Astrophotography

Four selectable slit widths: 14 µm, 20 µm, 26 µm, and 32 µm Central 25 µm pinhole for alignment 4mm slit length for extended objects 16mm x 16mm f...

Connects Shelyak spectrographs to Schmidt-Cassegrain telescopes Male M42x0.75 T-mount thread for instrument connection Female 2-inch thread for SC...

Replaces the standard Lhires III front panel Provides a female M42x0.75mm T-mount thread Enables direct connection to custom optical trains Instal...

Connects Canon EOS DSLR camera bodies to T-Mount accessories T-mount thread (M42x0.75) Specifically recommended for Shelyak LISA, Lhires III, Alpy...

Connects M42x0.75mm T-mount accessories to 1.25" focusers Enables secure threaded attachment for cameras and spectroscopes Standard 31.75mm (1.25"...

Element Composition: Thorium-Argon (ThAr) Lamp Type: Hollow Cathode Lamp (HCL) Primary Application: High-resolution spectrograph calibration Desig...

Full remote control of grating, focus, and calibration Achromatic design covers a 350 nm to 1µm spectral range Resolving power of R=1700 with the ...

Motorizes your existing Shelyak UVEX Spectrograph Enables remote control of central wavelength via motorized grating Provides remote fine-focus ad...

Spectral range from 350 nm (UV) to 1 µm (IR) Resolving power of R=1710 with included 600 l/mm grating Multi-position slit with 25µm, 50µm, 100µm, ...

Four selectable apertures on a single plate Wide slits: 50 µm, 75 µm, and 100 µm Calibration aperture: 19 µm hole Compatible with Shelyak Lhires I...

Connects Canon EF-mount DSLRs (mirrorless via EF-RF adapter) to Sky-Watcher reducers Features a wide M48 x 0.75 thread to prevent vignetting Engin...

Field Flattener Matched to the Esprit 100EDX 44mm Corrected Image Circle Point-Like Stars Across Full-Frame Sensors Designed for the Esprit 100EDX...

Dedicated Field Flattener for the Sky-Watcher Esprit 120EDX Flat Field Across a 44mm Image Circle Covers Full-Frame (36 x 24mm) Camera Sensors Mat...

Dedicated Field Flattener for the Sky-Watcher Esprit 150EDX Flat Field Across a 44mm Image Circle Covers Full-Frame (36 x 24mm) Camera Sensors Mat...

0.92x Reducer/Flattener Compatible with the Esprit 70EDX and Evostar 100EDX 44mm Image Circle for Full-Frame Sensors Esprit 70EDX: 490mm f/7 to 45...

50mm Apochromatic Doublet optics with ED glass 242mm focal length at a fast f/4.8 focal ratio Precision 1.25" helical focuser with prime focus rin...

Connects Nikon DSLR cameras to Sky-Watcher telescopes M48 thread size for wider illumination Designed for 0.85x Focal Reducer/Correctors Optimized...

Corrects coma in fast Newtonian telescopes Delivers pinpoint stars across the entire field of view Maintains the telescope's native focal length a...

0.7x Reducer Matched to the Skymax 200DX Converts 2000mm f/10 to 1400mm f/7 43mm Image Circle for APS-C and Full-Frame Sensors 55mm Back Focus M48...

Consolidates control for your camera, mount, focuser, filter wheel, and more 4 x USB 3.0 Type-A ports and 2 x USB 2.0 Type-A ports 4 x 12V DC powe...