Catadioptric telescopes

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Collimation Proceedure

Last post by JayTee « Mon Aug 12, 2019 10:37 pm
Replies: 4
by Gulf Coast Guy » Fri Jun 28, 2019 12:04 am

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What does everyone use? This is mine.

Simple and quick. Saves a lot of that Center-Focus- recenter- re-focus... ad nauseum

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I use that method for my 6RC but not for my C11. For the C11 I used to use a Duncan mask, but recently my son (in high school shop class) made a new...

4 Replies

128 Views

Last post by JayTee
Mon Aug 12, 2019 10:37 pm
Post a Pic of your CAT.... SCT, MAK-Cass , D-K

Last post by stewe « Mon Aug 12, 2019 6:00 pm
Replies: 15
by Rainmaker » Thu Jun 20, 2019 1:13 pm

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I have heard someone say that a Picachu :roll: is worth a 1000 words so here is place you can post up some pictures of your Cat, Cass, Mak, DK etc...

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My Mewlon 21omm F11.5 @ 2415mm with Custom tube rings replacing the stock dovetail, also fitted with Baader SkySurferV RDF, Baader Zeiss T2 prism and...

15 Replies

393 Views

Last post by stewe
Mon Aug 12, 2019 6:00 pm
Can anyone advise me on a mount

Last post by OzEclipse « Sun Aug 11, 2019 6:13 am
Replies: 15
by Don Quixote » Sun Jun 30, 2019 5:56 pm

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I have a 10 inch Meade SCT. It weighs 30 lbs.

I am not asking about the economy per se, but pure functionality considerations.
Thank you for any...

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Hi Mark,
Only just saw this thread. I was travelling when you posted and I wasn't keeping an eye across all the boards.

If you want to do both AP...

15 Replies

235 Views

Last post by OzEclipse
Sun Aug 11, 2019 6:13 am
Hotech Reveals More than Simple Collimation Required.

Last post by smeyer8015 « Sat Aug 10, 2019 4:35 am
Replies: 1
by a100171 » Fri Aug 09, 2019 11:19 pm

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So, now that I got my mount adapter all constructed, and I had a nice stable platform for giving everything the once-over, I setup the Hotech...

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On Celestron scopes the corrector and secondary have indicators for orientation. The corrector plate has a serial number etched into the edge and the...

1 Replies

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Last post by smeyer8015
Sat Aug 10, 2019 4:35 am
Something New...to me.

Last post by John Baars « Sat Jul 20, 2019 12:04 pm
Replies: 18
by Don Quixote » Tue Jun 25, 2019 10:33 pm

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While I was out and about today I stopped by to visit my friend Henry.

By the time I left he had gifted me another telescope.
I am not sure of the...

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:D What a nice gift! Great telescope Mark!
The hole is exactly for the purpose Voyageur already described.
Very wise to close it, creepy crawly...

18 Replies

291 Views

Last post by John Baars
Sat Jul 20, 2019 12:04 pm
How to collimate a Nexstar 8se

Last post by Graeme1858 « Wed Jul 10, 2019 4:43 am
Replies: 7
by kenpresley » Sun May 26, 2019 10:30 pm

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Ok, this is all on me. Recently got a Celestron 8se which was very precise. Everything looked good. But since i had purchased Bob's knobs for the...

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Here's another one for STCs:

Just posted by Dylan O'Donnell

Regards

Graeme

7 Replies

283 Views

Last post by Graeme1858
Wed Jul 10, 2019 4:43 am
EDGE 1100HD vs Meade 12 F10 ACF

Last post by XCalRocketMan « Mon Jul 01, 2019 1:09 am
Replies: 4
by DMouse » Sat Jun 29, 2019 4:55 pm

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So, I used to own a second hand EDGE1100HD, and it had some mirror flop issues, so I sold it. I am currently using an f4 12 inch newt, and find using...

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I own the EdgeHD11 and the optics are excellent. As for the mirror flop, there is a little, the mirror locks work but if you are planning AP with...

4 Replies

128 Views

Last post by XCalRocketMan
Mon Jul 01, 2019 1:09 am
Meade LXD75 8 SCT

Last post by Gulf Coast Guy « Thu Jun 27, 2019 8:02 pm
Replies: 10
by Don Quixote » Tue Jun 25, 2019 1:20 pm

First post

I would like to convert the 1.25 visual back on my 8 Meade LXD75 SCT to a 2 visual back.

Is there a Meade specific adapter?

Any advice would be...

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also, if your buddy has a f6.3 focal reducer se if he'll let you use it. Lower focal ratio by definition means reduced effectivefocal length for...

10 Replies

168 Views

Last post by Gulf Coast Guy
Thu Jun 27, 2019 8:02 pm

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