Quote:
Originally Posted by Shiraz
Do you also take star size into account Slawomir, or just shape?
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3nm filters tend to help big time in keeping star sizes in check, in fact, I feel that quality of filters used is often heavily underestimated in their impact on the overall sharpness and quality of astro images.
An example of an image resulting from collecting subs with a 3nm filter, low above the horizon (30-50 degrees) and humidity was relatively high (January in Brisbane), no subs were rejected:
http://www.astrobin.com/full/148715/D/