RKerr

I used to work at Markarian Fine Optics, and I was briefly loaned a Speers-Waler series 3 to use in a shootout with my Nagler 13mm T6. I was under light polluted skies, so some of the standard optical abberations were hard to judge, but none of my tests had the Nagler winning on a technical basis. Most tests I did were a draw, and for chromatic correction (on an F5 12" Dob), the Nagler showed some color on Altair when pushed to the outer 5% of the field, while the Speers-Waler series 3 didn't break. I'm still not sure which eyepiece is more vivid, the light pollution made that hard, but when it comes to technical correction, the Speers-Waler is the better eyepiece. I'll hopefully be able to do a test under better skies soon, and if it goes well it might prompt me to trade in my Nagler!