Products

Reduces focal ratio by a factor of 0.63x, making your telescope 2.5x faster Corrects for off-axis coma inherent in Schmidt-Cassegrain designs Prov...

Focal Reducer: 0.7x, f/7 on a C11 and f/7.2 on a C14 Coma Corrector: Corrects inherent off-axis coma in standard SCTs Image Circle: 42mm, desig...

Adapts SCT-threaded accessories to a 2" focuser Male SCT (2") threads on one side Male 2" barrel on the other side Internal threads accept standar...

Converts Sky-Watcher aviation power port Outputs to a female 2.1 x 5.5mm DC port Simplifies power management in the field Enables use of common 12...

Connects T-Mount Cameras to 2" Focusers Low-Profile Design Minimizes Backfocus Threaded for 48mm (2") Filters Description FAQ Specifications Wa...

Attaches SLR/DSLR Cameras to Schmidt-Cassegrain Telescopes Enables Prime Focus Astrophotography Durable Metal Construction Connects to SCT Rear Ce...

Designed specifically for the Celestron EdgeHD 8 telescope Dual-length configuration supports 133.35mm (f/10) and 105mm (f/7 reducer) backfocus In...

Connects to Celestron EdgeHD 9.25", 11" & 14" Telescopes Integrated 48mm (2") Filter Threads Camera Connection: M42 (T2) Male Threads Maintain...

Connects M48 cameras to large EdgeHD telescopes Integrated 48mm (2") filter holder Attaches to the 3.29" rear cell thread Compatible with EdgeHD 9...

Connects to the 3.29" rear cell of EdgeHD 9.25", 11", and 14" telescopes Provides a male M54 thread for camera connection Integrated 48mm (2") fil...

Converts M42 T-Threads to 1.0" C-Threads Adds 5.8mm (0.228") of Backfocus Female T-Threads and Male C-Threads Ideal for HyperStar Setups with Mixe...

Protects Exposed Male Threads Seals Optical Train from Dust and Debris Available in M42, M48, and M54 Sizes Prevents Damage During Storage and Tra...

Solid, threaded connection eliminates tilt and sag Available for dozens of focuser thread standards Choice of M42 or M48 camera-side threads Preci...

Adjustable length from 15mm to 20mm Standard M42 (T2) T-threads Allows for precise back focus adjustment Locking mechanism to secure desired lengt...

Adjustable Length: 20-30mm Thread Type: M42 (T2) T-Thread Description FAQ Specifications Warranty Starizona Variable M42 (T2) T-Threaded ...

Adjustable Length: 30mm to 40mm Thread Type: M42 (T2) T-Thread Provides Continuous Spacing Adjustment Simplifies Achieving Precise Back Focus D...

Kit includes 3 variable-length adapters Covers a continuous spacing range from 15mm to 40mm Standard M42 (T2) T-threads for common correctors and ...

Adjustable Length: 15mm to 20mm Thread Type: M48 Fine-Tune Back Focus Spacing Description FAQ Specifications Warranty Starizona Variable ...

M48 Filter Threads (Male and Female) Adjustable from 20mm to 30mm Locking Ring for Secure Spacing Description FAQ Specifications Warranty ...

Adjustable Length: 30mm to 40mm Thread Size: M48 Fine-Tune Critical Back Focus Replaces Multiple Fixed-Length Spacers Description FAQ Specifica...

Complete kit of 3 variable M48 threaded adapters Covers spacing from 15mm to 40mm First adapter adjusts from 15mm to 20mm Second adapter adjusts f...

Installs a 2-inch rotating visual back on your SCT Allows for smooth, one-handed eyepiece and camera rotation Internal tension ring holds accessor...

Designed for ZWO EAF & Airy Disk Triplet APOs Confirmed Fit for 85mm, 96mm, 106mm, and 140mm Models Machined, Anodized Aluminum Construction I...

Adapts ZWO EAF motors to Feathertouch focusers Compatible with MicroTouch, 2.5", 3.0", and 3.5" models Machined aluminum construction for rigidity...