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Lunt Blocking Filter Owners. Your Assistance Please

Posted: Fri May 17, 2019 6:09 pm
by bilbo
Hi Guys

I have an issue with light transmission through a B600 filter

If you own one of these or B400 B1200 could you help with a little experiment, Shine a White light (I used LED) at an angle onto the large scopeside filter so that you can see the reflection and tell me whether the reflected light is white or green. If you can let me know the scope year (first four digits of S/N or OOOO for late models it would be a great help in narrowing down the issue.

I'll elaborate more later

cheers

Steve

Re: Lunt Blocking Filter Owners. Your Assistance Please

Posted: Sat May 18, 2019 8:30 am
by krakatoa1883
Green reflection (B600 #0000507). B1200 the same (purchased few months ago).

Re: Lunt Blocking Filter Owners. Your Assistance Please

Posted: Sat May 18, 2019 9:59 am
by bilbo
Thank you very much, I've put this Q on a couple of forums, I'll post a full explanation once I've got enough replies in as it may be of concern to everyone.

Steve

Re: Lunt Blocking Filter Owners. Your Assistance Please

Posted: Sat May 18, 2019 11:14 am
by krakatoa1883
Now I'm curious... :lol:

this is the actual color of the glass
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