This is what I upgrade my Black Widow Thin Plate with: the beautiful and very robust SpiderPro Plate, intended for heavier cameras, even apparently cameras as small and light as the larger micro 4/3 bodies, such as my Olympus E-M1 body. This plate is a beautiful work of art, a joy to look at. But functionally, for camera bodies with Arca-Swiss style quick release plates, completely useless. Shortly after I got this, Spider came out with the masterpiece shown in the next two images.