Hi , I used to have cameras in the past for random things, but wasn't too serious. Since the advent of Smartphones like many others just have used that for a good half decade as my "picture taker" Today, Im seriously interested in Film /photo. I am now by the nature of my current ventures am required to acquire professional knowledge and camera equipment that suit my needs. I am of the philosophy that it is a waste of capital to purchase a super entry level camera , so if I'm going to drop $300 I might as well drop up to $800+, for everything I require, I know these cameras can be very expensive and there are so many options, I spent over 15 hours researching within last week, and finally I am here asking you the forum for final advice before I pull any triggers. *Currently the models i'm drawn to after my research are as follows, <Sony Alpha A6300 <Panasonic G7 <Panasonic GH4 <Nikon A900 or D300 but I am open to hear any and all advice., be as harsh as possible as I want to hear it how it is. My budget is $800 I require. -To film in 4k -Film video indoors in an apartment with 1 or multiple people on camera interacting and moving around - Film Tube style Vlogs and Review style videos. -Film out doors in wooded / nature type areas, such as hiking /climbing trips - Film events such as a concert or Flea Market walkthrough. - Have ability to either shoot in night vision or adaptable to night vision attachment - * Film longer than 29.9 minutes, or can be hacked to remove that governor - Has adapter for a plug in surround microphone/ 3.5 jack - Does not easily overheat - Good video tracking - I prefer a mirrorless, but can settle . - Obviously needs HDMI out incase I want an Atomos Shogun.