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UPDATE
The forum will be moving to a new domain in the near future (canonrumorsforum.com). I have turned off "read-only", but I will only leave the two forum nodes you see active for the time being. I don't know at this time how quickly the change will happen, but that will move at a good pace I am sure. ------------------------------------------------------------
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Hi,
I have the Canon EF 70-200 f/2.8 L IS ii USM lens and use it with my 5d3. I have tried my best to AFMA it and I am happy with its focus accuracy when using the center focus point in the single spot focus point -mode. However, I am noticing (more and more consistently) that @ f/2.8 when using peripheral focus points (for example the second column of focus points from either left or right side when in landscape orientation), the focus is often not correct. Mostly it is front focusing, though I have not made exact measurements. Is this typical to the lens, or should I send it in for some service?
And, is this more typically a lens or a body problem? I am not noticing the same with for example 24-70Lii or 100L macro, but I am not sure if there is a bit of this same with 35f2.
I've now learned to use more focus and recompose -technique with the 70-200, which is fine for stills and gives me good results, but for less still subjects peripheral focus points would be useful for nicer compositions.
Anyone having similar experiences, on this lens or another, or peripheral focus points in general? All my experiences are mainly in good light situations.
Thanks for any insight!
I have the Canon EF 70-200 f/2.8 L IS ii USM lens and use it with my 5d3. I have tried my best to AFMA it and I am happy with its focus accuracy when using the center focus point in the single spot focus point -mode. However, I am noticing (more and more consistently) that @ f/2.8 when using peripheral focus points (for example the second column of focus points from either left or right side when in landscape orientation), the focus is often not correct. Mostly it is front focusing, though I have not made exact measurements. Is this typical to the lens, or should I send it in for some service?
And, is this more typically a lens or a body problem? I am not noticing the same with for example 24-70Lii or 100L macro, but I am not sure if there is a bit of this same with 35f2.
I've now learned to use more focus and recompose -technique with the 70-200, which is fine for stills and gives me good results, but for less still subjects peripheral focus points would be useful for nicer compositions.
Anyone having similar experiences, on this lens or another, or peripheral focus points in general? All my experiences are mainly in good light situations.
Thanks for any insight!