RAW image recording / lens abberation correction

[character_stops]

My question involves which image-recording quality matters when one is planning to use lens correction data. Although one of EOS Utility manuals mentions how Digital Photo Professional can resolve peripheral aberrations, it only mentions chromatic corrections only for images such as those recorded RAW. What precisely are right and wrong recording quality choices, in regard to their correlation to the correction data that software uses to fix aberrations? 

[jazzman1 · Accepted solution]

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 I just don't understand the point of having check boxes in those editing programs. It seems as long as you wouldn't touch any of the modifiers (sliders, etc.) it wouldn't affect any corrections already made in camera. So why bother unchecking the box for either correction?

DPP, as well as the other programs, provides more versitile corrections as well as stronger corrections.....than the Camera provides, and many are not in camera.  Most (including me) would use the corrections in the software programs as opposed to in Camera corrections in most situations.  Corrections are in the camera mostly for those without access to a Pc for editing, or for those times when you just prefer to use in camera processing for one reason or the other.  I myself may use in camera processing when uploading pics to someone's Pc.  If one has Wi-Fi you could send your edited Pics to a printer.  Even if you set your corrections to "enable" in camera, you can still overide them in post editing.

[character_stops]

great suggestions!

[jazzman1]

I know the feeling

[ebiggs1]

"Corrections are in the camera mostly for those without access to a Pc, for editing, ..."

And of course this is misleading and not totally true.  The main reason your camera does some editing to a RAW file is so it can be converted to a jpg.  Otherwise you could not view it on the LCD screen.  The camera makes a small data file that tags along with the RAW file.  You computer reads this data file so it can display the image, too.

The RAW file, however, is not altered by this data tag.  You must convert a RAW file in order to use the RAW file.

Most cameras allow you to make a RAW+jpg and then you do have two different files. One is altered to the settings you told the camera to do and the RAW is left alone, untouched as usual.

Personally I never do this and us ethe file type I need.  98% of the time it is a large RAW.

[character_stops]

Thanks. I don't think I'll ever have reason for wi-fi or emailing a picture. As to having just the RAW, I agree. Sometimes white balance becomes a problem, which is harder to fix post-process on a JPEG, so I think I'll just save card space and go with just the RAW.

[jazzman1]

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@character_stops wrote:

Thanks. I don't think I'll ever have reason for wi-fi or emailing a picture. As to having just the RAW, I agree. Sometimes white balance becomes a problem, which is harder to fix post-process on a JPEG, so I think I'll just save card space and go with just the RAW.

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