5D Mark III in camera lens aberration correction

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Otter said:
Where do you find the list of supported lenses? thanks.

Open DPP and select a image, open the tools palet and click on the lens tab. Then under lens data, click update. A list of available lens correction data will be shown. Check the ones you need, the files are very large, so you don't want to check them all unless you have all the lenses.

When you use the lens correction, your cr2 file almost doubles in size, so its not something to just apply to 10000 images.
 
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I just wonder what you're doing to get the 85mm f/1.8 to produce so many CAs as it's not a lens which is prone to them at all! Neither is the 50mm f/1.4 so this has to be something which you're doing wrong.

Photozone tests:

85mm) Lateral chromatic aberrations (color shadows at harsh contrast transitions) are basically a non-issue - this is a very rare characteristic.

50mm) Similar to most other fix-focal lenses chromatic aberrations (color shadows at harsh contrast transitions) are very low and nothing to worry about.

My advice would be to work on your technique it's better to avoid problems than to try to remove them in post processing. The lens hoods for these lenses are not supplied with them, so it might be worth buying them, and try to avoid the worst high light levels and sharp edges.

Then again the more I think about this the less sense it makes! Taking portraits with a lens wide open and you're getting CA's? on the face?? The background should be blurred out so the only sharp contrast possible is in the in focus areas, i.e. on the face. I've never come across anyone getting CA's in this situation I might have suggested a faulty lens, but it's happening with both of them, are you sure that you're identifying this correctly? There are lots of other potential issues when you open a wide aperture lens up.
 
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Flake said:
I just wonder what you're doing to get the 85mm f/1.8 to produce so many CAs as it's not a lens which is prone to them at all! Neither is the 50mm f/1.4 so this has to be something which you're doing wrong.

Photozone tests:

85mm) Lateral chromatic aberrations (color shadows at harsh contrast transitions) are basically a non-issue - this is a very rare characteristic.

50mm) Similar to most other fix-focal lenses chromatic aberrations (color shadows at harsh contrast transitions) are very low and nothing to worry about.

My advice would be to work on your technique it's better to avoid problems than to try to remove them in post processing. The lens hoods for these lenses are not supplied with them, so it might be worth buying them, and try to avoid the worst high light levels and sharp edges.

Then again the more I think about this the less sense it makes! Taking portraits with a lens wide open and you're getting CA's? on the face?? The background should be blurred out so the only sharp contrast possible is in the in focus areas, i.e. on the face. I've never come across anyone getting CA's in this situation I might have suggested a faulty lens, but it's happening with both of them, are you sure that you're identifying this correctly? There are lots of other potential issues when you open a wide aperture lens up.

The issue with the 85mm f1.8 is purple fringing (longitudinal CA). It's quite noticeable at wide apertures in high-contrast areas.
 
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Yes that can happen, but it's only when you push the lens to extremes, and with that knowledge any user should with minimal adjustment be able to work around to prevent it, and not looking for a cure in post production.
 
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Flake said:
Yes that can happen, but it's only when you push the lens to extremes, and with that knowledge any user should with minimal adjustment be able to work around to prevent it, and not looking for a cure in post production.

I don't understand your point of view at all. It isn't hard to induce purple fringing in that lens. What's the problem with correction in post production?
 
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aloper said:
superpsilo said:
aloper said:
Actually, the lenses are supported for chromatic aberrations...It's just the profiles for these lenses are not loaded into the 5d mark III by default...

Install the EOS Utility that comes with the camera...then connect the camera to your computer via USB. Open the EOS utility. Once open, click on Camera Settings then Lens Aberration Correction. A window will open with lenses listed. Check and uncheck lenses you want support for...I think there is a limit of 40...don't remember for sure. Once done, click Ok...The profiles will now be available in the camera now...

I did this once and checked that the lenses I have were checked and also checked a few I plan on getting in the future...

Thanks, i didn't know that !

Will it work on my 7D also ?

Not sure...sold my 7D when I upgraded to the 5D mkIII...Easiest way to know for sure I guess would be to install or open the EOS utility and check while you have your 7D connected...

Just tried it and works on my canon 500d & 7d
 
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Does EACH lens have to be attached to the camera for it to receive the data? If so, what is accomplished by checking all the combinations of lenses and teleconverters?

Also, how do I import data for a Canon lens not on the list?
 
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abbycatw said:
Does EACH lens have to be attached to the camera for it to receive the data? If so, what is accomplished by checking all the combinations of lenses and teleconverters?

Also, how do I import data for a Canon lens not on the list?

No, you just need to use EOS Utility (with the camera connected to your computer) to load the profiles onto the camera. There's a limit to the number it will hold (don't recall, I know it's 20 on older bodies, maybe 30 on the 5DIII?).

If the lens profile isn't in EOS Utility, it's not available. I expect Canon will add to the list over time, but likely there's little incentive to add old lenses.
 
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