Merlin66
13-02-2018, 04:48 PM
Just an observation....
I wanted to use the ST102 (500mm fl) with the Baader wedge to test a CaK filter set-up with full disk coverage.
Sounds straightforward.....
Hmmm. No, not really. The backfocus requirements of the Baader wedge fitted with the Baader twist lock and the ASI camera was toooooo much for the available focuser inward travel.
Bumma!
The only solution I can think of, is to remove the Baader Twist lock and replace it with a M48>T2 adaptor then a T2> 1.25 adaptor. This should give at least another 20mm to play with.
We shall see......
I wanted to use the ST102 (500mm fl) with the Baader wedge to test a CaK filter set-up with full disk coverage.
Sounds straightforward.....
Hmmm. No, not really. The backfocus requirements of the Baader wedge fitted with the Baader twist lock and the ASI camera was toooooo much for the available focuser inward travel.
Bumma!
The only solution I can think of, is to remove the Baader Twist lock and replace it with a M48>T2 adaptor then a T2> 1.25 adaptor. This should give at least another 20mm to play with.
We shall see......