Manufacturer: Pentax 70509
Pentax has been in business since the 1910's designing and manufacturing high quality cameras, binoculars, scopes and sport optics. Pentax has a reputation for producing the finest optics available using innovative designs and high quality components that consumers demand. Few companies around today can boast the loyal world wide following that Pentax has. With over 100 years of extensive experience in the industry Pentax is truly synonymous with quality.
The SMC Zoom eyepiece features a magnification range of 20-60X, an apparent field of view of 38 to 60 degrees, and an eye relief of 20mm. Like all PENTAX eyepieces, it is renowned for its outstanding image reproduction. With its JIS Class 6 rated waterproof and fog proof construction, this Zoom eyepiece is ideal for use with astronomical telescopes.
Specifications and Features:
60 degree apparent field of view
Rubber eyepiece ring designed for viewing comfort
Also for use with astronomical telescopes with 1.25" focuser
Pentax SMC full surface multi layer coated optics reduce glare while providing maximum light transmission and color quality
High refraction, low dispersion lanthanum glass to provide high resolution images with minimal aberrations
Advanced computer simulation design technology to reduce internal reflections, producing brighter, clearer images
Waterproof construction for greater durability
Lens Structure: 6 elements, 4 groups
Real Field of View: 1.9 - 1 degrees
Apparent Field of View: 38-60 degrees
Field of View at 1000m: 33-17mm
Field of View at 1000 Yards: 108 - 56 ft.
Exit Pupil: 4-1.3mm
Eye Relief: 20mm
Relative Brightness: 16-1.7
Eyepiece Size: 5.7" x 2.7"
Lens and Outside Diameter: 144 x 69mm
Weight: 19.2 oz.
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