M3 in LRGB

Great shot Dave

It looks three dimensional and you really see the ball shaped mass of stars.

Congrats.

Paul

Thanks for the comments guys. Like Michael, I can't see that gradient that Dave L and Anthony mention. I even tried my laptop and Carl O'Beirnes laptop. Can you guys see the calibration chart underneath as 16 distinct shades. Think I better make a 32 stage calibration chart!!

My monitor is an LCD flat panel with brightness and contrast set at 50% unfortunately no matter how hard you try you cant cater for every monitor unfortunately:(

Dave,

The issue is with the bottom right quarter of the image where there is something resembling a gradient. You probably know best if the moon was in such a position so as to influence that portion of the image.

As for my monitor, I am 100% certain it is perfectly calibrated.

Just had a thought ... how about turning the image into monochrome and then inverting it which should help whatever is there appear.

PS. A good portion of the upper right quarter of the image is also affected.

Hi Anthony. If I up my monitor contrast a good bit, I can see the gradient in the green channel (hardly surpising on a full moon night) you refer to, but in order to see the gradient I need to increase the contrast so much that I cannot differentiate between the three whitest sections on the greyscale chart underneath the image. Basically no matter what I do with my monitor settings I have to change things to such a point that the calibration chart does not show 16 shades of grey.

Not that I doubt you in any way but can you confirm that you can see 16 shades of grey on the calibration chart? What I'll do in a minute if it is ok with you is crop out the upper right quadrant and then decrease the green level in stages until you can see the gradient dissapear. Then I will appy that whole level change to the entire image and see how it looks then.

Thanks for taking the time for the feedback Anthony, I really appreciate it.

Well mate,
As darth vader would say impressive most impressive, i think it's a great image of m51 :lol: :lol: sorry m3.
my the force be with you always.