Hi all,
I seem to be having quite a problem with focus on the Nexstar 11" SCT.
I have a 2x barlow (good quality) on the visual back of my celestron, and a modified ToUCam attached to it.
My optics are clean, the seeing is good. I am displaying the planet Jupiter on screen using IRIS and have a nice big bright planet. After adjusting the brightness, gamma, frame rate etc, I can get atmospheric banding, but absolutely NO detail. No matter how much I fiddle with focus on the SCT, I can't seem to get even close to seeing the big red spot, much less any other cloud feature.
Even after a 180 second AVI at 10FPS, stacked and optimised in Registax, there is still nothing to work with.
Any suggestions?
Baz
