Can different bandwidth filters be mixed?136
发表时间:2020-01-29 16:03 Tolerable. The star point of narrow-band filter is relatively thin, even for narrow-band filter with the same bandwidth, because the signal of SII and oiii is weaker than ha, the star point and HA will be different after later stretching processing, so the image of narrow-band filter is often seen, and there will be a circle of red halo around the bright star point. |