24-70 f/2.8 II quick question

[MartynV]

Hi,

I would be grateful for any advice about lateral chromatic aberration correction with the Canon 24-70 f/2.8L II.

DXO report that this lens has a comparatively high rating for CA of 15 µm (not entirely sure what this means, but it's higher than the f/4L version). Similarly, a sample shown in Photozone's review (http://www.photozone.de/active/magic/get.jsp?id=2099376767_rBhGTrX) shows some red fringing at 24mm f/9 and Lenstip suggests that lateral CA can reach high levels at 24mm. I tend to shoot in jpeg and wonder if the 6D can adequately correct this using the profile. Alternatively, can Lightroom 6 completely correct lateral CAs for this lens? This is a concern as I would use this lens at 24mm for landscapes. I currently own a 24-70 f/4L IS and a 35mm f/2 IS.

Fortunately, the 24-70 f/2.8L II lens does not suffer from longitudinal CA or focus shifting. The f/4 version seems to be affected by the latter and I've noticed it for close-ups.

Thanks,

Martyn

 

[Mt Spokane Photography]

Its minimal, and not a issue. The Nikon 24-70mm G however is pretty bad. CA's show up worse at wide apertures, so a f/4 lens will usually have less.

I never bother to correct CA's from my 24-70 MK II.

Canon

Nikon

 

[MartynV]

Its minimal, and not a issue. The Nikon 24-70mm G however is pretty bad. CA's show up worse at wide apertures, so a f/4 lens will usually have less.

I never bother to correct CA's from my 24-70 MK II.

Canon

Nikon

Thanks for the reply. I guess Photozone didn't correct the lateral CA so the photos were representative of the lens' performance.

 

[Hjalmarg1]

I have used it on my 5D3 and in-camera correction does a great job and you can also correct CA with LR6

 

[Deleted member 91053]

My 24-70 F2.8 V2 must be a duff one as I haven't observed this lateral CA phenomenon. I read about it earlier today on the Lenstip review, first I had heard of it and still haven't seen it.

 

[MartynV]

My 24-70 F2.8 V2 must be a duff one as I haven't observed this lateral CA phenomenon. I read about it earlier today on the Lenstip review, first I had heard of it and still haven't seen it.

Thanks, is your lens centred correctly? Some say the 24-70 II is subject to some copy variation including decentering. I've only seen this once on a 17-55 f/2.8.

 

[Deleted member 91053]

I can only report that it takes noticeably better images than it's predecessor (24-105 F4 L IS) and I have yet to see any colour fringing or c/a. There may be something at the pixel level but nothing on an A3 print.