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| p.3 #3 · 600 f4 IS II+1.4X III vs 800mm 5.6L |
Fred Miranda wrote:
Great photos Arash! Thanks for sharing them. The original post linking to the 100% crops seems to indicate that the 600II + 1.4x is 'better' optically than the 800L and that was the issue. As it has already been written on this thread, both options are excellent and have their own drawbacks.
When comparing the 1D-X with the 1D4 on a review I'm writing, I tend to get more consistent BIF results with the 1D4 with the following settings:
Tracking set to (-1, actually one point to the left)
Servo 1st image priority to "Focus" and 2nd to "Tracking".
Most other AF...Show more →
I also wouldn't say it is "better" but they are identical. Canon specifically matched the optical formula of MKIII extenders with MKII super telephoto lenses and they did hit a home run IMO. I agree, any minute difference in sharpness will be greatly outweighed by other factors in the field so it is somewhat irrelevant IMO.
I also set my MK4 tracking sensitivity to slow (all the way to the left). This is basically the re-focus delay. Having it set to slow makes the camera hold focus if the AF sensor momentarily slips from the bird to the BG but at the same time if you do lock on the BG, makes it more difficult to refocus back on the bird in time. so it acts as a double edged sward It really comes down to handholding technique and keeping the bird centered in the frame...
I also have expansion points active (options 3, 6 expansion points).
As for the other settings, I haven't really been able to tell if they make a difference as the subject itself is very erratic in case of BIF!