0.72x optical glass lens adapter for using Micro Four Thirds M4/3 mount digital cameras with Nikon F mount (G) lenses.
(Electronic functions are disabled.)
Reduces focal length to 0.72, adjust the image size to near 1:1, so that the focal length of the image is close to actual focal length of the lens, e.g. 50mm x 1.5 x 0.72 = 54mm.
Helps to increase the maximum aperture to 1 stop, also can use it faster by 1 stop.
Switching camera to "Shoot without lens" mode is essential on some cameras.
Allows focus infinity.
Blue spot will occur if lens is shot to sunlight or lamp directly.
With front and rear caps.