Explore Scientific

Reduces focal length by a factor of 0.8x for wider fields of view Engineered for refractors with focal ratios from f/5 to f/7 Provides 55mm (+/- 2...

254mm (10-inch) Aperture f/5 Newtonian Optical Design Hybrid Truss Tube for Portability Includes 25mm and 10mm Plössl Eyepieces Red-Dot Finder and...

14mm Focal Length 100° Apparent Field of View 2" Barrel Diameter Argon-Purged and Waterproof Construction Fully Multi-Coated and Edge-Blackened Op...

Expansive Apparent Field of View 2-inch Diameter Barrel Waterproof and Fog-Proof Construction Argon-Purged and Sealed Optical Housing Fully Multi-...

100° Apparent Field of View 25mm Focal Length 2" Barrel Diameter Waterproof and Argon-Purged Construction Fully Multi-Coated and Edge-Blackened Op...

30mm Focal Length 100° Apparent Field of View 3" Diameter Barrel Argon-Purged Waterproof Construction Fully Multi-Coated and Edge-Blackened Optics...

5.5mm Focal Length for High-Magnification Views 100° Apparent Field of View for an Immersive Spacewalk Experience 2" Barrel Format Argon-Purged an...

9mm Focal Length 100° Apparent Field of View 2" Barrel Diameter Argon-Purged Waterproof Construction Fully Multi-Coated Optics Description FAQ ...

114mm (4.5") primary mirror gathers ample light for planets and bright deep-sky objects Fast f/4.4 focal ratio provides expansive, wide-field view...

9mm Focal Length 120° Apparent Field of View 2-Inch Diameter Barrel Argon-Purged Waterproof Construction Ideal for Non-Driven Telescopes Descri...

Adapts the 3" 0.7x Reducer (FFFR507X-00) to fit 2" focusers Enables use of premium optics on a wider range of telescopes Secure, precision-machine...

Connects DSLR cameras to any 2-inch telescope focuser Standard male T2-thread (M42x0.75) for camera-specific T-rings Enables direct prime-focus as...

2" Filter Barrel Size Continuously Variable Brightness Ideal for Lunar, Planetary, and Solar Observing Neutral Gray Color Rendition Stackable with...

Doubles the magnification of any 1.25" eyepiece Telecentric optical design ensures a true 2x power factor Maintains the original eye relief of the...

2X Focal Extender 2-inch Barrel with 1.25-inch Adapter Telecentric Optical Design Fully EMD-Coated Optics Edge-Blackened Lens Elements Descript...

Reduces focal ratio by a factor of 0.7x for wider fields and shorter exposures Functions as a field flattener to correct edge-of-field aberrations...

3-inch self-centering draw tube 17 lb (7.7 kg) lifting capacity 9:1 dual-speed focusing system 84.5mm of precision draw tube travel Rotatable back...

3-inch Self-Centering Focuser Design 17 lb Lifting Capacity for Heavy Imaging Trains 9:1 Dual-Speed Helical Rack-and-Pinion Mechanism 84.5mm of Pr...

Designed for Explore Scientific white-tube ED127 and FCD-100 refractors 17 lb instrument lifting capacity Self-centering compression system elimin...

Instantly triples the magnification of any 1.25" eyepiece Telecentric optical design provides consistent magnification Maintains the eye relief of...

Provides 3X magnification for any 2" or 1.25" eyepiece Telecentric optical design ensures consistent magnification Fully EMD-coated optics for max...

Designed for 50mm finder scopes Standard height profile at 93mm Lightweight at only 3.9oz (110.6g) Three-point adjustment thumbscrews for precise ...

Designed for 50mm Finderscopes Tall Profile for Comfortable Viewing Angles Quick-Release Dovetail Bracket Multi-Point Adjustment Rings Large, Glov...