This is a very couck and accurate method I have been using for setting up a custom white balance on my sony a6300 for a while now, with great results! The main goal of this method is to prove an accurate white balance fast without the need for any additional equipment.
This method will work on all sony cameras which have the picture profile option (a6300 a6500 a7sii a7ii a7rii a7iii a7riii rx100 ...)
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