What is the "Auto adjust White Clip" slider for?

The Aperture manual says:
Auto adjust White Clip slider: Use the “Auto adjust White Clip” slider and value slider to add tolerance to Auto Levels adjustments when evaluating colors beyond white.
But I don't know what they mean with "add tolerance". What is it intended to do?

"Auto Levels" analyses your Image and applies a Levels adjustment based on a preset algorithm (similar to "Auto-enhance" in iPhoto, for example). The Auto adjust White Clip slider allows you to set what percentage of pixels will be set to full-luminance. (Hover your cursor over the slider for a ToolTip.)
This is very easy to see in practice. Select an Image with no adjustments applied, and duplicate it. Then with the Auto adjust White Clip slider set to the left, click "Auto" in the Levels Brick. Select the other Image, change the slider all the way to the right, and "Auto-Levels" that Image. Compare the two. Be sure to compare the histograms in the Levels Bricks: this shows you mathematically what the difference is.
Message was edited by: Kirby Krieger -- clarifications.

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Auto Adjust White Clip

Has anyone ever gotten this thing to work: Prefs: > Auto Adjust White Clip or Black Clip
I Need my highlights to be processed as 253 instead of 255 - is there something I'm missing?
Using Canon 1ds MKlll RAW files.

"Auto Levels" analyses your Image and applies a Levels adjustment based on a preset algorithm (similar to "Auto-enhance" in iPhoto, for example). The Auto adjust White Clip slider allows you to set what percentage of pixels will be set to full-luminance. (Hover your cursor over the slider for a ToolTip.)
This is very easy to see in practice. Select an Image with no adjustments applied, and duplicate it. Then with the Auto adjust White Clip slider set to the left, click "Auto" in the Levels Brick. Select the other Image, change the slider all the way to the right, and "Auto-Levels" that Image. Compare the two. Be sure to compare the histograms in the Levels Bricks: this shows you mathematically what the difference is.
Message was edited by: Kirby Krieger -- clarifications.

What is the benefit of using clipping paths for a knock out?

I found a posting saying they need someone to knock out the background of a lot of images using clipping paths. My question is, WHY use a clipping path? I know the rule of not using a selection tool such as the Magic Wand and then turning it into a clipping path and I know why that is. But if all is needed is for the background to be knocked out, why can't we just use the selection tool in the first place and just knock out the background from there? What is the benefit of that clipping mask?

Usually the term Clipping Path refers to turning a path into a clipping path (in the paths panel) for use in older programs such as PageMaker that don't support transparency.
For example if one wanted to import a file into PageMaker and only have a certain part of the document visible, one would make a path (or selection) around the object
and turn the path (or selection) into a clipping path. Sorta the same results you see in photoshop using a layer mask or vector mask.
Also clipping paths are used in certain printing workflows.
Without seeing the posting it's hard to say what they meant and in photoshop 6 vector masks were labeled as Layer Clipping Paths not to be confused with real clipping paths.
Old versions of photoshop also used the term Group With Previous to denote Create Clipping Mask.
photoshop 6:
Photoshop cs6:
Anyway clipping masks and clipping paths are two different things in photoshop.
layer masks, vector masks and clipping masks:
http://helpx.adobe.com/content/help/en/photoshop/using/masking-layers.html
an example of creating a clipping path:
http://www.clippingpathspecialist.com/tutorials.html

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Thank you.

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Internet Service Provider and Modem Configurations
What ISP Service do you have? Cable or DSL?
What ISP Modem Mfr. and model # do you have?
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What are the Non SAP data sources supported for Analysis workbooks?
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What are the steps to make it seamless for a customer to use the install program and then use the installed program?

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bhs67

This site https://msdn.microsoft.com/en-us/library/vstudio/2kt85ked%28v=vs.110%29.aspx provides a basic description of the Visual Studio Windows Installer.
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bhs67
Hello,
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In addition, as this thread
InstallShield LE not available with VS 2012 RTM? shared, even through there is a link to InstallShield LE in the New Project dialog under Deployment solutions, but it belongs to third-party that I would recommend you consider posting this issue
at the following forum to get supports about InstallShield.
http://community.flexerasoftware.com/forumdisplay.php?133-InstallShield
Regards.
Carl
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What is the "Auto adjust White Clip" slider for?

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