Quote:
Originally Posted by xelasnave
If I purchased a myall cover for a refractor can I expect to get anything using a mono cosmos camera with a HA filter in place?
Alex
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No. Typical narrow Ha filter will be 12 or 6nm. Typical Ha solar telescope will be 0.7 Angstrom. 1 Angstrom=0.1 nanometer. Energy rejection filter also to be in place in Solar telescope. This very narrow bandwidth is why they cost so much.