Opticstar Zoom XL 7.5mm-22.5mm eyepiece

Premium eyepiece for astronomical and terrestrial use as well as for Solar observation.

  • Particularly flat field of view
  • Focal length: 7.5mm-22.5mm Zoom
  • Field of view: 42° - 66°
  • Parfocal at all magnifications
  • Optical elements: 8
  • Optical coatings: Fully Multi-Coated
  • Adjustable twist-type eyeguard
  • Excellent mechanical construction
  • Threaded for 1.25" filters
  • Barrel size: 1.25"
  • Sturdy cardboard storage box
  • UK warranty
Opticstar Zoom XL 7.5mm-22.5mm eyepiece
  • Product code: XLZ75
  • Availability: In stock
  • Despatch: 2 business days
  • Original Price: £ 195.00
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Description

A premium zoom eyepiece of superior optical quality and craftsmanship. This high-quality zoom eyepiece delivers a particularly flat field of view, exceptional contrast and excellent colour rendition. It is recommended for astronomical and terrestrial use as well as for Solar observing with an appropriate telescope. If you own a smaller Solar telescope like the Coronado PST then the smaller and lighter Opticstar XL 7.2mm-21.5mm ZOOM would also be worth considering.

The eyepiece provides an apparent field of view of 66°-42° and continuous focal lengths between 7.5mm and 22.5mm, this range particularly suits SCT type telescopes that will operate at their highest magnifications at around 7.5mm under reasonable conditions. When used in conjunction with a 2x barlow the eyepiece will reach the maximum possible magnification for a f/4.8 Newtonian telescope thus making it very versatile with a variety of telescopes of different optical designs, focal lengths and focal ratios.


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