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Showing results for tags 'h-beta filter'.
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I bought an O-III filter for my 200p a couple of years ago and it was certainly worth acquiring for stunning views of the Veil Nebula. It was a real "magic wand". I'm now thinking of a H-beta filter and I was wondering if it's going to be worth it. I see that some H-betas are recommended for CCD imaging use rather than visual. I see that the Astronomik H-beta filter is good for visual observation, with an 8" scope at the bottom of its suggested aperture range, but it is quite pricey. I would value any opinions positive or otherwise. Dave
(I'm posting in the eyepiece section, can't find the right one) Hello everyone, I have a question on H-beta filters, because I'd like to observe nebulae as the Horsehead Nebula.... but other amateur astronomers advised me against doing that. I own a f/6 200 mm (~8 inches) Dobson telescope and the set of eyepieces shown here: They told me I could not use it at its best, because (if I remember right), my telescope is too small. And in case of buying one of these, 2" or 1.25"? There are diffuse nebulae that are wide... but the Horsehead is tiny instead (8' x 6'). I'm a bit confused... Thanks you in advance for your advices and explanations