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C8 focusing question

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19 years 1 month ago #12261 by dave_lillis
Replied by dave_lillis on topic Re: C8 focusing question

The only thing better than it would be a 2" version. I've often though about getting one but they are very big and expensive. However, they would be the bees-knees. Hopefully I've explained it a little more clearly.


Yip,
I got the 2" version on astromart a while back at nowhere near the full price and it screws directly onto the back of the Meade SCT tube, this would fit a celestron SCT also. I got another adapter so it fits into a 2" barrel (for refractor).
Like Michael said, they are excellent, I only wish I had discovered these long ago.

Dave L. on facebook , See my images in flickr
Chairman. Shannonside Astronomy Club (Limerick)

Carrying around my 20" obsession is going to kill me,
but what a way to go. :)
+ 12"LX200, MK67, Meade2045, 4"refractor

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19 years 1 month ago #12263 by michaeloconnell
Replied by michaeloconnell on topic Re: C8 focusing question
Dave,
There are a few different 2" types. Do you know what model number is yours by any chance?

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19 years 1 month ago #12291 by dave_lillis
Replied by dave_lillis on topic Re: C8 focusing question
Michael,
It the borg 7835 focuser

www.sciencecenter.net/hutech/borg/parts/html/7835.htm

I also got the 7508 which allows a 2 inch eyepiece to be placed into it.
and a 7428 SCT thread adapter.

The 7837 is a more heavy duty version of this. I find with the 7835 that its rotational resistance does increase when you attach the canon on to it, especially as the telescope becomes more horizontal. It probabily at its limit with this camera, but it doesn't degrade the performance.

Dave L. on facebook , See my images in flickr
Chairman. Shannonside Astronomy Club (Limerick)

Carrying around my 20" obsession is going to kill me,
but what a way to go. :)
+ 12"LX200, MK67, Meade2045, 4"refractor

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19 years 1 month ago #12304 by michaeloconnell
Replied by michaeloconnell on topic Re: C8 focusing question
What would you need to put the 7835 into a 2" diagonal? Is there a seperate adaptor or would you use the 7428 plus a sct-2" adapter?

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19 years 1 month ago #12306 by dave_lillis
Replied by dave_lillis on topic Re: C8 focusing question
Yea,
You'd use the 7428 and the 2" SCT thread adapter you have, that will allow you to put it into any 2" barrel, be it a star diagonal or directly at the back of the telescope.

Dave L. on facebook , See my images in flickr
Chairman. Shannonside Astronomy Club (Limerick)

Carrying around my 20" obsession is going to kill me,
but what a way to go. :)
+ 12"LX200, MK67, Meade2045, 4"refractor

Please Log in or Create an account to join the conversation.

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