My photography is dealing with a lot low light, faster speed and high ISO. Sony a7S solve my problem.

This is my first DSLR camera that I buy and stayed impressed with quality photography and video. Very pleased with purchase, I recommend it to everyone.

I've used many cameras throughout my career from Canon, Nikon, Fuji and other Sony's like the FS-100. I enjoy using the A7s so much for video it a small footprint with a big punch and opens up new windows in low light situations. We can actually get usable footage and photos in low light and at depth of field that isn't paper thin! I use the A7s with a smart adapter to Canon EOS lenses as well as i own the 16-35 F4 Zeiss and 28-135 F4 cinema lens Sony has. Honestly Between the 16-35 and 28-135 i don't even use my Canon glass much any longer. I find that the quality and coverage i get from those two native lenses give me more than i need for video/photo work. I would recommend this little gem to anyone who wants amazing video quality in low light. The only draw back and for me its really not a issue is the lower resolution of the sensor but... unless your actually printing large prints its more than enough for 90% of the work i do in weddings and events where most of my work is posted online. I sold off my Canon bodies and am not looking back!

The Sony A7 series moves into professional territory. I have owned the NEX 7 for several years and loved it. For those who don/t know, this was the trail blazer into mirrorless. But that had the smaller APS-C sensor. This series are full 35 mm sized. The A7S is a low light specialist. Also a video specialist. The sample below was taken at night with no flash and no tripod. It says almost all i need to say. If you ARE a professional and already own a suite of Canon or Nikon lenses then you probably should stay with your brand. But if not (as I was not) then this is the way to go. Even more so if you are the advance amateur. Again - there are some things the $5000 Canon with a $3000 lens can do that these may not. But there are things this does that the Canon cannot. And if you are looking for just one camera and a stretch purchase, start with this!

Has amazing quality, advanced features, light weight. I can control the (key features of photography) much more rapidly than my old dslr camera in the past. Many options/accessories you can add...make it one of a kind for yourself