Hi all.
To cut a long story short I'm having quite a time with Saturn. No matter what I try, 9 X out of 10 I end up with that problem of that 'ring on the globe' (see image below) My 1st Saturn I ever captured & put on site had this problem which was shot at 10 FPS with the toucam. It was recommended to me to shoot at 5 FPS to solve the problem. I've also read it's an under exposure problem.....& an over exposure one!!
I've pretty well tried all setting combo's without really solving the problem.
My usual settings for Saturn are: 5 FPS / 1/25th sec exposure / brightness usually between 50 & 80% / Gain 40% on average / gamma zero.
Most nights I will take several AVIs of saturn @ 5/10 & even 15 FPS but the problem seems to be somewhat random, occuring on the 5 FPS AVI 50% of the time. I've thrown away some really good images of Saturn recently because of this
Is there any definite answer to this problem? Is this common? Is it perhaps a seeing condition problem...
Comments welcome.