Jump to content


Saturn (1st attempt) & Jupiter (2nd attempts)


Recommended Posts


After a first attempt at Jupiter & @Nik271 suggestions to match focal ratio & pixel sizes a bit better, I tried again with a little 290MM on the f10 7" MakCass.

Both with & without a 2.5x PM.  Filter wheel problems meant I had to stick to mono (which was fine, this was just to get a sense of focus, image capture etc).

Not prime focus which probably means a little loss of contrast, and I'd left a Baader contrast booster filter on the end of the diagonal.

Saturn is v low & was almost gone so only 1 capture made.  More time spent w Jupiter - it's amazing how much rotation there is, even in 3 minutes.

EDIT: The 2.5x PM images are, to me, the worst - not sure if the focus needs to be even more precise at that magnification, or whether its a mismatch between f/10x2.5 & 2.9um pixels - ie 8x - and hence much better at just straight f/10 to 2.9um or about 3.3x ratio?

No prizes will be won 😂









Edited by vineyard
  • Like 3
Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue. By using this site, you agree to our Terms of Use.