Contrast / Gamma Different in Canvas and Desktop Preview

*The Confusion:*
The contrast of my video differs between the Canvas Window and Desktop Preview.
I assume the two are using different gamma settings. But I can't figure out what's going on, to know what those settings are and how to assess the final display picture.
*Screen Grabs:*
Here's a screen grab of the canvas, with the image at 100%. The screen grab does not show the full frame.
- - - http://epokhecutmedia.com/images/gamma-ts-canvas.png
Here's a full screen grab of image in Desktop Preview.
- - - http://epokhecutmedia.com/images/gamma-ts-preview.png
*What I've done:*
I've gone through every gamma setting I know of and can't match the Canvas and Desktop Preview or make sense of the difference.
Also, If I toggle between Display calibrations of 1.8 and 2.2 using the Display preferences in System Preferences, values in both the Canvas and Desktop Preview shift and still do not match.
*Another seemingly related thing:*
My Canvas window display jumps between different contrasts (possibly gamma values) automatically while I'm working.
For example,
- - - I'll have video frozen. I'll play it and the image with brighten across the mids with playback. However, after freezing it again it keeps the brighter value.
- - - When I'm using filter, such as the 3-Way Color Corrector, when I click to drag a slider, the image with darken across the mids. Sometimes, as I drag, the canvas will erratically jump back and forth between the two values.
*Why this is a problem:*
I can't do basic exposure correction, because I don't know which is the accurate value to work with.
edit by: FordPrefectRevisited, Screen Grabs added

If I may re-open this thread, let me ask the question FordPrefect only alluded to:
Given that I should be using a pro-level HD broadcast monitor to view everything, given that every piece of footage is different in the particulars, and given that the Canvas Window image is almost always different than any other playback system (Finder, QT, VLC Players, etc.), are there general exposure/gamma changes y'all make to account for the visual difference between the Canvas Window and other playback systems? If you're anything like me, you don't start from SCRATCH on every single edit... You have a few go-to filters with a few go-to settings, and then make minor adjustments according to the needs of the footage.
For instance, in order to get the exported image close in exposure to the ideal Canvas Window image, I usually go: Effects - Video Filters - Quicktime - Brightness and Contrast - and then adjust the Brightness to 0.85 and it seems to get close.
You guys have anything like that? Thanks for any help!

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If I may re-open this thread, let me ask the question FordPrefect only alluded to:
Given that I should be using a pro-level HD broadcast monitor to view everything, given that every piece of footage is different in the particulars, and given that the Canvas Window image is almost always different than any other playback system (Finder, QT, VLC Players, etc.), are there general exposure/gamma changes y'all make to account for the visual difference between the Canvas Window and other playback systems? If you're anything like me, you don't start from SCRATCH on every single edit... You have a few go-to filters with a few go-to settings, and then make minor adjustments according to the needs of the footage.
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So, I'm new to FC. I've been using Avid and compositing packages for my video over the last few years.
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I can tell the difference between SD footage that has been blown up vs SD footage that has been downres'd and then blown up. This is a case of the latter. The change from full screen to raw very clearly changes the decoded image prior to a scale to the monitor (or in the case of a raw, no scale for the monitor). Its different decoding behavior.
Again, the image quality and behavior on the m2v files is different and correct. Same source material. Same resolution. Different wrapper format and codec. But for reasons stated prior, not usable due to a FC slowdown with that wrapper format (unless someone knows of a way to overcome that).
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Your suggestion is noted but I will turn to other solutions before buying the thousands (if not tens of thousands) of dollars worth of storage required to keep all this footage as DV. That being said, I have transcoded a test clip to DV to check it out and it behaved no differently than the codecs listed prior. I did however, discover some new behavior that may be useful in figuring this out.
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I have a functioning xml importer script so I'll take a look and see if there is an element I can add to a clip in a bin that will result in the same "fix" without having to subclip. However, if anyone has any other ideas as to why the viewer and desktop preview is acting so very different playing a directly imported file versus a subclipped but otherwise unaffected file, specifically with regard to resolution or interlacing, I'd be interested to hear them.

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"MA_DAVIDLEE" <[email protected]> wrote in
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news:e39mte$las$[email protected]..
> thank you for reply and the url is www.cipr.com.tw. you
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