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Negative effect of Exposure over layer below?
If Layer One is an adjustment layer with Exposure added (brightened). And Layer Two is a footage layer with Levels added and darkened. Is there a cumulative negative impact on the image quality? Because it would seem, if I understand the order of effects correctly, I’m darkening the image (with levels on layer two) and then brightening it (with exposure on adjustment layer 1), putting it through two layers of color correction. Seems to result in more noise.
Alternatively, I could put a duplicate footage layer on Layer One and Two with different Levels applied, and mask it so some shows through. This would only process one layer of color correction at a time, and might result in better image quality. Am I right?
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3 Replies
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another thing you could do since exposure and levels are 32bpc effects, set project settings to 32bpc and keep it lazy and push/pull pixels and the image won’t lose quality because the information will still be there, just invisible in case you want it back.
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Thanks for the thoughts.
I wish you could do one layer in 32 bit and another layer in 16 bit (as long as there wasn’t a cross-fade between them). But alas, I usually need a 16-bit-only effect somewhere along the chain.
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actually you can,
channels-arithmetic
. operator add
. clipping on – Clip result values leaving all rgb values at floor 0.I sometimes merge 16 and 32 comps together and use this to remove bleeding artifacts.
I often set it as an adjustment layer in mode saturation to clip protect my projects.
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