Hi - I have a Clearviewer (premium) optical viewfinder for sale. The tripod mounted unit is set for Sony NEX cameras. Here is the website if you aren't familiar: http://www.clearviewer.com. This is a handy gadget that I found helped out a ton combined with focus peaking with old manual focus lenses. It is especially useful for those that don't have the option of adding the pricey EVF to their cameras. It comes with a tripod screw/knob as well. $40 shipped to USA via USPS First Class. Please PM if interested.