The Filters We Need With Digital...

Started Oct 5, 2008 | Discussions thread
Henrik Andersson Senior Member • Posts: 2,454

Thanks Joseph, Boris and Gary for the feedback.

Joseph S Wisniewski wrote:

Henrik Andersson wrote:

... or will there be a lot of reflections from the polarizers,
destroying the contrast if the image at the focal plane?

Yes, this technique increases the problems with reflection. It also
causes three other things to go wrong...

What happens if I put these after a reflector telescope instead? (Meade LX400 or similar).

I guess that the light isn't much polarized after the reflections due to the angles ... so no quartz plate is needed to start with?

Would it it help if I tilt the filters slightly to get rid of some reflections?

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