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15mm Focal Length 70° Super-Wide Apparent Field of View 1.25-inch Barrel Diameter 13mm Eye Relief 5-Element / 4-Group Optical Design Descriptio...

26mm Focal Length 70° Super Wide Apparent Field of View 20mm Eye Relief Fits 2-inch Telescope Focusers 5-Element / 3-Group Optical Design Accepts ...

7-Piece Filter Set Includes Moon, CPL, and 5 Color Filters Standard 1.25-inch Barrel Size M28.5*0.6 Filter Threads 2mm Thick Optical Glass Desc...

Adds a fixed 56mm of length to the optical path Standard 1.25-inch barrel diameter CNC-machined aluminum for rigidity Solves focusing issues with ...

Adds Critical Focuser Out-Travel Standard 1.25-inch Barrel Diameter Improves Focus for Astrophotography Cameras CNC-Machined Aluminum Construction...

2-Inch Barrel Diameter CNC-Machined Aluminum Alloy Black Anodized Finish Adds Back Focus for Imaging Description FAQ Specifications In the Box ...

Adds Critical Spacing to 2-inch Focusers Solves Focuser Travel Limitations CNC-Machined Aluminum Alloy Construction Standard 2-inch Barrel Diamete...

Precise 0.05mm adjustment accuracy for fine focusing 10mm of draw tube travel Non-rotating mechanism keeps camera orientation fixed Standard M42x0...

1.25" and 2" Sizes Standard Filter Threads (M48x0.75 on the 2") Enables Automated Dark Frame Capture 1mm Thickness (2" Filter) Durable Anodized Al...

30mm Aperture 120mm Focal Length (f/4) 45mm Focuser Tube Travel 26mm Back Focus Includes Mounting Bracket with Dovetail Description FAQ Specifi...

40mm Aperture 160mm Focal Length (f/4) Accepts 1.25" and T2-Threaded Cameras 12.5mm Back Focus Weighs 449.8g (15.87oz) Description FAQ Specific...

Connects SCT Telescopes to T-Thread Cameras Telescope Thread: Female SCT (2"-24TPI) Camera Thread: M42x0.75 Male T-Thread Extension Travel: 30mm (...

240mm Length for Telescopes, Finders & Cameras Flexible Wrap-Around Design Waterproof and Durable Construction Low-Power, Continuous Heating S...

320mm length for small telescopes, guide scopes and camera lenses Actively prevents dew formation for clear, uninterrupted views Flexible design w...

400mm Length Prevents Dew and Fog Formation All-Weather Waterproof Construction Low-Power, Consistent Heating Simple Wrap-Around Installation D...

Length: 430mm Control: Pulse Width Modulation (PWM) Power-efficient design Waterproof construction Prevents dew and frost on optics Description...

Intuitive Red Dot Reticle Adjustable Brightness for Day/Night Use Wide, Unmagnified Field of View Standard Dovetail Mounting Base Durable and Ligh...

Intuitive Red Dot Targeting System Adjustable Brightness for Day and Night Use Wide Field of View for Easy Object Location Universal Two-Hole Fixi...

65mm Focuser Travel 105mm Focuser Tube Length Accepts 1.25'' Eyepieces Fits 114mm-150mm Newtonian Reflectors Durable All-Metal Rack & Pinion D...

6x magnification with a 30mm objective lens Wide 7.5° true field of view for easy object locating 90° right-angle, correct-image view Features non...

6x Magnification 30mm Aperture 7.5° Field of View 90° Right-Angle, Correct-Image View Fully Multi-Coated (FMC) Optics Description FAQ Specifica...

685nm Infrared (IR) Pass Filter Threaded 1.25" (M28.5x0.6) or 2" (M48x0.75) Cell Transmits >95% of light from 673nm to 1100nm Blocks Visible Li...

Provides a comfortable 90-degree viewing angle Standard 1.25" barrel fits most refractor focusers Features a 90% reflectivity mirror for bright im...

99% Reflectivity Dielectric Coatings 90-Degree Viewing Angle 11mm Thick Mirror Substrate Durable Aluminum Alloy Body Brass Compression R...