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Model: 70509Brand: Pentax
Generally In Stock, Please Confirm Before Ordering
High-performance eyepiece for astronomical telescopes that offers exceptional versatility and image quality. Stunning build and high quality SMC coatings.
JIS Class 4 Waterproof construction for greater durabilityPentax SMC full-surface multi-layer coated optics reduce glare while providing maximum light transmission and color qualityHigh-refraction, low dispersion lanthanum glass to provide high resolution images with minimal aberrationsAdvanced computer simulation design technology to reduce internal reflections, producing brighter, clearer images60 degree apparent field of viewRubber eyepiece ring designed for viewing comfort
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 4 rated waterproof and fog proof construction, this Zoom eyepiece is ideal for use with 1 1/4" focuser on astronomical telescopes.
Technical SpecificationsType EyepieceLens construction 6 elements, 4 groupsReal field of view 1.9 - 1°Apparent field of view 38-60°Field of View at 1000m 33-17mmExit pupil aperture 4-1.3mmEye Relief 18-22mmLength 144mmWidth 69mmWeight 550gWater proof Yes (JIS Class 4)Lens coating Pentax SMC full-surface multi-layer coatedWeather protection YesEyepiece Attachment Size 31.7mm
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