
