Lenty007 wrote in post #16710232
Of course we can't argue a difference in IQ between the two bodies.
The 5d is just amazing in its own!
Need to add too that the moon was just about 25° above the rim and was losing brilliance.
I have far more better moonshots laying around (other lenses) in cases where the moon was at its highest (and faster shutter possible).
So in fact the main reason for the softiness is motion blur.
O yea, the 5d doesn't take the Tamron TC very well. The image was ... well a NO GO. Simply unusuable.
This was mearly a attempt for a moonshot with a new lens in BAD conditions.
The 5D should be a very TC-friendly camera, because the pixels are so big to begin with, that without the TC, lots of detail should be lost. IIRC, you took the shot wide open at 1200mm, which is not a good idea if you're going to be looking for maximum detail; you should be at f/18 or so, which is the sweet spot for the 150-600 at 1200mm. If you have an older TC, like my Tamron 2x SP from 2004 or so, it does not have modern coatings, and loses a bit more contrast. Unfortunately, the excellent Canon 2xIII does not fit on the Tamron 150-600 without a 12mm extension tube, which limits focus to about 80 to 100 feet.