Photography is a hobby of mine. I currently use 2 camera bodies, one is a DSLR (Canon 70D) and the other is mirrorless (Sony A7). The Sony A7 has a full-frame

Photography is a hobby of mine. I currently use 2 camera bodies, one is a DSLR (Canon 70D) and the other is mirrorless (Sony A7). The Sony A7 has a full-frame sensor, which is pretty crazy considering how relatively small it is (much smaller than the 70D body which holds a smaller 1.6 crop APS-C sensor) and under ideal conditions it produces better image quality than the Canon 70D (slightly higher megapixels, but really the physical size of the sensor is what puts it ahead with less noise, plus the Sony sensor technology has better dynamic range). The Sony A7 is the first camera I've used where the electronic viewfinder is bright enough and fast enough that I can stand using it over an optical viewfinder. And having reached that point it really opens up some great abilities that you can't get with purely optical, like focus peaking (real-time contrast/edge detection to show you which parts of the frame have the sharpest focus) and high zoom in the viewfinder (both of which are really useful especially when using older manual focus lenses which really shine on this camera). Also, just plain seeing the image exactly like the sensor does in terms of depth of field is a real game changer... and yes, you could previously do these with liveview cameras on a bigger LCD attached to the back, but the high-res, bright viewfinder is a really big deal for me as I hate holding the camera away from me while looking at an LCD since it is much harder not to cause sharpness-killing movement that way than when using your face and arms as a sort of bio-tripod. All that aside, DSLRs still currently win for fast autofocus. Pure phase detect autofocus is just so much faster than the contrast autofocus used by mirrorless cameras. For a lot of photos this doesn't matter, but for some it does. See, eg: http://gmcbay.com/slideshow?postId=d80f062f-46e1-44c0-81e7-9d8a6042ca0d&imgId=b3cea71c-0bf8-4c45-5142-e6df0852a6c2 http://gmcbay.com/slideshow?postId=d80f062f-46e1-44c0-81e7-9... That is a photo I took last weekend with my Canon 70D. I often carry both bodies (70D and Sony A7) with me when hiking, but there's no way I would have gotten those hummingbird photos with the A7 (regardless of which lens I was using on it) unless I was using manual focus and got really lucky with my timing.