Honobia, OK (dark sky area in SE OK Kiamichi Mtns)
Seeing conditions
New moon. Mostly clear but not perfect.
Telescope used
12" (300mm) Celestron DOB f/5 (1500mm focal length)
This piece is extraordinary. If you have a big enough mirror to get the light to it you can actually move your head from side to side to take in the field of view.
This piece doesn't fit a 1.25 focuser, it's a true 2" with a camera lens as the eyepiece primary. Check it out at surplusshed.com.
Although it is best as a planet piece, clusters and galaxies work great because the exit lens is big enough (about 10mm!) without impeding metal to allow you to look left / right / up / down to see the rest of what the 2" barrel is giving you.
I'm hooked on this eyepiece and waiting for a 2 or 3 or 4 mm with a true 2" barrel and primary lens.
Pros
Extremely comfortable eye relief and field of view for such high magnification.
Where else have you seen a true 2" 10mm?
Cons
The stop ring isn't low enough. I have to tighten the eyepiece in about a cm before the stop ring wants to rest
Surplus Shed 10mm
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