Here is a much more modern example of my basic portrait lighting done with an APS-C format camera.
While this is not the same style as my previous post, I was more interested in the actual portrait and less interested evoking a "look" here, it is still the same basic lighting set up. One big light over to the left of frame, a soft transition to shadows and then shadows with less fill that many people like.
I'm less happy with the background; I wish it was less uniform in tone and more out of focus.
If I remember correctly this image was done with a conventional APS-C camera but with an adapted Hasselblad 80mm f2.0 F series lens. I should have turned the flash down a tad and opened up one more stop. It would also have been in keeping with my usual strategy to use brighter but less uniform light on the background. Live and learn. That's why we constantly practice.
But taken just as a portrait and not as an exercise in lighting I am very pleased with it. I think my friend, Lou, looks amazing.