Demo to show the colors from an old Pentax 110 18mm lens designed for a 110 film SLR camera many years ago. The adapter for the Nex cost $20. The lens I bought with the camera body for $25. I shoot with this a lot - there is some vignetting, but I don't post the images here because it is not a Leica lens. The lens has no adjustment for aperture. It is fixed at 2.8. I set the camera to 1/4000 sec and just go shooting.