Thanks for the info.
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Actually it focuses faster and more surely in low light than the Sigma(I've owned both). It does have tons more CA and is less sharp over the outer 2/3's of the frame(35mm)Here's the correct link to the patent (the patent link above points to a 55-250mm patent).
The patent shows 10 elements in 8 groups, compared to the current 35/1.4L which has 11 elements in 9 groups.
I like my 35L, and I'd probably preorder a 35L II if/when one comes along.
What are the weak points in current 35L? I would like to add fast 35mm in near future.
Slow and poor low light focusing. It is after all much older technology...
Thanks!Taken with Magic Lantern Focus stacking, 5D MarkII and Sigma 150(non-IS). It is quick to do a stack, probably good for insects.
That is an incredibly good Image, well done, honestly one of the best I've seen on CR, completely wowed me.