Optical Accessories

2" BBHS prism star diagonal (BaK4 glass) with 2" ClickLock clamp and black body. High-quality Zeiss-spec prism produced according to Zeiss standar...

T-2/90 ° diagonal prism (BaK4 glass) with 35mm free aperture terminal objective side: 2 "or 1¼" Connection eyepiece: 1¼ " Prism made in accordance...

T-2 (M42x0.75) Locking ring with lever for direct attachment of the MaxBright® II onto all Baader T-2 star diagonals, prisms or mirrors (e.g. to d...

Telecentric with 2" outer diameter and T-2 threads on both sides Aplanatic, with 2x focal length extension to achieve a parallel f/30 beam in conj...

Baader Telecentric Systems for focal length extension for supplying a parallel optical beam and for providing sufficient backfocus, in conjunction ...

Telecentric with 2" outer diameter and T-2 threads on both sides Aplanatic, with 4x focal length extension to achieve a parallel f/30 beam in conj...

Baader U-Filter (Venus and UV) 350nm. Transmission peak approx. 80% at 350nm, bandwidth 60nm (320-380nm), completely blocking the entire spectral ...

The Baader Planetarium UHC-S Nebula filter excels at delivering a high-contrast and natural view of emission nebula - without excessive dimming and...

The Baader Planetarium UHC-S Nebula filter excels at delivering a high-contrast and natural view of emission nebula - without excessive dimming and...

Baader Planetarium produces the world's finest UV/IR cut filter. it use has become the defacto standard for imagers around the world. This filter...

Delivers the absolute highest contrast views of many diffuse and planetary nebula. For many objects, the Baader O-III reveals a level of intricate ...

Features This 1.25" Eyepiece & Filter Kit includes 14 accessories that will add new life to your telescope and your observing! You’ll get five ...

Features This Celestron 2" Eyepiece and Filter Kit includes all the accessories you need to start using 2" eyepieces on your Schmidt-Cassegrain or ...

Features A great accessory for daytime terrestrial viewing with your telescope This 1.25" diagonal produces right side up and left-to-right correct...

Features Zoom from low to high power in an instant with this versatile eyepiece! Compatible with any telescope that accepts 1.25" eyepieces This fu...

Features This economical eight-piece eyepiece and filter accessory kit enhances the performance of your Celestron AstroMaster, or most any other te...

Features Enjoy better views through your telescope with this premium diagonal featuring diffraction-limited optics and dielectric coatings Provides...

Features Enjoy better views through your telescope with this premium diagonal featuring diffraction-limited optics and dielectric coatings Provides...

Features 26mm Kellner eyepiece designed for 2” focusers 3-element lens design with fully multi-coated optics Wide 56° apparent field of view allows...

Features 32mm Kellner eyepiece designed for 2” focusers 3-element lens design with fully multi-coated optics Wide 56° apparent field of view allows...

Features 40mm Kellner eyepiece designed for 2” focusers 3-element lens design with fully multi-coated optics Wide 56° apparent field of view allows...

Features Get extra enjoyment out of your Celestron FirstScope Telescope! Kit includes a Moon filter and two eyepieces with 24X and 50X magnificatio...

Features Take beautiful images of deep-sky objects from light-polluted suburban locations with the Rowe-Ackermann Schmidt Astrograph 11 (RASA 11) u...

Features Enhance your 8" Rowe-Ackermann Schmidt Astrograph (RASA) by blocking light pollution, improving image contrast, and darkening the sky back...