Optical Accessories

Instantly doubles the magnification of any 1.25" eyepiece 2-element, fully multi-coated optics for sharp, high-contrast views Maintains the origin...

32mm Plössl eyepiece provides maximum true field of view in a 1.25" barrel 4-element optical design with multi-coated surfaces for bright, clear i...

4mm Focal Length for High-Power Planetary Viewing 4-Element Plössl Optical Design 50° Apparent Field of View Multi-Coated Optics for High Contrast...

40mm Plössl eyepiece for low-power, wide-field views 4-element optical design with multi-coated lenses for clarity 40° apparent field of view Gene...

56mm focal length provides the lowest power for any given telescope 47° apparent field of view delivers expansive celestial vistas Utilizes a 46mm...

6mm Focal Length for High Magnification 4-Element Symmetrical Plössl Design 50° Apparent Field of View Multi-Coated Optics with Blackened Edges 1....

9mm Focal Length for High-Magnification Views 4-Element Plössl Optical Design 50° Apparent Field of View 1.25" Barrel with Filter Threads 6mm Eye ...

Isolates doubly-ionized oxygen lines (496nm and 501nm) Provides extreme contrast for planetary and emission nebulae Blocks the entire visual spect...

Isolates the 496nm and 501nm Oxygen III wavelengths Blocks the entire visual spectrum from 400nm to 700nm Ultra-hard, vacuum-deposited coatings pr...

Two 1.25" Kellner Eyepieces (15mm & 9mm) Three 1.25" Filters (#80A Blue, #25 Red, Moon) Enhances detail on Jupiter, Saturn, and Mars Includes ...

Reduces telescope focal length by 37% Converts f/10 SCTs to f/6.3 and f/11 systems to f/7 Compatible with Celestron C5, C6, C8, C9.25, C11, and C1...

Reduces EdgeHD 1100 focal ratio to f/7.7 5-element optical design with Lanthanum glass Increases field of view by 43% Maintains EdgeHD flat-field ...

Reduces EdgeHD 1400 focal ratio by a factor of 0.7x Custom 5-element optical design preserves flat-field imaging Provides a generous 146mm of back...

Reduces focal length by a factor of 0.7x, changing the EdgeHD 800 from f/10 to f/7 4-element optical design maintains the native flat-field perfor...

Reduces focal ratio by a factor of 0.7x for faster imaging 4-element design maintains the native flat-field performance of the EdgeHD 9.25" Provid...

Provides a comfortable 90° viewing angle Inserts into any 1.25" telescope focuser or visual back Accepts standard 1.25" eyepieces Corrects image o...

Engage both eyes for more comfortable, detailed, and higher-contrast celestial views High-quality BAK-4 prisms with a 22mm clear aperture prevent ...

Selectively blocks mercury vapor, sodium vapor, and natural sky glow Achieves over 97% transmission of critical nebula emission lines Features a m...

Selectively blocks light pollution from mercury and sodium vapor lights Achieves over 97% light transmission for maximum brightness 60nm bandpass ...

10mm Focal Length for High-Power Views 60° Apparent Field of View Flat-Field Optical Design for Edge-to-Edge Sharpness 16mm Eye Relief for Comfort...

65° Apparent Field of View 15mm Focal Length for higher-power magnification Flat-field design for sharp stars edge-to-edge 16mm eye relief for com...

18mm Focal Length 65° Apparent Field of View Flat-Field 8-Element Optical Design 20mm Long Eye Relief Parfocal with other Ultima Edge Eyepieces Ac...

24mm Focal Length in a 1.25" Barrel 65° Apparent Field of View Flat-Field 8-Element Optical Design 29mm of Eye Relief for Eyeglass Wearers Threade...

30mm focal length provides low-power, wide true-field views 70° apparent field of view frames large celestial objects Flat-field optical design en...