{} EYEPIECE SMC PENTAX XW-23
EYEPIECE SMC PENTAX XW-23 €599,99
€599,99
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NEW

EYEPIECE SMC PENTAX XW-23

Achieves the widest 85° apparent field of view in the XW series
€599,99
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The new eyepieces of the XW series have the largest field of view in the series at 85°. In combination with an eye relief of 20 mm, they provide a particularly wide field of view for exciting observation of nebulae and star clusters.

 

The eyepiece smc PENTAX XW 23 will be available from beginning of December 2022.

 

High-performance, wide-angle eyepieces for use with high-grade spotting scope


smc PENTAX XW series - 70° or 85° Apparent Angle of View, 20mm Eye Relief, plus Weatherproof Body for Multi-Application Viewing

Long-focal-length eyepieces, ideal for nebula and star cluster observations

XW23 and XW16.5 are newly added to the smc PENTAX XW-series line up featuring an extra -wide 85-degree apparanet angle of view with an extra-long 20mm eye relief to deliver an exciting wide-perspective image.

And thanks to their long-focal-length design, the XW40-R and XW30-R eye-pieces will let you observe large celestial bodies spreading across the night sky, such as the Pleiades star cluster and the Andromedia Galaxy, in their entirely.* * When mounted on an astronomical telescope with a focal length of 10000mm.

 

High-Grade Optics for Exceptional Image Quality

The high-performance XW-series optics incorporates high-refraction, extra-low-dispersion lanthanum glass elements to produce a well-balanced image with minimal aberrations. It is particularly designed to reduce the disturbing blackout effect by effectively compensating the spherical aberration of the pupil.

 

PENTAX-Original Multi-Layer Coating for Outstanding Light Transmission Efficiency

All lens surfaces that come in contact with air are treated with the original multi-layer coating, while all laminated surfaces are treated with the innovative partial coating, to offer the light transmission efficiency of more than 90 percent (an astonishing 96 percent at 550nm) over the visible light spectrum.

 

Advanced Light-Shielding Technology for Improved Image Contrast

Thanks to PENTAX’s advanced computer simulation technology, the XW series features a light-shielding diaphragm at the most effective position to drastically reduce internal reflections for a brighter, higher-contrast image.

 

Comprehensive Lineup to Accommodate All Applications

Featuring functional, practical focal lengths, the XW eyepiece series provides a comprehensive lineup that accommodates all types of applications, from low-magnification viewing of stars to high-magnification observation of planets.

 

Weatherproof Construction for All-Weather Viewing

The XW series features JIS Class 4 weatherproof construction,* making it possible to use it in drizzle or under night dew.

* The XW-series eyepieces are not designed for underwater use and should not be submerged under water.

 

Sleeve Size and Eyecup Design

The XW series provides a choice of two installment diameters: American-standard 31.7mm version, and 50.8mm (two-inch) version. When you remove the screw-on eyecup, it also provides a screw thread with a 43mm diameter and a 0.75 pitch.


XW23 XW16,5
XW23 - smc PENTAX XW eyepiece series for Astro observation XW23 - smc PENTAX XW eyepiece series for Astro observation XW16,5 - smc PENTAX XW eyepiece series for Astro observation XW16,5 - smc PENTAX XW eyepiece series for Astro observation

 

 

XW40 XW30 XW20 XW14  
XW40-R- smc PENTAX XW eyepiece series for Astro observation XW40-R- smc PENTAX XW eyepiece series for Astro observation XW30-R- smc PENTAX XW eyepiece series for Astro observation XW30-R- smc PENTAX XW eyepiece series for Astro observation
XW20 - smc PENTAX XW eyepiece series for Astro observation XW20- smc PENTAX XW eyepiece series for Astro observation XW14- smc PENTAX XW eyepiece series for Astro observation XW14- smc PENTAX XW eyepiece series for Astro observation

 

 

XW10 XW7 XW5 XW3.5  
XW10- smc PENTAX XW eyepiece series for Astro observation XW10- smc PENTAX XW eyepiece series for Astro observation XW7- smc PENTAX XW eyepiece series for Astro observation XW7- smc PENTAX XW eyepiece series for Astro observation
XW5- smc PENTAX XW eyepiece series for Astro observation XW5- smc PENTAX XW eyepiece series for Astro observation XW3.5- smc PENTAX XW eyepiece series for Astro observation XW3.5- smc PENTAX XW eyepiece series for Astro observation

 

 

Product specifications

Specification

Beschreibung

XW23

XW16.5
Focal Length 23mm 16.5mm
Lens construction
[Elements/Groups]
 7/5  7/5
Eye Relief
Figures in parentheses are the distance from the viewing rubber
20mm(12mm) 20mm(12mm)
Apparent Angle of View 85° 85°
Coating* Multi coating  Multi coating 
Weatherproof JIS class 4 equivalent
(splash-proof)
JIS class 4 equivalent
(splash-proof)
Sleeve size 50.8mm 50.8mm
Diameter & Length (minimum) 76mm×125mm 76mm×142mm
inch   3.0in. x 5.6in.
Weight (+/- 5%) 770g 745g
onz   26.3 oz.
Accessories Eyepiece lens cap,
Objective lens cap
Eyepiece lens cap,
Objective lens cap
Art. No. 70541 70540

 

 

Beschreibung

XW40-R

XW30-R XW20 XW14
Focal Length 40mm 30mm 20mm 14mm
Lens construction
[Elements/Groups]
 6/5 6/7 6/4  6/7
Eye Relief
Figures in parentheses are the distance from the viewing rubber
20mm(15mm) 20mm(15mm) 20mm(15mm) 20mm(15mm)
Apparent Angle of View 70° 70° 70° 70°
Coating* Multi coating  Multi coating  Multi coating  Multi coating 
Weatherproof JIS class 4 equivalent
(splash-proof)
JIS class 4 equivalent
(splash-proof)
JIS class 4 equivalent
(splash-proof)
JIS class 4 equivalent
(splash-proof)
Sleeve size 50.8mm 50.8mm 31.7mm 31.7mm
Diameter & Length (minimum)  117 x 76mm 123 x 76mm 86 x 61mm 97 x 61mm
Weight (+/- 5%) 700g 740g 335g 365g
Accessories Eyepiece lens cap,
Objective lens cap
Eyepiece lens cap,
Objective lens cap
Eyepiece lens cap,
Objective lens cap
Eyepiece lens cap,
Objective lens cap
Art. No.        

 

 

Beschreibung

XW10

XW7 XW5 XW3.5
Focal Length 10mm 7mm 5mm 3.5mm
Lens construction
[Elements/Groups]
 7/6 8/6 8/6  8/5
Eye Relief
Figures in parentheses are the distance from the viewing rubber
20mm(15mm) 20mm(15mm) 20mm(15mm) 20mm(15mm)
Apparent Angle of View 70° 70° 70° 70°
Coating* Multi coating  Multi coating  Multi coating  Multi coating 
Weatherproof JIS class 4 equivalent
(splash-proof)
JIS class 4 equivalent
(splash-proof)
JIS class 4 equivalent
(splash-proof)
JIS class 4 equivalent
(splash-proof)
Sleeve size 31.7mm 37.7mm 31.7mm 31.7mm
Diameter & Length (minimum)  110 x 61mm 120 x 61mm 127 x 61mm 137 x 61mm
Weight (+/- 5%) 390g 390g 395g 4055g
Accessories Eyepiece lens cap,
Objective lens cap
Eyepiece lens cap,
Objective lens cap
Eyepiece lens cap,
Objective lens cap
Eyepiece lens cap,
Objective lens cap
Art. No.        

*Partial coating applied to laminated optical element groups