Hi, I have a Hutech IDAS LPS-V2 2". I use it for my CCD and DSLR. I do not image without it anymore. It's got good plotted transmission curves. By that I mean it allows enough of the important nm in for my imaging needs. I do not get any untowards reflection either.
There is some colour variation so I usually adjust the green channel to "normalise" the tones in post processing.
I reach skyglow too quickly on my DSLR without it.
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