60D, two setting questions (ALO & PIC)

--I'm very new to Canon, the 60D and this forum. I shoot RAW, studied the manual, made my setting choices, process in LR3, 6 years using DSLRS, many more in film SLRS, as background.

Two settings have me puzzled:

1. Auto Lighting Optimizer

2.. Peripheral Illumination Correction

What are these two, what do they do, how do most of you set them, are they more for JPG or RAW?

tourretired
Travel in RV when not home.

ALO does a fill light digitally, when it thinks it's needed (read: possibly more noise);



PIC corrects vignetting digitally;

They're for jpeg (though I don't know whether the setting is automatically applied by DPP to RAWs). I leave vignetting correction on, though my only Canon lens (the 18-135) has little correction applied. ALO I leave off because quite often I want to hide the shadows. I turn it on for individual photos, though, using the Quick Control Screen.

I shoot jpeg so I do not know if or how it effects raw. Auto light optimizer just simply corrects the exposure... like a crutch to get the exposure to be a bit more brighter (so the book describes). I view it as very similar to HTP in a way but slightly different. I leave it on normal.

Illumination correction simply corrects vignetting as they call it. the light fall off on the corner edges of the lenses.
--

Darkness is the monster and your shutter is your sword, aperture your shield and iso your armor. Strike fast with your sword and defend well with your shield and hope your armor holds up.

Thank you Omega6666, CarVac, and Rakumi for your explanations.

I think I'll leave the ALO or fill light off as I add it in LR3 as needed.

The same goes for Periperal Illumination or vignetting. LR3 provides adjustments for that too and when I set the 'lens correction' it seems to account for that and lens distortion.

I wish whoever wrote/translated the manual, if it was written in Japanese, would use common known terms like 'fill light' and 'vignetting'.

Thanks again everyone.

tourretired
Travel in RV when not home.

Re periferal illumination, my 60D menu system tells me that data is available for my canon lenses, but when I use an older Sigma 17-70mm [non IS] the menu says something like "correction data not available" and so I think it does not correct for the dark corners when using this lens, sometimes called [incorrectly] vignetting. I have no idea at the moment which lenses the 60D has data for, nor if it is possible to somehow add data for other lenses. That would seem to be a firmware thing perhaps. With the 15-85mm lens it certainly works very well.
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Ken from the UK now in France

You can add 'lenses' to the 7D concerning PIC.

For the 7D you connect the camera to a computer and turn it on, EOS Utility should start up. Select 'Camera Settings/Remote Shooting,' in the window that opens click on the 'camera' symbol if it's not already on that. The last item says PI Correct, click on that and another window opens 'Register PIC Data' you can now add lenses. They are only the Canon lenses you can add. You can also add converters as well for the lenses they are to be used on. So I added 500 f4 on it's own and 500 f4 with a 1.4x and a 500 f4 with a 2x converter.

I don't know if this is the same for the 60D?

--
Phil

Did you ever stop to think, and forget to start again?