Meike MK-P-AF3B Macro Auto Focus Extension tube for Panasonic Olympus Micro M4/3 Specifications: Size/Weight: Φ57 x 10mm /21g (approx. ) Size/Weight: Φ57 x 16mm / 27g (approx. Since the magnification changes according to the focal length of the lens,you can easily make close-up shots of small subjects,insects or flowers,Furthermore,electronic signals between the camera and lens are transferred through the electronic contacts of the Automatic Extension Tube for Micro Four Thirds,enabling you to use all of the camera's shooting modes,but depending on the shooting conditions,exposure compensation is required. Techart Autofocus Adapter MEIKE MK-P-AF3A Macro Extension Tube Fit Panasonic /Olympus GF5 GF6 GM1 GM5 GX1 GX7 G3 E-P5 E-PM E-M1 E-M5 E-M10 E-PL5 E-PL6 E-PL7 Mirrorless Camera MEIKE Verlengbuis Set Panasonic Olympus Fuji-shi, Shizuoka-ken, Japan - October 27, 2019: MEIKE Macro Extension... ) Mounting the Automatic Extension Tube for Micro Four Thirds: 1., Mount the TUBE on to the lens first. Automatic Extension Tube for Micro Four Thirds is an accessory designed for use with Micro Four Thirds Lenses to shoot at close distance with higher magnification. Meike Automatic AF Auto Focus Multifunctional E-Macro Extension Tube MK-C-UP Macro & Reverse Mount On Lens with 58mm 67mm 72mm 77mm Adapter Rings for Canon EF/EF-S Mount Lenses Compatible with All Micro 4/3 system Camera Include Olumpus and Panasonic Micro Four Thirds.