Winter Star Cluster M46 and Planetary Nebula NGC2438

Wonderful shot Keith.

Maybe consider taking Dark frames next time. I will disagree with Michael to a point. I found (at least with my Camera) the Signal/Noise ratio seems to be optimised at ISO 800.

Well done on taking a cracking image.

Hi Kieth,

I agree with Dave G, dark frames would help you here.

Nice shot.

Later,

Jed.

I often use iso1600 and 800, I wouldn't go lower then that myself.

Thanks for the encouragement lads

I agree with Dave G, dark frames would help you here.

This is where you simply cover over the SCT, and shoot with the same settings and time right? - all you get is a 'dark' frame - this is then subtracted from the shot in photoshop?

Keith..

yip, thats how you get it.