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Customers most agreed on the following attributes:
from Columbus, OH on 2/21/2011
Comments about Pentax Pentax SMC Zoom Eyepiece 20x-60x (26x - 78x when used with the 100mm Spotting scope):
I was struck by how large and heavy this eyepiece is compared to those on other spotting scopes that I have used. Once I used it, I realized that the size and quality allow it to do an excellent job of giving you all the image quality that the scope it is attached to can deliver.
Comments about Pentax Pentax SMC Zoom Eyepiece 20x-60x (26x - 78x when used with the 100mm Spotting scope):
I use this with a Tele Vue 85 (also bought from Adorama) and Stellarvue 105 Apo- I'm happy with it's compatibility with both. My wife and I are part-time birders with the 85 and I also love astronomy. Sure this zoom is big, but not any bigger or heavier than the new Ethos eyepieces of Tele Vue. The eye relief is excellent & you won't be squinting to see objects. I agree with the other review, you'll come away with a different point of view (no pun intended) with the Pentax zoom. It's expensive but you'll be glad you invested in it.
from Michigan on 12/27/2008
Comments about Pentax Pentax SMC Zoom Eyepiece 20x-60x (26x - 78x when used with the 100mm Spotting scope):
Used with astronomical telescopes...APO refractors 85mm and 152mm. Spectacular performer...I have full set of regular Pentax EPs and this one get second most use (20mm tops). This even outperforms my special purpose Coronado Ha solar eyepieces in a very dramatic way. Negatives...tall and heavy. Also zoom action is a bit stiff but not a big price to pay considering its performance. If you have tried other zooms...be prepared to have all your preconceptions about zoom performance trashed!