The review I have been waiting for:
http://www.photozone.de/canon_eos_ff/896-canon100400f4556is2
The measured MTFs are just so good. It is exceptional in the centre at 100-300mm, and still very high at 400mm. At 200mm, it nearly out resolves the 5DII sensor with a score of 3700 LW/PH out of a maximum of 3800, far better than the 70-200mm IS II. At 400mm, it resolves 3450 LW/PH. The sharpest aperture is f/5.6.
http://www.photozone.de/canon_eos_ff/896-canon100400f4556is2?start=1
Comparing with the Mk I, it is way ahead for 100-300mm and significantly better in the centre at 400mm.
http://www.photozone.de/canon_eos_ff/609-canon100400f4556ff
http://www.photozone.de/canon_eos_ff/609-canon100400f4556ff?start=1
It's even better than the 400/5.6.
http://www.photozone.de/canon_eos_ff/612-canon400f56ff?start=1
http://www.photozone.de/canon_eos_ff/896-canon100400f4556is2
The measured MTFs are just so good. It is exceptional in the centre at 100-300mm, and still very high at 400mm. At 200mm, it nearly out resolves the 5DII sensor with a score of 3700 LW/PH out of a maximum of 3800, far better than the 70-200mm IS II. At 400mm, it resolves 3450 LW/PH. The sharpest aperture is f/5.6.
http://www.photozone.de/canon_eos_ff/896-canon100400f4556is2?start=1
Comparing with the Mk I, it is way ahead for 100-300mm and significantly better in the centre at 400mm.
http://www.photozone.de/canon_eos_ff/609-canon100400f4556ff
http://www.photozone.de/canon_eos_ff/609-canon100400f4556ff?start=1
It's even better than the 400/5.6.
http://www.photozone.de/canon_eos_ff/612-canon400f56ff?start=1