Shop By Category
- Accessory Kits For Telescopes
- Astronomical Art
- Binoviewers
- Books & Software
- Cables For Telescopes
- Carrying Cases For Telescopes
- Clothing
- Collimating Tools For Telescopes
- Coma Correctors
- Component Packages
- Dew Heaters For Telescopes
- Dew Shields and Lens Shades For Telescopes
- Dust Covers For Telescopes
- Eyepiece Containers
- Finderscopes For Telescopes
- Flashlights, Night Vision
- Focusers For Telescopes
- Focusing Masks For Telescopes
- Gift Certificate
- Image Erecting Prisms
- Observing Books and DVDs
- Observatory Domes
- Optics Cleaning Products
- Personal Planetariums / Electronic Sky Guides
- Planispheres
- Rechargeable Batteries And Power Supplies
- Star Charts and Atlases
- Star Charting Software
- Star Diagonals
- Telescope Control Software
- Used and Closeout Books
- Video Monitors
- Viewing Chairs
- Visual Backs/Eyepiece Holders
- 1
- 2
-
Takahashi 1.25" Prism diagonal
$170.00This premium 1.25" Takahashi TAKSD1 compression ring prism star diagonal is the diagonal that Takahashi puts with all of their complete telescope systems - even those costing as much as $30,000. -
Takahashi 1/10Th wave accuracy 2" compression ring Diagonal w/1.25" adapter
$650.00This 2" diagonal uses a telescope-grade elliptical mirror with a guaranteed 1/10th wave surface accuracy for superb high contrast/high detail lunar, planetary, and deep space images . . . -
Astro-Tech 2" 99% Reflectivity dielectric mirror diagonal for SCTs
$149.95This 2" dielectric mirror-type star diagonal is designed to give you first-class performance with a Schmidt-Cassegrain - at a money-saving and far from first-class price . . . -
Tele Vue Schmidt Cassegrain 2" Everbrite Diagonal Rich Field Kit
$371.00This kit is designed to allow a premium Tele Vue 2" Everbrite diagonal attach to your SCT.
-
1.25" mirror diagonal for Brandon eyepieces on a 3.5" Questar
$335.00This Questar #19107 star diagonal is designed for axial viewing with 3.5" Questar telescopes only . . .
-
Astro-Tech 1.25" 99% Reflectivity dielectric mirror diagonal
$79.95This 1.25" dielectric mirror-type star diagonal was a Sky & Telescope Hot Product for 2007! Considering its performance, it would be an outstanding value at twice the price. At its economical low price, it's still a hot product, and nothing short of sensational . . . -
1.25" Enhanced aluminum 96% reflectivity mirror diagonal
$189.00This 90° 1.25" mirror-type star diagonal uses enhanced aluminum mirror coatings for a full 95% reflectivity. The mirror is overcoated with quartz for long life. The mirror housing and 1.25" barrels are precision-machined from a single block of solid aluminum, rather than being simply a pair of less-rigid tubes screwed into a flimsy plastic mirror housing or sheet metal stamping, as with lesse . . . -
1.25" 99 Percent reflectivity Everbite mirror, 60 degree viewing
$322.00This unique 60° viewing angle 1.25" diagonal is a sensible step up for comfortable extended viewing of the Moon and planets, as well as more comfortable terrestrial observing . . . -
Celestron 2" Starbright XLT Enhanced aluminum mirror diagonal for SCTs
$189.95This 2" first surface mirror diagonal for Schmidt-Cassegrains has a 1.25" eyepiece adapter and Starbright XLT enhanced multicoatings for better than 96% reflectivity . . . -
Celestron 2" DIELECTRIC STAR DIAGONAL WITH TWIST-LOCK
$249.95Enjoy better views through your telescope with this premium diagonal featuring diffraction-limited optics and dielectric coatings
- 1
- 2