COMET 10×50 Porro Prism Binocular (GREEN)


  • General Specifications of Comet 10X50 DPSI Wide Angle Binoculars:
  • Model: Comet 10X50 DPSI
  • Magnification: 10X
  • Objective diameter: 50MM
  • Type of prism: Porro
  • Prism Coating: Yes

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COMET 10×50 Porro Prism Binocular (GREEN)

comet prism binocular isSuitable for hunting, Bird Watching, Camping, Hiking, Traveling, Sporting Events and Outdoor Adventures.

Technical Specifications

  • Lens coated: BMC
  • Focus System:Cent.
  • Exit Pupil Diameter(mm): 5mm
  • Exit Pupil Distance(mm): 11.8mm
  • Angle of View: 6.5°
  • Field of view: 114m/1000m
  • Min. Focal Length(m): 7m. (22.9 ft.) to infinite
  • Diopter system: Right Eyepiece
  • Diopter Comp.:±3
  • Interputer pupillary Distance: 56mm~72mm
  • Relative Brightness: 25
  • Weather proof: No
  • Nitrogen Filled: No
  • Eyecups system: Fix
  • Pouch: YES
  • Wide Strap: YES
  • Cleaning Cloth: YES
  • Silica Gel: YES
  • Tripod Adaptable: YES
  • Unit Dimension: 193x184x61mm
  • Weight(g): 970 g

Refractor Homepage Binoculars and telescopes

The Bresser Messier AR-80/640 Nano Refractor Telescope is a complete beginner’s telescope. It’s a 3-inch achromatic refractor that’s bundled with everything a newcomer needs to get started: a manual altaz mount, a red dot finder, a star diagonal and a 26mm Plössl eyepiece.

Its 3-inch aperture is more than adequate to allow observations of a wide range of celestial objects, its altaz mount is intuitive to use and the whole thing is a doddle to set up.

Achromatic doublet lenses, like the ones in this scope, are made from two types of glass that work together to minimise chromatic aberrations – an unwanted effect that produces coloured halos around bright objects.

More expensive optics have a number of special coatings applied to reduce reflections and increase light throughput, but this lens assembly has only one coating of magnesium fluoride (MgF2) – the minimum required.

The inside of the seamless aluminium optical tube is nicely blackened, though and has a single baffle to help reduce unwanted internal reflections.

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