The 24-105L II tested on both 50MP and 21 MP:
http://www.photozone.de/canon_eos_ff/995-canon24105f4ismk2?start=1
And, like at TDP, the Mk I slightly outresolves the Mk II. When compared on the 21 MP rig (5D2), the Mk I is a hair better.
"Honestly, we were a little shocked by these results. The first tested sample also showed a higher than usual optical decentering. Thus we repeated the exercise with a 2nd sample. This one was well centered (albeit still back-focusing like hell) but not really better."
Distortion was improved on the 24mm end from that staggering 5% (Mk I) to 3.2% (Mk II). For perspective, the 24-70 f/2.8L II was 2.8% and the 24-70 f/4L IS was 2.4% at their site, which they consider 'moderate' distortion for such a FL range of lens.
But evidence continues to mount that this lens does not clearly one-up its predecessor like prior 'II' and 'III' sort of sequels.
- A
http://www.photozone.de/canon_eos_ff/995-canon24105f4ismk2?start=1
And, like at TDP, the Mk I slightly outresolves the Mk II. When compared on the 21 MP rig (5D2), the Mk I is a hair better.
"Honestly, we were a little shocked by these results. The first tested sample also showed a higher than usual optical decentering. Thus we repeated the exercise with a 2nd sample. This one was well centered (albeit still back-focusing like hell) but not really better."
Distortion was improved on the 24mm end from that staggering 5% (Mk I) to 3.2% (Mk II). For perspective, the 24-70 f/2.8L II was 2.8% and the 24-70 f/4L IS was 2.4% at their site, which they consider 'moderate' distortion for such a FL range of lens.
But evidence continues to mount that this lens does not clearly one-up its predecessor like prior 'II' and 'III' sort of sequels.
- A