Photographer bitter, I used every conceivable reflex enclosures, the entry level model pro body, through the range "expert, and at major manufacturers photograph. My last baby was a Nikon D700, housing" full frame "to the fabulous picture quality, but big, bulky, expensive and heavy, we do not always have the courage to take with you ... Failing to get used to the loss of intrinsic quality to the compact use, I tried a solution "halfway", with the purchase of this hybrid case to mount m4 / 3 (spouse format Olympus and Panasonic, offer a wide range of housings but also a very wide range of objectives). I'll make it short, this little device is absolutely all. If in Auto mode it will surely come out good shots in total beginner in expert hands and with suitable optics, it is able to compete with a pro DSLR. Against which he has only two weaknesses: AF continuous mode (! Almost useless) and less control over the depth of field (you beautiful background of fuzzy, but with less extreme a reflex). These two limitations are INHERENT format m4 / 3 and definitely not attributable to the GX-1, which also displays not only very fast autofocus, but still remarkably accurate. Menus are reasonably clear and detailed, the user interface is excellent (unlike that of Olympus on similar cases, nightmare!), Numerous control buttons for Direct access to all important functions without having to delve into menus. In addition, the touch screen, which I took for a gadget before using this model, is a revelation, and quickly becomes indispensable (but you can turn off, which would nevertheless be a shame). The reactivity of the case is excellent and offers a high level of sophistication and settings for advanced users, and the image quality is simply bluffing! It is a pity that we can not attach an image file to prove it ... The rear screen, which serves sight unless you buy an external electronic viewfinder LVF2 remains highly visible in good weather, except in cases extreme sunshine. In short, a small box (I slipped into my purse!) Has become an indispensable companion, able to match 90% of the image quality of a high-end SLR, and in many cases more pleasant to use.