Image of the day Captured by Philip Imbrogno M 33 About Astromart Terms of Service Privacy Policy Help & FAQ Astronomy Links User Profiles Top Users List Sponsors Supporters RSS Feeds My Account Log In New to Astromart? Register an account... Need Help? [email protected] Home Forums VENDORS Astro-Physics Refractor question Refractor question Started by P. Tanner, 05/01/2002 04:37AM Post Reply Posted 05/01/2002 04:37AM Opening Post Paul Tanner View public profile Send a private message to Paul Tanner Find more posts by Paul Tanner Find threads started by Paul Tanner Forum Member Join Date: Jun 2001 Location: Hot Springs AR, US Posts: 20 Did AP at anytime ever produce any achromats?If so what years?Paul Quote Posted 05/01/2002 09:50PM #1 Mike Clemens View public profile Send a private message to Mike Clemens Find more posts by Mike Clemens Find threads started by Mike Clemens Forum Member Join Date: Oct 2001 Location: wasilla AK, US Posts: 495 As I recall, Roland Christen wrote once that he had produced a single achromatic lens, and it can be found in his desk/cabinet/something. Quote Post Reply Funding Member Sponsors astronomy-shoppe Desert Sky Astro Products Waite Research ASTROPHOTOGRAPHY BY MARTIN PUGH OMI OPTICS USA LLC Anacortes Telescope kwtelescope Vernonscope SellTelescopes.com Astromart Customer Service Matsumoto Company BW FocusKnobs AstroMart LLC View all sponsors Search News Classifieds Auctions Reviews & Articles Members Reviews & Articles Forums Calendar Events Go