Quote:
Originally Posted by Octane
I took some unguided, tripod-mounted snapshots of Comet Lemmon last night, with the 5D Mark III and the new 70-200mm f/2.8L II IS USM, at 200mm with the Canon 1.4x II teleconverter, yielding 280mm at f/4. 10 seconds at ISO-3200. At web resolution, they look great. If you zoom in, you'll notice trailing. At f/4, there was /some/ vignetting, but, not enough to be objectionable, and, the stars seemed to not tend towards seagulls on the outer edges. Admittedly, I didn't have a very close look, but, seemed to be fine to my eyes.
I'll post some images in this thread when I get home later tonight.
H
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Looking forward to seeing your results H
F6 Lemmon is the culprit that has spurred on this potential purchase
Seeing your results could be what is needed to go ahead with it
Have you found the 1.4x typte II doing all the communication with the camera upto scratch ? I think this is important as some of the other brands have got some ? ? in this area ?
Much appreciate you input H
Cheers !