Handy little remote shutter release with good tactile feedback. Has the bottom left, because those little things tend to disappear so, a hole in the plastic, so that the shutter button on key ring etc. are fixed and can and will also be delivered in a small black bag that can be attached to the strap of the camera. The seam of the black bag is the way red, ie an optical equivalent to Canon L lenses, what was certain intention. A little tip: the shutter can for example also on the 5D Mark II can be used, although Canon because claims otherwise.. There's nothing like the simple trial and error.
