Hi, I just came in from a small stint out in my yard. I was testing out my new Pentax 10mm XW. I know exactly why you don't see these being sold as much as the Naglers: They are far better in my opinion!!!
Tack-Sharp views in my 12" F/5 Telescope, without any warping or coma on the extreme edge of the fieldstop!!!
It's quite cold out here
, but I am enjoying it nevertheless!!!!!...Pentax eyepieces are the Best !!!!...The 10mm XW won't be leaving my possession any time soon !!!!!
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Mark
12" F/5 reflector
30mm 1 rpd (finder EP)
21mm TeleVue plossl(on the way)
14mm Meade series 4000 UWA
10mm Pentax XW
2" GSO Barlow