Time for some Planetary

Cosmic (Daniel) · #1 17-10-2011, 05:49 PM

Good afternoon all,

I'm going to do some planetary imaging what should I get for the existing setup?

I have a 8 inch newton on a eq6 with 550d 2inch extension and badder MPCC I think my magnification is around 35 or very close at prime focus.

Can I just add a 4x 2inch barlow to my prime focus setup for DSO and amplifier it off 35x...? That would give me 160x then I could crop and zoom 640x480 to get more detail again..

I do have a webcam modified also, but I was also give the crop mode a bash on the 550d. Whats going to give me a good size planet with good detail, any advice would be more than welcome to help me enter this new realm

mainly for Jupiter

Thanks
Dan

Poita (Peter) · #2 17-10-2011, 08:22 PM

There is another thread going about the 5x powermates instead of a barlow, might be worth checking out.

Cosmic (Daniel) · #3 17-10-2011, 10:46 PM

Quote:

Originally Posted by Poita

There is another thread going about the 5x powermates instead of a barlow, might be worth checking out.

Hey thanks Poita, Ill look into the powermate side of things as well.

riklaunim · #4 17-10-2011, 11:00 PM

Optimal f-ratio depends on the size of pixels in the camera used. If you have SPC880/900 Philips webcam or alike - with ICX098 CCD, then around f/20 is optimal (sometimes bit more).