I have good M4/3 lenses, I bought this to try and capture some special old results achieve. no Decent lens, acceptable results across the frame, no vignetting, no aberrations, no special effects. But. The aperture ring is sloppy and lacks detent stops. It will be a little more open and almost completely closed - there will be no light. Marked are levels 1.7, 2, 2.8, 4, 5.6 and 16. No. 8 or 11. The focus ring is grainy. Neither ring has an index mark, so good luck figuring out the settings. Using the supplied M4/3 adapter I had to remove the three mounting screws and rotate the mount 120 degrees to bring the markings closer to where they should be. be in front of the camera. It has a 35mm filter thread, so you'll need a 35-37mm adapter (which looks nice on the lens) if you want to use filters, a lens hood or a better cap. https://www.amazon.com/gp/product/B089RCHFCL/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1 In general, if you need this focal length and don't have much money, it might be for you. But those who expect great "special effects" will be disappointed. Image quality is actually pretty decent.
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