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Old 30-10-2009, 10:12 AM
Dennis
Dazzled by the Cosmos.

Dennis is offline
 
Join Date: May 2005
Location: Brisbane
Posts: 11,704
AS H has written, you will need the Canon EOS T-ring in the link you provided.

The bayonet side mates with the body of your 5D.
The other side has a standard T thread.

For most standard SCT’s, there is a male SCT Thread at the rear of the SCT onto which Female SCT threaded adapters can be screwed. Usually this is done via a rotating collar so that you can orient the camera before tightening the collar. Some people fit after market focusers on their SCT’s to overcome mirror movement during focusing and to provide for finer focus control. These usually have a 2 inch push in fitting rather than an SCT screw on fitting.

So, if you have the “native” Meade SCT thread at the rear, you will need an SCT to T-adapter which connects directly to the visual back of SCTs. These can have long or short bodies.

Have a look at the examples on the Scopestuff (USA) website.

http://www.scopestuff.com/ss_tadpt.htm

It looks like the #TASC, TASS and #TASL adapters have SCT threaded collar rings to allow the barrel to be rotated for orienting your 5D. The #TASC may not be suitable as it has a 1 ¼ inch fitting for an eyepiece as well and this may cause vignetting on your 5D? The others appear(?) to offer a larger opening?

Also, have a look at the Celestron adapter from MyAstro Shop (Brisbane) at:

http://www.myastroshop.com.au/produc...sp?id=MAS-054A

Cheers

Dennis
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