A macro extension tube is a wonderful substitution to expensive macro lenses. It maintains the original optical quality while transforming the lens into a macro lens. It is far more desired then the add-on close-up lenses, which will alter the optical quality. The extension tube will work with all Micro 4/3 (MFT) cameras. The camera mount coupling adapter and lens mount coupling adapter can be used independently of the extension tubes or you can add in the tubes for extreme Macro photography. Because no other optical components are added with this kit, the image preserves the original optical properties of the lens. This is an affordable and simple way to turn your existing lens into a MACRO LENS. This tube set includes a lens-coupling ring and a body-coupling ring; three extension tubes of various sizes are also included to build up to the desired magnification. Life size image can be achieved with this set up. See details specification at the table below. Specs are based on a 50mm f1.4 lens. Compatible Cameras (including, but not limited to) Olympus PEN E-PL1, E-PL1s, E-PL2, E-PL3, E-P2, E-P3, E-M, OM-D, E-M5, E-M10 Panasonic Lumix DMC-G1, G2, G3, G10, GX1, GH1, GH2, GF1, GF2, GF3, GF5, GH4 Panasonic AG-AF100 Mirrorless Digital Cameras Black Magic Pocket Cinema Camera (BMPCC) The extension ring set has no electrical contact, so you will have to set your camera in manual focusing and manual exposure, or aperture priority mode for metering.24 month manufacture warranty. Any combination for various Macro Effect. Fits Olympus PEN E-PL1, E-PL1s, E-PL2, E-PL3, E-P2, E-P3, E-M, OM-D, E-M5, Panasonic Lumix DMC-G1, G2, G3, G10, GX1, GH1, GH2, GF1, GF2, GF3, GF5, AG-AF100. Kit includes camera mount coupling adapter, lens mount coupling adapter, extension tube 1, tube 2, tube 3.Maximum Focal Length: 0.01 Millimeters. Camera Lens Description: 4. Compatible Mountings: Canon EF. Lens Type: Interchangeable. Brand: Fotodiox. Country of Origin: China. Manufacturer: Fotodiox Inc. Date First Available: June 5, 2011. Is Discontinued By Manufacturer: No. Best Sellers Rank: #32 in Lens Extension Tubes. Customer Reviews: 3.7 out of 5 stars 163 ratings 3.7 out of 5 stars. Item model number: Macro-Tube-MFT. : B0054EPPZM. Item Weight: 3.53 ounces. Product Dimensions: 6 x 6 x 6 inches.