Products

Official Kowa replacement twist-up eyecup Eye-relief cap, as Kowa calls it Compatible with eyepieces for TSN-600, 660M, and 82SV series scopes Fit...

Adds 1:10 dual-speed fine focusing Designed for Sky-Watcher Crayford focusers without a stock microfocuser Replaces the entire pressure plate with...

Author: Philippe Moussette Language: French (the book is written in French only) Prefaces: Hubert Reeves and Charles Tisseyre Publisher: Éditions ...

Lumicon 4 Piece 1.25 Inch Vinyl Dust Cover helps keep your 1.25" optical accessories free from detrimental dust and dirt. Insert onto the small en...

ND13Lumicon Neutral Density 13 Filter will tone down the glare from the full Moon and allow more planetary detail than ever! Lumicon ND13 transmits...

Lumicon 2 Inch Thread-in Extension Tube – 2 Inch Eyepiece Push Back threads into 2" telescope eyepieces for small focus extension. Provides an exte...

Reduces focal length by a factor of 0.8x Widens the photographic field of view Flattens the image field for sharp, edge-to-edge stars Designed for...

100mm Hydrogen-alpha Etalon Filter Enables Double-Stacking on Compatible Telescopes Dramatically Increases Solar Surface Contrast Designed for Lun...

Adapts 2" focusers and diagonals to use 1.25" accessories Specifically designed for Lunt Solar Systems 2" Blocking Filters Features a non-marring ...

Double-stack upgrade for Lunt LS40THa telescopes Reduces system bandpass to <0.29Å 40mm clear aperture Front-mounted, tilt-tuned etalon Reveals...

Double-Stack Filter for LS50THa Telescopes Dramatically Increases Chromospheric Contrast Reveals Fine Detail in Filaments and Prominences Compact,...

50mm Clear Aperture Tilt-Tuned Hydrogen-Alpha Etalon Verified Bandpass of <0.4Å Enables <0.28Å Double-Stacking on LS60MT Front-Mount Filter ...

27mm Focal Length 53° Apparent Field of View 1.25" Barrel Size Flat-Field Optical Design Description FAQ Specifications In the Box Warranty ...

60mm Aperture 0.4Å Bandpass H-Alpha Filter Tilt-Tuned Etalon Double-Stacks Lunt 60mm Scopes to <0.28Å Front-Mount Filter Design Description ...

12mm Focal Length 60° Apparent Field of View Flat-Field Optical Design Etalon-Grade Anti-Reflective Coatings 1.25" Barrel Diameter Description ...

16mm Focal Length 60° Apparent Field of View 1.25" Barrel Diameter Flat-Field Optical Design Solar-Optimized 0.1% Anti-Reflective Coatings Desc...

19mm Focal Length 60° Apparent Field of View Flat-Field Optical Design 0.1% Anti-Reflective Coatings 1.25" Barrel Diameter Description FAQ Spec...

8mm Focal Length 60° Apparent Field of View Flat-Field Optical Design Optimized for H-Alpha Solar Viewing 1.25" Barrel Diameter Description FAQ...

6x Magnification 30mm Objective Lenses Internal CE-Certified White Light Dye Filters Individual Eyepiece Focusing Compact, Portable Design Desc...

7.2mm to 21.5mm Zoom Focal Length Flat-Field Optical Design 0.1% Anti-Reflective Coatings 1.25" Barrel Diameter Optimized for Solar and Night-Sky ...

Enables the use of 2" eyepieces on compatible Lunt solar telescopes Threads directly onto the T2 interface of Lunt blocking filters Internal brass...

12mm Blocking Filter Aperture Required safety component for all Lunt H-alpha Etalon systems Available in 1.25" or 2" diagonal housings Available i...

Reveals solar details in the 393.4 nm Calcium-K line Internal narrowband filter with a <2.4 Angstrom bandpass Features a 12mm blocking filter D...