Pentax XW 30-R 70 2'' Eyepiece

Pentax XW 30-R 70 2" Eyepiece

  (3 Reviews)
✓ 2 year warranty


1x in stock shipped 1-2 working days

About this product

Model:  PentaxXW30
Part Number:  S0070537

Match this superb 2" low power wide-field eyepiece with a large aperture Newtonian for breathtaking views of star clusters and deep-sky objects. Wonderful! 


  • High-refraction, low-dispersion lanthanum glass.

  • Pentax Super Multi-Coatings (SMC) on all air/glass surfaces.

  • Edge-blackened optics and optimised baffles minimise internal reflections.

  • Optically corrected for use with focal ratios as fast as f/4.

  • 20mm eye-relief and twist-up rubber-rimmed eyecups - perfect for spectacle wearers.

  • Chromed barrels threaded to accept filters.

  • Weatherproof to JIS Class 4 standards. 


Lens Structure:

7 elements, 6 groups

Focal Length:


Apparent Field of View:

70 degrees

Eye Relief:


Attachment Diameter:

2" (50.8mm)

Filter Diameter:


Field Stop Diameter:


Eyepiece Ring:

Helicoid type

Height & Width:

4.8" x 3.0"


26.1 oz. (740g)

Customer reviews

Average Rating (3 Reviews):  
Write a Review and share your opinions!

Rating (max 5):  
Pentax XW 30-R 2"
Wednesday, 28 September 2022  | 

Perfect !

Rating (max 5):  
Huge eyepiece, fantastic quality
Thursday, 25 August 2022  | 

First things first, this eyepiece is absolutely enormous and very heavy, its only achilles heel, my telescope needed rebalancing every time I put it in the diagonal. Quality is outstanding, build quality, fit and finish, is in my opinion the best I have ever come across, no surprise to see made in Japan printed on the eyepiece. The thing that surprised me the most when using it was, it's so wide you can look around in the eyepiece and there is still sky there, I have heard people talk about this but never experienced it myself, very impressive. Overall this product is expensive but worth every penny, I would recommend it to anyone without hesitation.

Rating (max 5):  
Pretty Great
Sunday, 4 March 2012  | 

This is a big, chunky product that oozes quality. It gives a huge viewing field, loads of light and great pin-sharp optics. It's just great!


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