I am a photography enthusiast and want to buy a mirrorless camera/mono camera. Please tell me about the advantages and disadvantages of Panasonic GX3, Olympus E-PL1, and Ricoh GXR.

The Ricoh one seems to have been abandoned. It seems to be good for adapting Leica lenses, but the rest is just average.

Panasonic only has GX1/GF3. The sensors of them and the E-PL1 are all M4/3 specifications, with an area of ??1/4 of the 35mm full frame and a lens conversion factor of 2. Their lenses are also interchangeable.

Buy a new body instead of an old one. Both Panasonic's single-unit and E-PL1 use Panasonic's CMOS, and the picture quality is not as good as Sony's. Since E-PL5 is equipped with Sony's CMOS and has some EM5 up and down technologies, it is the most suitable among these models.

As for the lens, since it is an interchangeable lens system, it is natural to choose the lens according to the subject matter. If you don’t know much about this, just use a condom, which is enough for daily use.

Other models:

Sony's NEX series have large bases, good control and image quality, but the disadvantage is that the lenses are not rich enough without adapters; the Alpha series of single cameras are almost like SLRs;

Panasonic's GH series has good camera effects and is unmatched among cameras;

Oba's EM-5 is not inferior to mid-range SLRs in terms of performance, control, image quality, etc. , the price is also the same;

Fuji’s XE and (operation, focus, continuous shooting, etc.), it also has some unique and interesting functions, but the image quality is low and the control is not convenient;

Canon's EOS-M seems to be not mature enough at present, and the response is slow. , it’s inconvenient to control, and the picture quality is mediocre. Apart from being used to connect my own SLR head, I don’t see any other selling points.