Re: Light - What we can and can't see.
thanks for this highly explanatory tutorial on the human vision,
Binoculars: Leica Ultravid 7x42; United Optics BA8: 10.5x70, 15x85; 25x100FB
Refractors: Sky-Watcher 150mm/750mm; Leica APO Televid 82mm (25x-50x WW aspheric zoom)
EPs: Hyperion asph., TeleVue, Swarovski, Pentax XW, Zeiss (46 40 03), Astro Professional (United Optics): UWA and LE(HR) planetary, ATC Nagler
Filters: Astrodon, Astronomik, Baader, TS, Meade
Astrophoto Equipment: AstroTrac; Leica cameras R7, R8; Leica R (also APO) telelenses; Zeiss Sonnar 4/300 and Pentacon 5.6/500 mounted on Nikon F70; still taking pics on films