D800 Orange Burn: Little Help, Please?

Mike and Ed:

If these were my images or my clients, I'd be happy to post full-sized images.  As it stands, I cannot.

Here are two images from the same shoot, taken a few minutes apart.  The subject is the same distance from the softbox.  The camera settings are the same for each shot, as well; the only difference between them is focal length.

Orange Burn:

No Burn:

I do not know what the ISO was set to, but I can't imagine that it was very high as the native images have no noise in them at all.  Neither do I know the K setting.

Photogenic 1250s + softboxes are used in the studio; Lumedyne Next Generation heads are used for location shoots.