Herschel wedge

#	Item
1	Baader AstroSolarTM Safety Film Optical quality: This highest precision film consistently produces strehl ratios of 94 to 96 percent at interferometric tests – thus it performs optically like a Fluorite Triplet Lens by Add to Reading List Source URL: www.baader-planetarium.com Language: English - Date: 2013-06-12 06:22:53 Science Astronomy Telescopes Herschel wedge Filter Eyepiece Sun Camera lens Magnification Optical filters Physics Optics
2 $Telescope types / Astronomy / Optics / Televue / Refracting telescope / Crayford focuser / Eyepiece / Diagonal / Herschel wedge / Observational astronomy / Telescopes / Optical devices$	Williams Optics 2" Focuser Add to Reading List Source URL: www.williamoptics.com Language: English - Date: 2011-04-13 13:30:48 Telescope types Astronomy Optics Televue Refracting telescope Crayford focuser Eyepiece Diagonal Herschel wedge Observational astronomy Telescopes Optical devices