Features [Seamless Connection] Specially designed replacement for Olympus E-P1, E-P2, E-PL1, E-PL2, Panasonic G1, G2, G10, GF1, GF2, GF3, can perfectly fit well and works well with micro four thirds MFT M4/3 mount cameras. [Multiple Usage Modes] Can use 10mm or 16mm macro extension tube separately, 10mm + 16mm in combination is also suitable, achieving different magnification at close distance and picture effects. [Auto Focus Function] With metal mount and metal contacts, the focusing is more smooth and fast, and the picture is clearer, perfect for macro photography. [Manual Aperture Control] Convenient for shooting in bright or low light environment, flexible to adjust light transmittance, achieving clear picture of higher quality. [Easy to Install] With red dots and buttons, convenient for installation, easy and quick to use, steady and loose-proof. Specifications Brand: FOTGA Model: FT1 10-16 Color: Red, grey (optional) Material: Metal Product Size: 5.7 * 5.7 * 3cm/ 2.2 * 2.2 * 1.1inch Product Weight: 72g/ 2.5oz Package Size: 7.2 * 7 * 5.3cm/ 2.8 * 2.7 * 2inch Package Weight: 86g/ 3oz Package List 1 * 10mm Macro Extension Tube 1 * 16mm Macro Extension Tube