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Hi Bones
For the Moon-Venus-Jupiter conjunction as viewed from Brisbane on the evening of 30th November 2008, I used my Canon 40D with 70-200 F4L mounted on a photo tripod. I shot at 70mm focal length and tomorrow, you should be able to frame all 3 nicely at 200mm.
Exposure was 4 secs at ISO400. I focused using in-camera Live View and exposed using a remote release in Live View Mode, which locks up the mirror to minimise camera shake. The better exposures were after 7:15pm AEST when twilight was “darker”, revealing some of the fainter stars and the Earthshine on the “non-illuminated” portion of the Moon.
At 70mm, I found that even at 4 secs, I was getting a little star trailing, which more or less disappeared at around 2.5 secs, although I then lost some of the background stars.
I found 400 ASA was the best trade off for my set up, keeping my exposure to around 4 or 5 secs whilst minimising noise. I reckon I’ll be limited to around 2 secs tomorrow, using the lens at the 200mm end.
Hope you have a successful evening tomorrow!
Cheers
Dennis
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