http://froknowsphoto.com/niokon-d4s-g... Click Here to download all 33 test images and read the entire article.One of the issues I had with the Nikon D4 was how it tracked subjects. It sometime had a tendency to back focus or miss focus from where I wanted it thought it should be. With the introduction of the Nikon D4s, Nikon brought out a mode called Group Area AF. This mode is supposed to help you when shooting in continuos focus to keep the focus from shifting away from the subject. Canon on the other hand has an entire manual dedicated to just setting up the different auto focus modes. This is something that I think the Canon 1D X does better. Yes there are a million options to set but once you understand them and lock them in you are good to go. Nikon doesn't really give you many options to tweak when it comes to customized how long a subject stays in focus vs shifting the focus to something else.So what could I do to actually test out this new focus mode? Could I sit in a studio and take test shots trying to find it's "mark" or could I go outside and shoot real world pictures. I chose to venture outside with my neighbor who offered up her dog Corona as our subject. Click the link above to read the rest of this article.To connect with FroKnowsPhoto please follow belowhttp://froknowsphoto.com/flashguide/ Check out the FroKnowsPhoto Flash Guide.http://froknowsphoto.com/fro-video-gu... FroKnowsPhoto Beginner Guidehttp://store.froknowsphoto.com/Facebook: http://www.facebook.com/froknowsphotoTwitter : http://www.twitter.com/froknowsphotoGoogle : https://plus.google.com/u/0/116504838...Please Subscribe http://www.youtube.com/subscription_c...

タグ: jared-polin, froknowsphoto, i-shoot-raw, fronation, first-person-shooter, group-area-af, nikon-d4s, nikon-d4s-auto-focus, nikon-d4s-vs-nikon-d4-autofocus, focus-testing, auto-focus