Sigma
I honestly though the cleverest product at the entire show came out of this company: it isn’t the DP1 Quattro, nor is it the 18-something super zooms or the warmed over super tele zooms: it’s the clip-on finder for the LCD. This instantly solves two problems for the vast majority of live view cameras: firstly, accurate focus; secondly, stability. You no longer have to hold the camera at arms’ length, and you have a much larger view than if you’d included an EVF. Plus it’s detachable. Unfortunately, it does nothing to improve the camera’s ergonomics. I’ve personally given up on Nikon’s viewfinders for adequate focusing with the Otuses, and am using a Zacuto 2.5x Pro cine-finder on the D810 with live view instead – using that, I can pull focus on moving objects at f1.4 anywhere in the frame with an 80% hit rate, with critical sharpness. By comparison, I manage perhaps 30% in the centre using the optical finder, which has a custom micro prism screen, and has also been shimmed/ aligned. Go figure.