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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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Moving forward from solar cycle 24 to 25

Old Coronado BF30

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Ohhhhhh My!
Ohhhhhh My!
Posts: 131
Joined: Tue Mar 04, 2014 6:13 pm

Re: Old Coronado BF30

Post by mdwmark » Sun Feb 10, 2019 2:21 am

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.

Almost There...
Almost There...
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Joined: Mon Feb 06, 2017 9:04 pm
Location: The Netherlands

Re: Old Coronado BF30

Post by bart1805 » Mon Feb 11, 2019 9:56 am

pedro wrote:
Sun Feb 10, 2019 12:34 pm
Great news, Have you tried it yet?
No, unfortunately not. It is on the long list of things to try, hope to do so in the next couple of weeks.

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