Fotasy Adjustable M42 Lens to M43 Adapter, 42mm screw Mount to MFT, fits Olympus E-PL8 E-PL9 E-M1 E-M5 E-M10 I II III E-PM2 E-PM1 Pen-F E-M1X/ Panasonic G7 G9 GF8 GH5 GX7 GX8 GX9 GX85 GX80 G90 G91

Wow! Just Wow!My brother gave me a 300 mm. Canon lens that he picked up at a garage sale for my birthday. Of course it wasn't going to fit my Lumix 4/3 camera mount without an adapter, which this is. For a very modest price, I now have the equivalent of a 600 mm. lens. The fit is excellent, and, while focus is now manual, the camera's electronics do seem to handle the exposure just fine. The photos show a few deets: First, there's a tab on the lens that has to fit behind the rod in the adapter when you put it together. The next two photos show the combination of the lens and camera. Finally, I took a couple of photos from my patio. The first is with the Canon lens and adapter, the second is with a "normal" lens. Look close, there's ducks in both!OK, so if you have a lens (or lenses) that you want to use with your 4/3 digital camera, this adapter will let you do just that. And if you have multiple lenses, get two and just one on the lens you'll be using most often!

I just wanna say that I never write reviews but anyone who says that is a bot. I am not a bot. I am an amateur that is just getting to know cameras and by accident bought the wrong lens that didn’t go on my Lumix G7..,eventually, I figured out that this was the adapter that would unlock that for me. Now I am shooting vintage style BOKEH photos and really enjoying that I don’t really look like an amateur suddenly. No autofocus but you do get $1000 lenses for pennies on eBay now lol!

Item arrived and worked as described. I can now use my Dad's old Lenses which haven't seen use in decades.

If you read the reviews or the MFT forums, you quickly learn that these low-cost adapters are very variable in quality. I may have lucked out, or Fotasy may be one of the better brands, I cannot tell which. The one I got fits very well onto the camera body (Olympus E-PM1). The fit on the lenses is very stiff, due to the springs cut into the bayonet mount. The bayonet flanges have a slit machined behind them that acts as a spring, holding the lens very tightly. This is the standard design of the Exakta mount, and it works well on this adapter. It's a good thing. It means you have hold both lens and mount firmly and apply some steady strength when turning it. Twist but don't force.The little lever that engages the lens' locking pin barely locks on my copy of the adapter. You have to manually close it, because the fit is so close that the little hair-spring in it can't force the lever closed. It would probably benefit from being filed out very very slightly, but it works well enough that I'm not going to bother with the hassle of removing it and filing it.Most important: as expected the adapter is slightly short. That is reportedly the case with most of these low-cost adapters. The lenses focus past infinity. To achieve proper infinity-stop focus, you must remove the adapter's face plate and put some thin shims behind it. All you need is a tiny Phillips head screwdriver, a pair of scissors, and a sheet of aluminum foil. You remove the four screws holding the face plate, and cut four shims about 1/4" long and 1/8" wide. You can place these next to each of the screw holes (you don't need to screw through the shims.) My adapter needed four thicknesses of standard-weight Reynolds Wrap aluminum foil, but yours might be different. Test the camera with your longest focal-length lens first, and focus on something really far away, like the moon, with the aperture wide open. It took me about half an hour of trial-and-error to get it shimmed properly. Attached photo shot with Schneider Xenar 135mm on shimmed adapter. Note the sharp craters visible at the top edge.

This little mechanical ring, which has no glass in it, is very useful and well worth the money, if you own a mirrorless Micro 4/3rds camera but also own lenses for Nikon. I have a large number of older Nikon lenses left over from professional use years ago, and this little ring allows me to use almost all of them on my Olympus mirrorless camera. The IBIS (in-body image stabilization) of the Olympus actually makes these older lenses more functional on mirrorless than they are on the original Nikon cameras they were designed to work on.I love to use my older Nikon manual focus lenses on one of my Olympus cameras. My auto-exposure in Aperture Priority mode still works fine using the adapter,, and you get some interesting telephoto effects. For example, my old Nikon 200mm F/4 lens, which is quite small and cost me $35 used, becomes essentially a 400mm f/4 with image stabilization. This is a lot of fun for birds and other distant objects. Or you can take that 50mm f/1.8 lens that came as standard with your old film camera, and turn it into a very nice 100mm equivalent portrait lens.If you have newer Nikon G lenses that don't have aperture rings, this adapter won't work, because your lens will default to its smallest aperture and you won't be able to change it. There is another adapter that has an aperture ring built in for those lenses which only costs a few dollars more. I've been using the Nikon to Micro 4/3rds adapter as an example, but you can get these for virtually all brands of older lenses that will work with APS-c and Full Frame mirrorless cameras.