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SBIG Aluma AC4040 CMOS Camera (the most popular) SBIG most popular camera, the SBIG Aluma AC4040 is a large format Scientific CMOS camera, featurin...

ZWO Off-Axis Guider-L-68 OAG-L has a large prism size of 12*12mm, far bigger than M68 OAG. The bigger clear aperture brings wider field of view in ...

ZWO EFW 7x50mm Square Filter Wheel  The 50mm electronic filter wheel is CNC milled from an aircraft-graded aluminum block. Quality guaranteed!   Ad...

Lunt 12mm Flat-Field Eyepiece The Lunt 12mm Flat-Field Eyepiece for solar telescopes is coated with 0.1% anti-reflective coatings. Lunt flat-field...

Chroma 5nm OIII Filter The Chroma 5nm OIII Filter isolates the 500.7nm primary emission line of doubly ionized oxygen. After H-alpha, this is the n...

Celestron Camera Adapter For Sony Mirrorless Mirrorless cameras are spreading like wildfire in the astroimaging community—and for good reason. When...

Celestron 1.25" Visual Back A Visual Back is a metal adapter that screws onto the standard rear cell threads of Schmidt-Cassegrain and Maksutov-Cas...

Astrozap Simple D/C Adapter The AstroZap AZ-719 D/C Adapter was built specifically for those individuals that don't want to purchase a Dew Contr...

Astrozap Binoview Dual Heaters The newly redesigned Astrozap Binoview Dual Heaters are from the finest selection for an active dew fighting system....

Baader Yellow Color Filter Color Filter Set with 6 colors for contrast enhancement of lunar and planetary observations. Included Filters: Dark B...

Baader VariLock 46, lockable T-2 ExtensionTube 29-46mm with spanner tool Lockable T-2 extension tube, adjustable 29-46 mm with clamping Telescop...

Baader Variable locking T-2 extension (12-16mm) incl. lock ring Consists of 3 parts: #26/#34/#35 Converts a T-2 external thread in a T-2 internal ...

Baader UBVRI Bessel R-Filter - Photometric Baader Bessel-UBVRI Bandpass Filter Set, suitable from f/15 to f/1.8 Classic photometric filters with t...

Baader UBVRI Bessel I-Filter - Photometric Baader Bessel-UBVRI Bandpass Filter Set, suitable from f/15 to f/1.8 Classic photometric filters with t...

Baader U-Venus-Filter (350nm) Baader U-Filter (Venus and UV) 350nm. Transmission peak approx. 80% at 350nm, bandwidth 60nm (320-380nm), comple...

Baader T2 Male to 2" SCT Male Adapter Adaptor ring with 2" external thread and T-2 external thread changes a 2" (50.8mm) inner thread to a T-2 (...

Baader T-2/90° Deluxe Amici Prism with BBHS Coating T-2/90° Baader Roof-Prism. Manufactured by Zeiss standard, both sides with T-2 system threads....

Baader T-2 Lock ring 2mm optical path length (T-2 part #35) For locking camera orientation Fits between (almost) any of our T-2 fittings Allows th...

Baader T-2 BBHS Mirror Diagonal T-2 BBHS star diagonal withT-2 threads for compatibility with all Baader's Astro T2 system of parts Provides high ...

Baader Steeldrive Motor Focuser Controller Baader Planetarium's NEW version SteelDrive II Motor Drive gives precision temperature compensated focus...

Baader SC-Adapter 4" Meade Diamond Steeltrack To connect to Meade instruments with 4" inner threads Only suitable for BDS-SC Diamond Steeltrack® f...

Baader RT-Adapter M93 x 1 Diamond Steeltrack To connect Refractors with M93x1 inner threads Only suitable for BDS-RT Diamond Steeltrack® for Refra...

Baader RT-Adapter M90x1.5 Diamond Steeltrack for Skywatcher To connect to Skywatcher Refractors with M90x1.5 outer threads Only suitable for BDS-R...

Baader RT-Adapter M90x1 Diamond Steeltrack for Skywatcher Refractors To connect to Skywatcher Refractors with M90x1 outer threads Only suitable fo...

Baader RT-Adapter Intes Micro D66 Diamond Steeltrack To connect to Intes Micro with D66 Flange Only suitable for BDS-RT Diamond Steeltrack® for Re...

Baader RT-Adapter Diamond Steeltrack for Vixen Refractors M88x1 To connect onto Vixen Refractors with M88x1 inner threads Only suitable for BDS-RT...

Baader RT-Adapter 97mm Diamond Steeltrack for Synta and Celestron To connect Refractors with 97mm inner diameter Fitting for many Synta and Celest...

Baader RT-Adapter 4.2" Explore Scientific Diamond Steeltrack To connect to Explore Scientific Refractors with 4.2" outer diameter and other telesc...

Baader RGB-G Filter CMOS Optimized New CMOS-optimized L-RGB filters from Baader Planetarium with Reflex-Blocker™ and Life-Coat™. Now with 47.4 mm u...

Baader RGB Filter Set CMOS Optimized New CMOS-optimized L-RGB filters from Baader Planetarium with Reflex-Blocker™ and Life-Coat™. Now with 47.4 mm...

Baader Orange Color Filter Largest free opening of all color filters on the market to eliminate any vignetting. CNC machined "grip crown" provides...

Baader Methane Filter 1.25" (889nm, 8nm) Schott RG 830 substrate with super stack dielectric coating For pure methane band transmission, planetary...

Baader Male T-2 Dustcap, outer thread M42 x 0,75 Dustcap with T-2 (M42 x 0,75) male (outer) thread Robust cap made of black, high-quality plastic ...

Astrozap A/C Power Adapter for Dew Controller The Dew Controller A/C Power Adapter converts A/C electricity to D/C and enables you to use an A/C ou...

Baader H-Beta Narrowband-Filter (5.5nm) – CMOS-optimized Baader H-Beta Narrowband Filter – Precision Grade 5.5 nm FWHM, recommended for optical sy...