Optical Accessories

Optolong UV/IR Cut filter is designed for ultraviolet and infrared wavelength blocking to improve sharpness of the image as most of the optics are ...

For visual observation

Complete 4-filter LRGB set for broadband deep-sky imaging Standard 2-inch mounted format for wide compatibility Guaranteed 1/4 wavefront optical p...

9MP Sony IMX533 Color CMOS Sensor (3008x3008) Ultra HD 2560x2560 Display 90° Apparent Field of View 2-Stage TEC Cooling up to 30°C Below Ambient D...

UV/IR-cut filter with anti-halo coating Blocks ultraviolet and infrared wavelengths Reduces halos around bright stars Improves contrast and color ...

UV/IR-cut filter for astrophotography Blocks ultraviolet and infrared wavelengths Improves color accuracy and image sharpness 1.25″ filter size Co...

This kit contains a methane filter, an AllSky lens and a lens adapter. It's made for the QHY5III462C camera only.

Less Eye Fatigue = Better Finding - --PulsGuide pulses the reticle illumination to let the eye rest between pulses. The result? Improved contrast I...

Individual inserts that allow the use of 1.25″ filters in threaded cells to be used instead of 36mm unmounted filters in the FW8-8300 and FW8S-Alum...

This is a 1.25″ screw-in filter cell for unmounted 1.1″ standard glass filters. The cell includes a retaining ring for holding the filter in place.

Reduces focal ratio to f/4.8 0.74x reduction factor 3-element optical design 44mm corrected image circle Standard 55mm back focus Description F...

Reduces telescope focal ratio to f/4.6 Converts focal length to 230mm Quadruplet optical design with field flattening Standard 55mm back focus req...

Converts the SharpStar 61EDPH to a fast f/4.5 astrograph Provides a 44mm image circle for full-frame sensor coverage Three-element air-spaced opti...

Converts 76EDPH to a fast f/4.5 focal ratio Produces a 44mm image circle for full-frame sensors Standard 55mm back focus for easy camera integrati...

0.8x Focal Reduction for SharpStar 94EDPH Creates a Fast f/4.4 Optical System 4-Element Optical Design 50mm Corrected Image Circle Standard 55mm B...

Designed to fully illuminate APS-C sensor on most APO refractors. The SharpStar 2" field flattener has a M42x0.74 male thread to connect the camera...

Designed to fully illuminate full frame sensor on most APO refractors. The SharpStar 2.5" field flattener has a M69 male thread to connect the came...

Corrects coma in Newtonian reflectors from 150mm to 600mm aperture Optimized for fast focal ratios from f/3 to f/6 Provides a 44mm image circle fo...

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

Features The HyperStar C11 lens converts a standard Celestron 11" SCT from f/10 to f/1.9, making the system 25 times faster. That means 25-tim...

Focal Ratio: f/2.1 Focal Length: 425mm Compatible Telescopes: Celestron 8" Schmidt-Cassegrain (SCT) & EdgeHD 800 Largest Usable Sensor: 27mm d...