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Pentax - SMC ZOOM Eyepiece 20x-60x

Model#: PN-70509

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$379.95

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Manufactured by: Pentax

Details

The smc Zoom eyepiece boasts a magnification range of 20-60X, an apparent field of view of 38 to 60 degrees, and an eye relief of 20mm. As with all PENTAX eyepieces, it is distinguished among its peers for its exceptional image reproduction.

JIS Class 6 standard waterproof and fog proof construction means that this Zoom eyepiece is especially suited for use with astronomical telescopes.

 

 

Mark S May 12th 2014

Product Series

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.

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 & Outside Diameter: 44 x 69mm Weight: 19.2 oz. (550g)

Additional Information

Name Pentax - SMC ZOOM Eyepiece 20x-60x
Manufacturer Pentax
Model PN-70509
Actual Field of View 1.9 - 1 degrees Apparent
Actual Field of View - ft (feet) 1000 Yards: 108 - 56 ft.
Angular Field of View 1.9 Degrees - 1 Degree
Dimensions 5.7 x 2.7 in
Exit Pupil 4-1.3mm
Eyepiece Apparent FOV 38
Eyepiece Apparent FOV2 60
Eyepiece Barrel Size 1.25"
Eyepiece Eye Relief 20mm
Eyepiece Focal Length 6.5
Eyepiece Focal Length2 19.5
Eyepiece Elements 6 elements, 4 groups
Field of View - Real 1.9 - 1 degrees Apparent
Linear Field of View (@1000 yds) 108-56 ft
Magnification 20x-60x
Relative Brightness 16-1.7
Weight in Use 19.2 oz. (550g)