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Assuming you have had a full spectrum mod done, where both the LP1 and LP2 filters are removed, you should be running a UV/IR Cut filter in the light path to cut off the lower end of the spectrum (below Ha). The image looks like there is no Cut filter in front. Based on my own full spectrum results on this target that's what I think.
I had a look at the spectrum profile of the CLS filter and it does not cut off the spectrum below Ha allowing 97% passage below 650nm.
Last edited by glend; 10-04-2016 at 09:58 PM.
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