opticoholic
Well-known member
Hello,
I have a new telescope with a 630mm focal length that I'd like to use with my Olympus E-M1 II, but it looks like I will need a much longer extension tube, ideally ~5.5" or 5.75"... That's a full 2 inches longer than the one I use on my 480mm scope. Darn. Do any of you astro-scopers know where I can get a very long extension tube like this?
Dave
Addendum: For now I ordered an additional 2" extension, which I will stack on top of the one I already have. It will be interesting to see how much harder it is for me to use this much longer scope. I'm a little worried about how straight and rigid this "pieced together" extension will be... Also I expect gentle breezes may become an issue. I will probably only be able to use this longer scope when there is very little or no wind.
I have a new telescope with a 630mm focal length that I'd like to use with my Olympus E-M1 II, but it looks like I will need a much longer extension tube, ideally ~5.5" or 5.75"... That's a full 2 inches longer than the one I use on my 480mm scope. Darn. Do any of you astro-scopers know where I can get a very long extension tube like this?
Dave
Addendum: For now I ordered an additional 2" extension, which I will stack on top of the one I already have. It will be interesting to see how much harder it is for me to use this much longer scope. I'm a little worried about how straight and rigid this "pieced together" extension will be... Also I expect gentle breezes may become an issue. I will probably only be able to use this longer scope when there is very little or no wind.
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