Here is a SMC image from this morning. I think it has a better framing and colour etc. Looks more 'natural'.
Details
Canon 5DH, Canon 300mm F2.8L at F2.8, 6x8min at ISO 200. Hutech LPR filter. In CAm niose reduction ON, corrected for flats with ImagesPlus, stacked with Registar, adjusted in PS.
Large image 3MB http://users.bigpond.net.au/avandonk/SMC_m.jpg
Would have done more frames, but high level cloud rolled in and lost framing.
Thank's all for the compliments. I was very pleased with it myself. Just shows what an awesome combination the 5DH and the 300mm F2.8L are. Then all you need is a clear sky, perfect focus, accurate tracking and intelligent processing. All these things apart from clear skies come with practice. I am afraid I still have a lot to learn.
Great image Bert. Gee Im glad the Universe has substances like Flourite in it. It still amazes me how its possible to make a refractor as fast as F2.8 with sharp stars to the edge of a full 35mm frame
Scott
As I think James Clerk Maxwell once said, 'if i have seen further it is because I stand on the back of giants'. I think Canon spent literally tens of millions developing the design and construction of these lenses. The 300mm F2.8L is considered to be one of the 'best' lenses ever built.
Here is it's MTF plot.
The fact that all the plotted lines are near 100% contrast means that the lens is as good at f2.8 as it is at F8! The lower dotted lines tell you it is not perfect and has slight astigmatism past about 15mm off axis. Here is how to read MTF charts. http://www.luminous-landscape.com/tu...ding-mtf.shtml
I reprocessed the same data to get more of the faint and dim objects to show almost to noise level. This processing is a never ending learning curve that just doesn't seem to level off.
Large image 3.3MB http://users.bigpond.net.au/avandonk/SMC_m.jpg