| Planetarius |
| (member) |
| 05/01/08 05:55 PM |
|
Re: Startest of Astro Tech AT 111 EDT
|
Excellent John.
No color fringes in any picture, perfect round, intra- and extrafocal pictures identical.
Looking critical, there is a slight "feature" sometimes between 9 and 10 and sometimes between 3 and 4 oīclock. Unless you mixed up intra- and extrafocal partly, there is no correlation of feature position and i-/e focal position. I donīt know what this could be, but I canīt imagine this works out negatively to the picture quality even a bit, it might not even derive from the objective.
Congrats to your scope and thanks for your help with this
Volker