<p>Forgive my poor English, I am a Brazilian photographer who works with hasselblad, I'll try to answer your doubt. Yes there is a easy way to do a custom white balance on a H4D Hassel. You assign a button with the Gray Balance Exposure function, and you can have a gray card, expo disc or focus on any gray part from the scene, and just press the assigned button and you will have a instantaneous correction image to use as reference.</p>
H4D-40 (H4D-50) and custom white balance
in Medium Format
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