What happens when a Leica M lens is mounted on a Panasonic DMC-GX7 body?
Panasonic GX7 is a mirrorless camera of the micro fourth third system, in short we call it M4/3 or MFT. It is a system designed by Olympus and Panasonic on 5 August 2008. The sensor measures 18 mm × 13.5 mm, roughly 30% less than the normal APS-C sensor. The image aspect ratio is 4:3 rather than the 3:2 used by most of the DSLR cameras. Of course you still can change the dimension to 3:2 in the camera by cropping.
Panasonic has many Lumix lenses for GX7, with automatic focusing capability, but I do not want to invest in another system. The way to get around is to mount a third party lens by using an adaptor. Many famous brands such as Metabones offer such a solution. Even Panasonic has created an adaptor for this purpose. But the price is around AU$150 or more, can’t say too cheap. Honestly, the success of Leica M lenses is their optic quality and smaller sizes. They are manual operated lenses, no need to be big and trunky. When you compare an ordinary 35mm Leica lens with a Canon counterpart, you will notice the difference. The Noctilux-M f/0.95 is an exceptional lens, both weight and price.
My solution is from a eBay reseller. The lens adaptor is cheap, less than AU$10 including postage from mainland China. Most importantly, it works. Mounted my Summarit-M 90mm f/2.5 on the GX7 body, I can take really nice pictures. The focus peaking is working well and I have no difficulty to focus the subject.
If you want to ask me which brand is the best, I have no clue. Do a search, you will find many. At a price of less than a rum steak lunch, I am satisfied with the image quality of these two featured photos.