Mito Colombi wrote:
What is the standard for a professional photographer to deliver a picture to a model?
8-bit sRGB JPEG set to a high quality setting.
If you try any other format, the model may not be able to read it properly. At least with 8-bit sRGB JPEG, it will look fine in any image viewer or any web browser on any platform. If you crank up the quality setting to near maximum, there won't be much quality loss even though it's lossy.
The only exception is if you know the model is also an expert at editing photos and they need a file for a specific and demanding output condition. Then maybe you would send whatever they ask for (16-bit ProPhoto RGB TIFF for example). But most normal people will not know what to do with that, or they will complain to you because the file looks wrong because their consumer software does not support 16-bit, alternate color spaces, etc. CMYK should not be output until you know the specs of the job/press so you can match the CMYK to it, and if the model is never going to send it to press then CMYK is the wrong answer completely. No, stick to 8-bit sRGB JPEG high quality.
