Nice image Mike, oddly imaging the same target around the same time. I agree with Marcus that you could open up the other structures a bit. You have quite a lot of depth in the data that could be revealed.
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Originally Posted by strongmanmike
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I think in this case I was looking for a nice natural looking result and stretching that area just made it look a bit too harsh this time, sure some more nebulosity came out in the back ground.........
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Mike
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Yes the stretch noise can be seen (I tried and saw it) but not too bad really, especially given the low noise sensor you are using. As you say you wanted something you were happy with. I suppose it could also be the large halo you have on the right hand side too, which is revealed by stretching.
Quote:
Originally Posted by strongmanmike
... one doesn't really need long focal length as such to get good resolution...it's all in the seeing and the image scale
Mike |
True image scale can be comparable with the right pixel size and f ratio, but good seeing is still needed for a long focal length scope too. In poor seeing a long focal length scope still produces poor results. There are certainly a lot of advantages to both system types, yours without doubt is the imaging speed and the adaptability for wide or narrow field, though the lever arm of a big Newtonian and the price of an f3.8 scope has got to be considered in the equation. I have thought several times about going along this route and each time the price, lever arm and the sheer size of a Newtonian prevents me from buying one.