This is shot I took with my Nikon D750 and again this is taken with a technique called Light painting. (No off camera flash is used in this picture). I know that this is not a world class product or commercial photograph but this is great example for beginners who doesn't own expensive off camera flashes, for this type of shot you only need your mobile flash light or any cheap household torch light and little bit of Photoshop knowledge. I took 9-10 pictures of this knee brace and then composite them together in PS.
Settings used for this picture is:
Iso 200, f25, 25sec shutter speed.
And I used Tamron 90mm macro lens.