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Yep. I stick two-inch filters into the objective ends of my bins. UHC for one eye, OIII for the other. Or two UHC types.

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After posting this (and getting my new Nikon AE 10x50), I found that my 2" Orion O-III fits nice and snug into the objective end...almost a perfect press-fit. But I only have that one 2" filter, so I can't yet see how well they will work. I'll be getting a 2" UHC soon though.

How well does the mix of a UHC and an O-III work? Does it help nebula "jump out" a bit? Do you see any weirdness due to looking through different filters with each eye?

On a related note, I was at WalMart the other day and they had 3 different sizes of inexpensive polarizing filters all right around 2". I think they were like 50mm, 52mm, and 54mm. So a couple of questions:

1. Has anyone tried these?

2. Which size is a true 2" filter?

3. Are the threads the standard 2" type that will work in EP's?

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Orion XT10 (completely rebuilt, DOB or GEM mountable)
Meade LXD75 6" Newt w/mods
Nikon 10x50 AE Extreme
Hyperion 21mm and 8-24mm Zoom
Astrotech 38mm Titan II
BO/TMB 6mm
Various Plossls

Time flies like an arrow, but fruit flies like a bannana.

The trouble with most jobs is the job holder's resemblence to being one of a sled dog team. No one gets a change of scenery except the lead dog.

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