Pentax XW 14mm 1.25 Inch Eyepiece Reviews
Product Type: Pentax telescopes
Newest Review: ... more lenses can increase the field of view of an eyepiece dramatically. That's what Pentax have done with the XW, they have ... more
... used a total of 7 elements arranged in 3 groups of 2 and one single lens. This has enabled them to wrench a 70 degree field of view from the eyepiece.
To get around the problem of adding extra glass, Pentax have used a very high quality lanthanum glass to minimise aberrations such as light scatter or inferior contrast.
A common complaint amongst wide field eyepieces is that the image quality starts to degrade in the outer portions of the field of view. The Pentax stays pin sharp right to the very fringes of the fi...more
Customer Pentax XW 14mm 1.25 Inch Eyepiece Reviews (1)
by - written on 23/10/10 (Very useful, 29 readings)
Rating:
Pentax have long been synonymous with quality and as with anything else in this world quality does have it's price. In the XW 14mm's case it's a rather hefty £250 price tag. That may seem an extortionate amount to pay for an eyepiece but you must remember what you're paying for. If crisp, sharp and wide field views is what you're after then look no further than this little gem from Pentax. Traditionally it is desirable to use the fewest amount of lenses (or elements as they're known) in an optical system. The more glass that's introduced the more degraded the image, however, there are occasions when more lenses can increase the field of view of an ... Read the complete review
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