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Geoff,
I am so used to my Canon A610's live view mode that I find the lack of it on the 400D a little disappointing. I say some of the other similar camera's I think the Olympus DSLR have liveview as well on there lower end DSLR's. I wonder why Canon left it out. Anyways I was tempted by the 40D but not enough to stretch my credit beyond my budget to pay it off.
I have done a bit of googling and found that the following is required
1. EOS to T-thread adapter (For prime focus imaging).
2. Along with a T-thread adapter
3. or variable T-Thread adapter like the Meade ones. The variable one has a barlow built in, i think. Its more for Planets etc.
4. The Meade ones mentioned above screw onto the SCT Thread at the back of the scope, or you can place a Focal Reducer and then screw into that.
I am thinking for the ED80 or similar the T-thread adapter will need to have a eyepiece like pipe to slot into the focuser.
Also the 8" only have a 1.5" hole in them so the best we can do is use a 1.25" adapters and am wondering if this will cause vignetting.
Regards
Fahim
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