TheGF1 iscompatible withan optionalLiveView Finder(DMW-LVF1), which providesthe full-timeliveviewfunctionboasting 100% field of viewregardless of the lens to attach.
The holder start in a locked vertical position, and to attach a lens you just bayonet it into place, securing the glass and allowing the holder to be lowered.
But desire spawns invention, and Mandel is seeking a patent on a simple, platelike device that enables him to attach a conventional 35mm Nikon lens to a digital astronomy camera.