Image of the day Captured by Lawrence Parchman Eastern Veil Nebula 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 ASTRONOMY EQUIPMENT Equipment Talk MN66 question MN66 question Started by Midnight Sun, 02/13/2007 05:04AM Post Reply Posted 02/13/2007 05:04AM Opening Post John Meiners View public profile Send a private message to John Meiners Find more posts by John Meiners Find threads started by John Meiners Forum Member Join Date: Oct 2001 Location: Astoria OR, US Posts: 494 Could someone tell me the focal length of the MN66 ? thank you, JM Quote Posted 02/13/2007 09:42AM #1 Bruce Mills View public profile Send a private message to Bruce Mills Find more posts by Bruce Mills Find threads started by Bruce Mills Forum Member Join Date: Mar 2003 Location: Saddleworth, GB Posts: 50 John, The '66' means 6" aperture x 6 focal length. Therefore : 6 x 6 = 36inches. Bruce Quote Post Reply Funding Member Sponsors BW BBLABS LLC astronomy-shoppe AstroMart LLC OMI OPTICS USA LLC Desert Sky Astro Products Anacortes Telescope ASTROPHOTOGRAPHY BY MARTIN PUGH SellTelescopes.com Waite Research FocusKnobs kwtelescope Astromart Customer Service Matsumoto Company APM-Telescopes View all sponsors Search News Classifieds Auctions Reviews & Articles Members Reviews & Articles Forums Calendar Events Go