Exposure warning
The exposure warning kicks into effect when one of the channels reaches 255, but the other channels may not quite be to 255 so the image will still be grey, not pure white.
Is there any way to set the exposure warning to kick in when all three channels reach 255 and the image is pure white, or change it to a particular channel?
See attached pictures as examples, background in CO set to white to clearly see the difference and the cursor was in the top left of the image for the RGB readings.
Setting levels white point to 245 makes the exposure warning fill the frame.
Turning off exposure warning shows grey in the corners of the image even though exposure warning suggested otherwise.
Moving the white point down to 235 makes the image background truly white.
Exposure warning in preferences is set to 255. Setting white balance off of white background brings all 3 channels together in the histogram and exposure warning behaves how I prefer it to, but that makes the subject to warm in this case.
Any suggestions?
http://charliechipman.com/media/original/--1-copy1.jpg
http://charliechipman.com/media/original/--2-copy1.jpg
http://charliechipman.com/media/original/--3-copy1.jpg
Is there any way to set the exposure warning to kick in when all three channels reach 255 and the image is pure white, or change it to a particular channel?
See attached pictures as examples, background in CO set to white to clearly see the difference and the cursor was in the top left of the image for the RGB readings.
Setting levels white point to 245 makes the exposure warning fill the frame.
Turning off exposure warning shows grey in the corners of the image even though exposure warning suggested otherwise.
Moving the white point down to 235 makes the image background truly white.
Exposure warning in preferences is set to 255. Setting white balance off of white background brings all 3 channels together in the histogram and exposure warning behaves how I prefer it to, but that makes the subject to warm in this case.
Any suggestions?
http://charliechipman.com/media/original/--1-copy1.jpg
http://charliechipman.com/media/original/--2-copy1.jpg
http://charliechipman.com/media/original/--3-copy1.jpg
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Not a proper answer to your question but just a comment on my workflow. I find trying to light product to solid white background usually over exposes the product and isn't as nice of a pic as leaving the white background between 245-250. then in photoshop or whatever you are editing in, just create a highlight adjustment layer and move only the highlight 5 or 6 notches until it is bright white. If I have to shoot a little less exposure because of a white product, will do a clipping mask then duplicate layer and lighten it way up so is 255 white and still will allow for natural shadows.
Otherwise will shoot on white or clear plexi and backlight it to get the pure white background but no shadows then.0 -
Thank for your input. I'm with you on it looking better using masking in photoshop, just trying to figure out a way to avoid the trip to photoshop if I can.
I'm curious, when you say you're making a highlight adjustment layer, what tool(s) exactly are you using for the highlight adjustment layer?0
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