Celestron
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1.25" Oxygen III Line band filter
$99.95This Celestron Oxygen III light pollution filter has a very narrow passband for very high contrast on emission nebulas, making it a good choice for city and suburban observing . . . -
1.25" UHC Narrowband filter
$89.95This Celestron ultra high contrast (UHC) light pollution filter has improved contrast when compared with the wider passband of a broadband filter, making it easier to pick out faint nebulas . . . -
48mm Oxygen III line band filter for 2" eyepieces
$139.95This 2" Celestron Oxygen III light pollution filter has a very narrow passband that blocks out almost all unwanted light pollution, making it a good choice for nebula observing from city and suburban locations . . . -
48mm UHC narrowband filter for 2" eyepieces
$124.95This 2" Celestron ultra high contrast (UHC) light pollution filter blocks out most unwanted light pollution, making it easier to pick out faint nebulas from suburban and dark sky observing sites alike . . . -
Celestron "Universal" T-adapter for 1.25" focusers
$33.95This Celestron prime focus adapter fits the 1.25" focusers of reflectors and refractors for terrestrial and lunar photography . . . -
Celestron .7x Reducer Lens for The EdgeHD 925
$429.00The EdgeHD .7x Focal Reducer Lens makes your EdgeHD 9.25" one full F-Stop faster than f/10, reducing your exposure time by half to capture the same brightness of object
4-element lens design
Maintains similar flat-field performance as native EdgeHD optical design
Increases field of view by 43% to better capture wide field images
Threads directly onto the 3.25" threads of the EdgeHD which reduces mechanical vignetting and allows for use with larger (full frame) sensors and Off-Axis Guiders
Maintains the identical back focus when used at f/10 and provides generous back focus to accommodate additional accessories and wide variety of cameras
Allows use of existing EdgeHD T-Adapters with or without the Reducer Lens -
Celestron 1.25" Prism diagonal
$49.95A Star Diagonal lets you view objects that are at a 90° angle from the direction the telescope is pointing, thereby allowing comfortable viewing when the telescope is pointed at, or near, the zenith (i.e. directly overhead). The resulting image is right side up, but will be reversed from left to right. . . . -
Celestron 1.25" Visual back / eyepiece holder
$39.95This Celestron eyepiece holder/visual back threads on the 2" rear cell of all Celestron 5", 8", 9.25" and 11" Schmidt-Cassegrain telescopes to allow the use of 1.25" accessories . . . -
Celestron 10mm 1.25" 82° Luminos
$149.95This 10mm Celestron Luminos eyepiece has a wide and flat 82° field of view for high power "picture window" views and the ideal 1mm exit pupil with an f/10 catadioptric telescope for sharp and highly-detailed images . . . -
Celestron 11 Pound counterweight for Celestron CGEM equatorial mount
$79.95This Celestron 11 pound counterweight helps you balance heavy loads mounted on a Celestron CGEM go-to equatorial mount. Not for the CGEM DX mount . . .
