Quote:
Originally Posted by troypiggo
The sharpness of the pillars is outstanding, and the stars are tight and round across the field. I have to ask about the background smoothness. Is that a noise reduction filter applied? Seems to have that waxy, too smooth look? Not criticising, just curious. I can only compare the backgrounds to my modest equipment, with which I see much more noise and I guess as a result, accept a more noisy background. Higher end gear must be smoother (and I've noticed that recently on one of Bert's raw images recently), but don't know to what extent.
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The background smoothness is probably due a number of factors, No diffraction spikes, superb optics (the Honders ( a 12" F3.8 scope ) is fully corrected for all 5 Seidel aberrations spherical, coma, astigmatism, field curvature and distortion), the camera being at -40C, a 3nm filter, plus had a good calibration data set.
Guiding was at a modest 5Hz....hence it's pretty much all signal, no noise.
Quote:
Originally Posted by Joshua Bunn
Wow Peter, Pinpoint tiny stars, contrast and depth.  |
Ta Josh