Quote:
Originally Posted by Dave882
For visual, I like to use just a ND (neutral density) filter 0.6 is my preference. But with binoviewers I don’t bother as the brightness is reduced.
If imaging, either a uv/ir filter or IR pass filter annywhere around 600-700nm is good and can give more stable results when seeing is poor.
I honestly don’t think there much difference between makes unless it’s some real cheapo and then might degrade your image.
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You can buy Moon Filters (Neutral Density Filters) that have transmissions between about 85% and 13%. The Orion Moon Filter only passes 13% of the Incoming light. They aren't even close to all the same and a filter only passing 13% of the incoming light isn't what you need with a 5" Telescope. A variable polariser, while it costs a bit more, is a better option for smaller telescopes if you need a filter for smaller kids etc. Far better off viewing the moon unfiltered with a 5" telescope, you will certainly see a lot more detail, but I understand the need to use filters for kids etc.
Cheers