Niiice pic!! May I ask what setup you were using to capture this? its one target I am going to aim for when im all up and running... I was planing on just using my 70-200F/4L or 135F/2L to capture it all in one frame... obviously going a longer FL has allowed you to get the stunning detail in NGC2070 and the rest of the star field however.
Its a top shot mate! would make a fantastic centerpiece mounted on the wall of an observatory!
Greg go for it. If I worried about that I would not put up a high res image. You wil do better with a 16bit tiff. The original tiff is 120MB! There is no correct answer only the best approximation.
Alexn I can easily get 25C below ambient. The noise is almost non existent at these temperatures. I am totally insane to do this to this to a helpless camera. So far it has survived many trips to cold hell. The lowest temp has been about -18c.
The heatsinks are your general run of the mill CPU heatpipe coolers and work very well coolingtwo 80watt Peltiers. I am still in the process of perfecting this method. I have not lost my marbles. I have just got rid of a lot of noise!
Ive had some experience with TEC's (Thermo-Electric Coolers) and Peltiers... even Evaporative coolers on PC's but never before have I seen such an overwhelming looking monster !
Just dont say minus zero degrees around a maths professor or University major or they will probably beat you to death with their slide rules and pocket protectors.
I know I know.. I studied physics at RMIT in Melbourne a few years back.. I always got in trouble for writing -0° instead below 0° during when we were talking thermal dynamics.
I used Photoshop and a variety of things but mainly reduced the green background which is the bulk of the noise, ran a noise reduction action, did curves and a few layered masks, shadows/highlights,sponge tool/dodge tool to bring out selected areas of colour and brightness.
I used Photoshop and a variety of things but mainly reduced the green background which is the bulk of the noise, ran a noise reduction action, did curves and a few layered masks, shadows/highlights,sponge tool/dodge tool to bring out selected areas of colour and brightness.
I think its a sensational image, well done Bert.
Greg.
Wow, the additional processing has added another dimension to this image.
Just beautiful! It has brought out most of the fainter objects.
That's a wonderful image. So many areas of nebulosity. I too had a play with the image in PS and there is so much more detail hidden in there. You have captured some amazing data there Bert.
Just dont say minus zero degrees around a maths professor or University major or they will probably beat you to death with their slide rules and pocket protectors.
It has brought out most of the fainter objects. 
