The Idea: I got myself a set of the Kenko extension tubes for µ-4/3 last week, and I set up a simple test in order to get a feel of how they work with my lenses. I wanted to test the focus range with all the different options for each of my lenses, and I thought this might be of interest to others as well. This is going to get picture heavy, and I'm going to do one lens per post to make it easier to read. The Lenses: First off, the Olympus 12mm f/2, which I've also got, is not practical to use with the extension tubes. Even with the 10mm tube only and at maximum focusing distance, the plane of focus in just a few millimetres from the lens. So that leaves the Olympus 45mm, 75mm and Panasonic 14-42mm. Links to each lens test here: Olympus 45mm f/1.8 Olympus 75mm f/1.8 Panasonic 14-42mm f/3.5-5.6 (Mega OIS) The Setup: I set up a simple 80x80cm photo tent on a table, with a Nikon SB-700 + softbox outside the tent at camera left, triggered with a phottix wireless trigger, and a reflector outside the tent at camera right. Camera used was a Olympus OM-D E-M5 on a small tripod. The subject used was my watch, which incidentaly I did not bother cleaning before the shoot, so don't mind the marks and dust on it... :tongue: The Pictures: The pictures were raw files, imported into Adobe Lightroom 4.3. Very slight adjustments were made, including a final sharpen after image resize. Focus was done manually in live view, and was not 110% in all the pictures. Razor thin dof, not the best technical setup in the world etc, etc... The main goal here was to test what my limits of near and far focus was with each lens and combination of extension tubes. Not perfect focus and quality. I'm just an amateur with simple equipment, limited knowhow and an idea. :smile: When I get my hands on more lenses, I'll try to do a reshoot with better equipment and update here.