Metal Interface M4 / 3 AF extension ring macro Ring Olympus Panasonic GF3 GF5
Wei Zhuo electronic automatic extension ring
Model: DG-M43
Specifications: two: (1) 10mm (2) 16mm
Automatic close-up trap containing two lengths (respectively 10mm and 16mm) different access loop， which could be combined to obtain the desired magnification. These can then circle with the body of TTL metering and AE mode. Autofocus， adjustable aperture. Plus close photo laps later as the linkage between the body and the lens.
Supplementary information:
Close-up lap two， one has contact support automatic metering. Another structure is very simple， there is no contact， nor automatic metering.
In fact， the manual extension rings from the effects associated with the contact is no different， but the need to manually adjust the combination of aperture and shutter to control exposure. While contact is through contact， allowing the camera to continue to get parameters from the lens， in order to continue to use the camera's automatic metering function. Two configurations circle principle is extended lens image distance， in order to achieve greater image magnification.
Note: The extension rings for macro shooting only， so close to the focus， and put on the distant future can not focus as normal.