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Old 30-09-2016, 09:21 PM
flolic (Filip)
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flolic is offline
Join Date: Jul 2016
Location: Split, Croatia
Posts: 48
About the Rocolax UVIR blocking filter, last night I again take few shots of M33 without it. And I can confirm Bojan's measurement, this filter is not good for astrophotography. Without filter Ha regions are clearly visible.

On the other side, I am totally surprised with the stuff I can pull out from my cam84 v3.1 camera. Cam86 should be even better, with lower noise.

M33 from the last night:
(8x900s, gain 63, offset 12, CCD temperature -10C)
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