Pentax SMC XF 8.5mm Eyepiece

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Manufacturer Code: 70531

UPC : 027075087330

Brand: Pentax

RRP: £119.00£78.00Inc VAT 20%You Save: £41.00

Pentax SMC XF 8.5mm Eyepiece : Pentax eyepieces are a near consensus choice amongst serious amateur and professional astronomers that facilitates the use of eyepieces from independent manufacturers with standard of 1.25" eyepiece thread diameter. Pentax eyepieces can be used in other telescopes and spotting scopes which accept 1.25" eyepieces. The eye piece is made from 8 lens elements in 4 groups and fully blacked inside to minimize internal reflections. High grade SMC full-surface multi-layer coated optics reduce glare while providing maximum light transmission and colour quality. The optical elements are ED-glass elements that include Lanthanum glass, to minimize chromatic aberration and maximize well-balanced transmission. Maximum usability and viewing comfort is offered with 70° apparent angle of view. Eye relief at a comfortable 18mm, also eyewear users can have a comfortable view. Twist-up rubber eyecup provides comfortable viewing. The XF eyepieces are meet the J.I.S. "Class 4" standard for waterproofing, described by the Japanese regulators as "water splashed against the enclosure from any direction shall have no harmful effects".
Pentax SMC XF 8.5mm Eyepiece is available at Microglobe at discounted price. Microglobe is largest online sport optics store of the UK.

Pentax SMC XF 8.5mm Eyepiece

Features - Pentax SMC XF 8.5mm Eyepiece

Works well with any Pentax spotting scope, as well as with other telescopes which accept the standardized 1.25" eyepieces

Rubber eyepiece ring designed for viewing comfort

Lightweight, compact, durable and sophisticated design

Helicoid-type eyecup with four detented click-stop positions

Also can be use with astronomical telescopes with 1 1/4" focuser

Weather resistant construction for durability and harsh weather application

High grade SMC full-surface multi-layer coated optics reduce glare while providing maximum light transmission and colour quality

Advanced computer simulation design technology to reduce internal reflections, producing brighter, clearer images

High-refraction, low dispersion lanthanum glass to provide high resolution images with minimal aberrations

Specification - Pentax SMC XF 8.5mm Eyepiece
Model	SMC XF 8.5mm
Magnification	46x (with the PF-65ED)
Field Stop Diameter	8.8mm
Thread Size	1.25"
Exit pupil (mm) at minimum magnification	1.4mm (with the PF-65ED)
Field of View at 1,000m	22m (with the PF-65ED)
Angular Field of View	1.3° (with the PF-65ED)
Eyerelief	18mm
Lens Construction	6 Elements are Arranged into 4 Groups
Relative Brightness	1.90 (with the PF-65ED)
Twilight Factor	54.6 (with the PF-65ED)
Dimensions	43 x 83mm
Weight	150g