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FORUMS Canon Cameras, Lenses & Accessories Canon EOS Digital Cameras 
Thread started 16 Aug 2012 (Thursday) 20:34
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5D Mark III In-Camera vignetting control

 
jmwan
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Aug 16, 2012 20:34 |  #1

Hi,

I am about to buy a 5D MK3 with it's kit lens (24-105). I know it has in-camera correction for vignetting (light fall-off if you prefer) as long as the lens data is loaded onto the camera (in this case it would be).

What I am trying to figure out is how good this feature is or how well it works. If I am using the 24-105 at F4 24mm, there can be some light fall-off depending on the exposure. Would the camera get rid of it completely or partially only. Any experience with that?
Correct me if I am wrong but my understanding is that since it relies on lens data for the correction, then it only corrects light fall-off and not actual vignetting from let's say a lens hood or filter? Am I right?

I'll try this in a different forum too to see if I am lucky.
THanks a lot.




  
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vk2gwk
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Aug 16, 2012 21:01 |  #2

There are more "in camera corrections" possible in the 5DIII, like noise reduction. I never use those options. I shoot RAW and do the post processing in the raw Converter (7.1 comes with Photoshop CS6).
That way you can see exactly what you are doing instead of having to rely on what the camera decides is best for you...


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Lenty007
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Aug 16, 2012 23:27 as a reply to  @ vk2gwk's post |  #3

I use this combo 5DIII+24-105 alot and dont see the need to use that feature on-camera. When it should occure with some specific lens it's easily correctable in post-processing (RAW).
Good luck!
Greetings,
Alain




  
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lannes
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Aug 17, 2012 01:40 as a reply to  @ Lenty007's post |  #4

The peripheral illumination function works very well when you enable it, it will automatically apply the lens profile and correct the image, if it is available.
It only corrects for light fall off from the lens design and not from objects such as lens hoods or filters etc.

If the lens doesn't have a profile, vignetting will need to be corrected in post.


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apersson850
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Aug 17, 2012 03:43 as a reply to  @ lannes's post |  #5

It's all work-flow related. If you have time to sit and fine-tune your images at the computer, there's no need for these kind of corrections in the camera. I see it as a more valuable tool for the photographer who has to deliver images from a sports event as the event is going on, for example. He may want vignetting correction, auto lighting optmizer and such stuff applied to his jpeg images on the fly, to make less work needed before the image can be used. He probably shoots jpegs only, but if he does save the RAW as well, then he can redo these corrections later, in the computer, if he wants to.

The correction itself works in the camera. Under some circumstances it's quite noticeable, even if it's less pronounced than what can be done with for example Canon's own Digital Photo Professional software.

The required lens data you can load yourself to the camera, should the lens you use not be included in the default set.


Anders

  
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jmwan
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Aug 17, 2012 07:29 |  #6

Great. THank you for all your answers. Much appreciated!




  
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theviper
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Aug 17, 2012 07:42 |  #7

Is this applied in camera to the Raw files or just applied to the JPG? I only shoot Raw and use CS6 and LR4. Will I see the process applied to the Raw files in the Adobe programs?


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dmward
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Aug 17, 2012 08:07 |  #8

theviper wrote in post #14869867 (external link)
Is this applied in camera to the Raw files or just applied to the JPG? I only shoot Raw and use CS6 and LR4. Will I see the process applied to the Raw files in the Adobe programs?

Nothing about the camera JPG processing parameters is applied to a raw file. It, by definition, is the data collected on the sensor without any manipulation.


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theviper
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Aug 17, 2012 08:18 |  #9

dmward wrote in post #14869925 (external link)
Nothing about the camera JPG processing parameters is applied to a raw file. It, by definition, is the data collected on the sensor without any manipulation.

Except if you open the Raw in DPP where the lens settings will presumably be reflected?
Shame that is the only way to take advantage as DPP is just not part of my workflow.
The manual is also very vague and does not as far as I can remember mention what files it applies to (Raw or jpg).


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apersson850
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Aug 17, 2012 13:19 as a reply to  @ theviper's post |  #10

All such fixes are applied to jpegs only. Information about the setting is stored in the file for RAW, and can thus be applied as a starting point by DPP.
But you can just as well save such a command in DPP and then execute it on the files you like, if you prefer that.


Anders

  
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theviper
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Aug 17, 2012 17:04 |  #11

apersson850 wrote in post #14871075 (external link)
All such fixes are applied to jpegs only. Information about the setting is stored in the file for RAW, and can thus be applied as a starting point by DPP.
But you can just as well save such a command in DPP and then execute it on the files you like, if you prefer that.

Just been messing with the Lens Correction in DPP on some 5D3 shots taken with a 50 1.2L. Quite a nice tool. Wish they would share this suff with Adobe.


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lannes
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Aug 17, 2012 17:51 |  #12

theviper wrote in post #14871940 (external link)
Wish they would share this stuff with Adobe.

Lightroom 4.1 has under the "develop" tab, a full section on lens corrections where you can apply profiles for your lens or manually adjust distortion, vignetting (including mid point) and chromatic aberrations

Lens profile is also supported under most of the recent Adobe apps

http://helpx.adobe.com …_List_of_suppor​ted_lenses (external link)

What's great is lenses from other manufacturers are also supported


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theviper
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Aug 17, 2012 18:48 |  #13

lannes wrote in post #14872098 (external link)
Lightroom 4.1 has under the "develop" tab, a full section on lens corrections where you can apply profiles for your lens or manually adjust distortion, vignetting (including mid point) and chromatic aberrations

Lens profile is also supported under most of the recent Adobe apps

http://helpx.adobe.com …_List_of_suppor​ted_lenses (external link)

What's great is lenses from other manufacturers are also supported

Yes, I use the lens corrections in LR4 and in CS6 Camera Raw. Just that the Digital Lens Optimizer in DPP seems a much better tool.


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newphoto
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Aug 17, 2012 19:06 |  #14

Is the lens correction factor in camera only applied to Jpegs? I have mine turned on, but when I open the raw shots there is no lens correction. I have to do it in ACR.


Colin in Oklahoma
6D, 5D III, 16-35 L IS, 24-105 L IS, Macro 100 L IS, 100-400 L IS, 500 F4 L IS II, 1.4 Canon Extender III

  
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Yogi ­ Bear
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Aug 19, 2012 17:26 |  #15

newphoto wrote in post #14872377 (external link)
Is the lens correction factor in camera only applied to Jpegs? I have mine turned on, but when I open the raw shots there is no lens correction. I have to do it in ACR.

As far as I know, none of the Adobe products recognize any "in camera" corrections applied by Canon cameras to RAW images.


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5D Mark III In-Camera vignetting control
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