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in stock

Pentax XW 3.5mm - 70° Field of View - Premium Quality

310,08 EUR
excl. VAT
excl. 4,53 € Shipping costs

SMC XW 3.5mm Pentax wide angle eyepiece

Pentax XW 3.5mm - Wide Angle Eyepiece - 70° Field of View

Pentax XW eyepieces were designed from the beginning for outstanding performance in all areas. The image sharpness is truly exceptional, no matter whether the eyepiece is used on an f/4 Newtonian, an f/7 APO refractor or an f/15 Maksutov.

Particular care was taken to design the eyepieces for superb viewing comfort. The eyepieces are perfectly comfortable to use both with or without eyeglasses.

The state of the art SMC coating results in a very bright image (98% transmission). Image sharpness remains perfectly sharp throughout the large field of view.

From the first second the eyepieces radiate a feeling of quality throughout. As such they also were made for a long lifespan. They are weatherproof according to the JIS class 4. This means, among other things, that the coating and the mechanical body are very robust.

All in all we consider Pentax XW eyepieces one of the finest choices for discriminating amateur astronomers who are looking for the best in quality and performance.


Focal Length 3.5mm
Apparent Field of View 70° - the entire field of view can be easily viewed even with eyeglasses
Coating SMC multicoating on all glass-to-air surfaces
Glasses used XW eyepieces use Lanthanum ED glass elements for optimum performance
Optical Layout 6-8 lenses in 4-6 groups
Transmission approx. 98%
Blackened Lens Edges yes
Eye Relief 20mm - ideally suited also for eyeglass wearers
Eyeguard Twist-adjustable eyeguard
Rubber Armouring Yes. For a comfortable grip even at low temperatures.

Useful Accessories for Photography:

A little known fact about the Pentax XW eyepieces is that they are also very well suited for digiscoping (= photography with a compact digital camera). If you unscrew the top of the eyeguard the Pentax eyepieces will have a thread for the adaptation of various cameras with a firm, self-centering connection.

Adapter to T2 ... for the adaptation of SLR cameras or in combination with step-up rings for compact digital cameras. ....................

As follow-up adaptation you can use:

Adapter from T2 to M52 .... frequently needed for many compact digital cameras ..........

Adapter from T2 to M37 or Adapter from T2 to M 54 .... these adaptors, combined with the Baader and Soligor DT rings, allow you to reach almost any common camera thread .................................. Link

The PENTAX XW Eyepiece Range

Pentax SMC XW wide angle eyepieces

PENTAX is probably best known for their high quality state of the art cameras and lenses. But this renowned Japanese manufacturer also uses its extensive experience for designing top grade astronomical telescopes and accessories. Pentax refractors were developed from the beginning for an outstanding photographical performance. Pentax eyepieces are widely regarded as some of the best eyepieces available on the market today.

Teleskop-Service is proud to be authorized dealer for PENTAX astronomical products.

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