Quote:
Originally Posted by robz
Marvellous video Ken.....thank you.
Just a quick question, I have a Honeywell dome CCTV unit that I got for nix and it too has a motor driven filter that slides in to place on certain settings.
It looks greenish like the one in your video, is this the IR filter or the Bayer colour combination?
Cheers,
Rob.
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Hi Rob, it is the IR filter
A Bayer Matrix is on the face of the chip and you really can't see it properly.
The problem with these factory fitted IR filters (that greeny bluish filter) is that they have the wrong cut-off points for astrophotography.
They are fine for security cameras at the entrance to buildings and such, but they also cut off some of the light we want to collect from deep space objects, making them very faint.
A good 'astrophotography' IR filter (for a Reflector) or IR/UV filter (for a Refractor) allows the right amount of light through while blocking only the infrared or the infrared and ultraviolet
Get that built-in filter out Rob