Or not, If that is just a blocker. Then it will turn back on at 750nm in the red. KG3 is down at about 1000nm. So that area between 750 and 1000nm will be leaking energy. That will be enough to be a problem(not to good for your eye). The short side, RG630 will block anything there. If it is really a hard coated blocker it may or may not be blocked to 1000nm.
To bad you can't have it checked to see what the profile really is.
Mark W.
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Transit of Mercury in the Spicule Layer. Phil took this great image with his Quantum 6 Scope, Solar Spectrum etalon and PGR Camera.
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Old Coronado BF30
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Re: Old Coronado BF30
Great news, Have you tried it yet?
