Neewer 10060557 metal Soft-release button for Leica M, Nikon, Canon, Hasselblad, Olympus, Minolta, Rolleiflex, Fujifilm FUJIX100 SLR camera with screw holes (10 mm) red (Electronics)
nice button. very classy on a black camera. Tactile feeling is much better than without him. However, I recommend a micro-drop of superglue for the thread. Because the mini size thread this button seems to me not as stable as the this remains for eve