I cannot confirm how to set the WB on: Nikon cameras; Sony DSLRs, "NEX"; >10-year-old DSLRs; problematic cameras (Ex: E58/FFB KM Maxxum 7D/5D). YOU ARE ON YOUR OWN WITH THESE!

Early entry-level Sony Alpha cameras (a5X00) are primarily SW-driven. Advanced cameras (a6X00 and full-frame) are hardware-controlled. This is the only difference between body "types"; everything else is the same.

Sony: Sony a5X000 (SW driven) Sony Alpha (Advanced, a6X00 and up) Sony NEX (FOR NEX-5N; NOT CHECKED)

Switch the camera into a Manual mode (P/A/S/M; doesn't matter). You MUST be in a "manual" mode to use custom WB settings.

Open the menu and select the following: Camera settings>White Balance.

NOTE: The location of the white balance setting varies from camera to camera. Keep this in mind if you do not see the setting as shown in my demo a6000. (Ex: a6000 is Line 4, a6100 is under Line 9 and a6300 is under Line 5.

In addition to menu deviation, Sony also has removed the option to use a photo to set a custom WB; you must dial in the color temperature of your studio lighting.

Select the White Balance option, and scroll down until you see Custom Setup. Take a picture of your lighting setup and press the Enter button to save it to the camera.