Can be at the Canon EOS 6D of the viewfinder with the different settings prima adapt and fix the aluminum plate very securely to the camera base. The focus of the review is sufficient, it shows the image of LCD panels in LiveView especially in bright outdoor light protected at. These were the main reasons why I chose this. The durability will be seen over time only because the viewfinder housing made of plastic, the latched slotted mounting bracket made of sheet metal, but is designed to save weight. The delivery of the delivery was fast despite Standard Shipping. Many Thanks!