I'm a little disappointed with this purchase. In fact the timer (which sounds like that of a kitchen!) Is not powerful enough for a canon SLR 500D (30mm lens). It is at best a 3/4 turn. I can also add a slide if the weight made the switch. It is far from 3.5 kilograms announced! Lack graduated reference does not allow fine adjustment. We must also mention the last quarter turn. If the screw is standard.
Last thing: I received a package open and timer were traces of wear, I do not think it is new. I no longer buy from this seller.
