12-02-2015, 10:53 AM
Hi folks,
it seems as if the latest Canon review (actually also the others) caused some stir out there.
The issue is that at 50mp the lenses are scaling in the center but at a much lesser degree towards the borders - thus causing an extreme spread between the center and border results.
Thus we are considering to move to a "near center" approach rather than "dead center" (although it never really was the "dead center" - just darn close to it).
"near center" is 1/3 of the distance towards the sides.
See the attachment
top: chart as is (for the Canon 35mm f/1.4 USM L II)
middle: near center approach, same scale
bottom: near center approach, adjusted scale
Thoughts ? I actually quite like it.
it seems as if the latest Canon review (actually also the others) caused some stir out there.
The issue is that at 50mp the lenses are scaling in the center but at a much lesser degree towards the borders - thus causing an extreme spread between the center and border results.
Thus we are considering to move to a "near center" approach rather than "dead center" (although it never really was the "dead center" - just darn close to it).
"near center" is 1/3 of the distance towards the sides.
See the attachment
top: chart as is (for the Canon 35mm f/1.4 USM L II)
middle: near center approach, same scale
bottom: near center approach, adjusted scale
Thoughts ? I actually quite like it.