| Sol Robbins |
| (Carpal Tunnel) |
| 01/23/09 01:38 PM |
Re: Contrast Enhanced Diagonal
|
Quote:
Did you notice any difference in brightness (transmission) from center to edge? I am guessing there is some gradient in coatings from center to edge. It's just my wild guess.
I may be totally off base
Recently, I compared very good wide AFOV eyepiece to excellent planetary eyepiece in light scatter and contrast. I saw Venus something similar to the first sketch (stock diagonal one) in very good wide AFOV eyepiece.
Tammy
Tamiji,
I did not see any differences in brightness anywhere in the FOV. Venus moved around quite bit as I can't accurately polar align when its still light outside.
Thanks,