f/5 versus f/8 - Getting Started General Help and Advice - Stargazers Lounge
Why Aperture is so Important in Astrophotography • PhotographingSpace.com
Altair 8" F5 Newtonian Telescope
Roland Christen 6” f/8 refractor 1984 - reduced | Astromart
Planetary reflectors - Reflectors - Cloudy Nights
Pentax-DA 560mm F5.6 ED AW Review - Introduction | PentaxForums.com Reviews (Mobile)
Four Inch Apochromat Buyers' Guide
OTA telescope tubes only
Newtonian Reflecting Telescope Designer
120 achromatic f/5 vs f8.3 for general viewing no photography - Refractors - Cloudy Nights
Long fl reflector - 8" f6 vs 6" f8 - ATM, Optics and DIY Forum - Cloudy Nights
June 2008, Nikon Kenkyukai Tokyo, Meeting Report
June 2008, Nikon Kenkyukai Tokyo, Meeting Report
Four Inch Apochromat Buyers' Guide
Ursa Major 6" f/8 Planetary Dobsonian | First Light Optics
6" f/8 or 8" f/6 for planetary viewing and to compliment 10" - Reflectors - Cloudy Nights
APM Telescopes 152/1200 f/8 ED APO Refractor Telescope with 2.5" APM Focuser
June 2008, Nikon Kenkyukai Tokyo, Meeting Report
Four Inch Apochromat Buyers' Guide
Robtics Flattener F5 - F8
Starwave 152mm F5 9 V3 Red Tube Achromat Refractor Telescope
APM Telescopes 152/1200 f/8 ED APO Refractor Telescope with 2.5" APM Focuser
Skywatcher Startravel 150 f/5 vs Skywatcher Evostar 150 f/8 - Getting Started Equipment Help and Advice - Stargazers Lounge
June 2008, Nikon Kenkyukai Tokyo, Meeting Report
