Binoculars And Telescopes By SKYOPTIKST

• Full Metal Smooth, accurate Crayford-style focuser
• Function type: for Reflector telescope
• Diameter: both 2 Inch / 50.8mm and 1.25 Inch / 31.7mm
• Suitable for 150mm?6 inch to 203mm?8 inch caliber reflector telescope
• The inside of the item is fully threaded to minimize reflections

• Full Metal Smooth, accurate Crayford-style focuser
• Function type: for Refractor telescope
• Diameter: both 2 Inch / 50.8mm and 1.25 Inch / 31.7mm
• Suitable for 150mm?6 inch to 203mm?8 inch caliber reflector telescope
• The inside of the item is fully threaded to minimize reflections

• Multi-layered enhanced dielectric coatings that produce 99-percent reflectivity for brighter, sharper images.
• 2 inches nosepiece fits 2 inches telescopes; accepts standard 2 Inch filters; eyepieces; Barlow lenses and other accessories,a 2 inch to 1.25 inch adapter incuding,you can also use 1.25 accessories
• Diagonal provides a comfortable 90-degree viewing orientation when observing the night sky through a refractor telescope
• Brass compression ring; Built in brass ring and thumbscrew accessories avoid eyepiece to rotate during adjustments; effortless fixes more firmly and will not scratch your eyepieces barrels
• Machined and anodized aluminum housing features machine-threaded baffles for optimized contrast

• All metal CNC processing, matte oxidation blackening process
• Suitable for Refracting telescope with aperture greater than 80mm
• 2-inch optical interface with brass eyepiece protection ring?With 2-inch dust plug
• Focuser internal full matte treatment, matte threads
• The focusing stroke is 60mm, and the focus can be extended through an extension tube

• Surface accuracy 1/6 ?
• Reflectance at: 92% / 400-950nm
• Major axis of secondary mirror: 50mm
• Minor mirror minor axis: 35mm
• Coating?Enhanced aluminum and protective coating

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