I don’t use an SLR.
I almost never make settings on my camera.
I don’t use flash.
I don’t use a tripod.
I don’t use a light box.
I don’t have a studio.
After many years becoming tired of lugging bags of SLR bodies, lenses, flash equipment, and tripods, I gave them all away several years ago. My son now happily takes pictures of my grandchildren with them. I own only one tiny pocket-size point-and-shoot camera (plus the camera on my iPhone). All my photos are taken hand-held. All the knife photos that I can remember were taken on the “Auto” setting. My “studio” is mostly outdoors on the patio, or the top of a block wall, as shown below. If it’s raining, I sometimes use a rug or bedspread indoors as my background. Here is a picture of my “studio” and a knife picture I just now took there.