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M51 through an ed100


Trevor N
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Amazing image Trevor - I particularly like the little edge-on galaxy in the background. I've got an ED100 but I never thought it could be used so effectively for imaging.

Just one question - where do you get an f6.3 reducer for an ED100? - I thought the standard reducers for these scopes were 0.85 (giving f7.65) and the f6.3 was for an SCT.

Tim

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Great result, and a good mix between the mono and OSC camsras.

The 0.63x SCT reducers work fine on small chip cameras when used with refractors. I've used mine with my WO 80 scope and had no problems.

Rob.

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Great result, and a good mix between the mono and OSC camsras.

The 0.63x SCT reducers work fine on small chip cameras when used with refractors. I've used mine with my WO 80 scope and had no problems.

Rob.

Thats worth a note Rob, the calculator on here reports a working distance of 87mm for my C80 not sure if I can get the scope to focus without shortening the main tube? will give it a shot tomorrow..

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Comments much appreciated. Thanks. I think the conversation has covered Wendy's question . I use a standard SCT f6.3 reducer. I managed to get a 2" nosepiece that screws in the front and I use a celestron 1.25" visual back on the rear. I have found coma can be noticeable but overall it seems a good balance. Regards , Trevor

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