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Losmandy 90mm mounting rings....

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18 years 6 months ago #27116 by 11" Astrophotograph
Losmandy 90mm mounting rings.... was created by 11" Astrophotograph
I finally got my Losmandy mounting plate and 90mm mounting rings for my 60mm Refractor (guidescope)





Losmandy mounting plates and rings sure are rigid and pretty heavy :!: :)

MR

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18 years 6 months ago #27126 by 11" Astrophotograph
Replied by 11" Astrophotograph on topic Losmandy Rings.....
I had to move the finder scope and it's bracket because a screw was in the way.....





Now it's totally ready :)

MR

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18 years 6 months ago #27135 by dave_lillis
Replied by dave_lillis on topic Re: Losmandy 90mm mounting rings....
Marty,
Nice setup, one thing I found (at least for a fork setup) is to have the rings centered on the center of gravity of the guider scope.
In other words, have the 2 rings equidistant from the guidscopes center of gravity, and then adjust the rings on the slider rail (without moving them relative to the guidescope) so that the OTA is balanced in the dec axis.

You declination axis will be easier to get balanced which is important for longer motor life, this also helps reduce periodic error in the drive.

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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18 years 6 months ago #27148 by JohnMurphy
Replied by JohnMurphy on topic Re: Losmandy 90mm mounting rings....
Looks the business!

Clear Skies,
John Murphy
Irish Astronomical Society
Check out My Photos

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18 years 6 months ago #27180 by DaveGrennan
Replied by DaveGrennan on topic Re: Losmandy 90mm mounting rings....
Marty,

You did remember what I said about putting the short screws down the main mirror end of the tube?? Otherwise they interfere with the focussing as the mirror moves up and down. Double check if you havent done already.

Regards and Clear Skies,

Dave.
J41 - Raheny Observatory.
www.webtreatz.com
Equipment List here

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18 years 6 months ago #27181 by 11" Astrophotograph
Replied by 11" Astrophotograph on topic Losmandy
Yes Dave, I checked that while putting the mounting plate on...there are not reaching, there fine :)

MR

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