Eyepieces & Visual

No backfocus requirement, it can be used with any telescopes, newtonians included, without the need for barlow or extender lenses. Self-Centering ...

Instantly switch between three different instrument ports Straight-through port for primary camera or spectrograph 90° mirrored port for visual ob...

Corrects for insufficient back focus to allow binoviewer use Available in 1.25x, 1.7x, and 2.6x magnification factors Removes prism-induced chroma...

Provides 3X magnification for any 2" or 1.25" eyepiece Telecentric optical design ensures consistent magnification Fully EMD-coated optics for max...

Patented 3-axis rack and pinion smartphone alignment Fits eyepieces from 35mm to 60mm in diameter Includes adapters to fit microscope eyepieces do...

6.5mm Focal Length 76° Apparent Field of View Dual 1.25" and 2" Barrels ~20mm Eye Relief Optimized for Binoviewing M43 Photo-Video Adapter Thread ...

High-magnification focal length for detailed views 52° apparent field of view Standard 1.25" barrel format Waterproof and argon-purged for all-wea...

2X Focal Extender 2-inch Barrel with 1.25-inch Adapter Telecentric Optical Design Fully EMD-Coated Optics Edge-Blackened Lens Elements Descript...

4.5mm Focal Length 76° Apparent Field of View Dual 1.25" and 2" Barrels ~20mm Eye Relief 55mm Body Diameter for Binoviewing M43 Thread for Photo-V...

20mm Focal Length 68° Apparent Field of View 1.25" Barrel Diameter Argon-Purged Waterproof Construction Parfocal with other ES 68° Eyepieces De...

90° comfortable viewing angle Large 32mm prism for full field illumination Baader T-2 thread system for modular connections Maxbright-series prism...

Doubles the magnification of any 1.25" eyepiece 3-element apochromatic optics for color-accurate, high-contrast views Fully multi-coated lenses ma...

16mm Focal Length 68° Apparent Field of View 1.25" Barrel Diameter Waterproof & Argon-Purged Parfocal with 68° Series Eyepieces Long Eye Relie...

Complete set of six wide-field eyepieces Includes custom-fitted protective case Flat-field optical design provides sharp views to the edge Long ey...

17.5mm Focal Length 76° Apparent Field of View ~20mm Long Eye Relief Dual 1.25" and 2" Barrels M43 Thread for Photo-Video Adaptation Descriptio...

82° Apparent Field of View 4.5mm High-Magnification Focal Length 15.9mm Long Eye Relief (LER) Argon-Purged Waterproof Construction 1.25" Barrel Di...

28mm Focal Length 68° Apparent Field of View 2" Barrel Diameter Argon-Purged Waterproof Construction Long Eye Relief with Foldable Eyecup Descr...

6.5mm Focal Length 52° Apparent Field of View 1.25" Barrel Diameter Waterproof and Argon-Purged Construction Multi-Coated, Flat-Field Optics De...

25mm Focal Length 52° Apparent Field of View 1.25" Barrel Diameter Waterproof & Argon-Purged Construction Weighs 6.4 oz (181.4 g) Descripti...

40mm Focal Length 52° Apparent Field of View 2" Diameter Barrel Waterproof and Argon-Purged Construction Fully Multi-Coated, Flat-Field Optics ...

9mm Focal Length 62° Apparent Field of View 1.25" Barrel Diameter Waterproof & Argon-Purged Flat-Field Optical Design Description FAQ Speci...

60° Apparent Field of View 6-Element Fully Multi-Coated Optics 16mm of Comfortable Eye Relief Parfocal with all X-Cel LX Eyepieces 1.25" Barrel wi...

Magnification: 2.5x Barrel Size: 1.25" Optical Design: 4-Element Pupillary Corrector Compatibility: Visual and Photographic Use Filter Threads: Ye...

2" BBHS star diagonal with 2" ClickLock terminal and black case. Provides greatest reflectance over most spectral range from 390 to 2000nm New inc...