I agree with Noah that 4K is extremely affordable at this point and if you are going to make the jump to anything you might as well “future proof” yourself. That being said, to me, the real advantage of most of the 4K cameras is there ability to still shoot in beautifully sharp, downscaled, HD formats. This gives the flexibility for now and for whatever jobs you may get in the future.
Both cameras that Noah recommended are good choices. The GH4 is probably the lower cost of ownership and if you are looking for the most “professional” camera, the additional I/O base (AG-YAGHG) that Panasonic has made for the GH4K really can’t be beat. It gives you all of the professional connections and audio meters that you would require in a broadcast environment while still giving you the flexibility of shooting with a DSLR. Micro 4/3 lenses are also relatively inexpensive for high quality glass. Also many options.
The Blackmagic Production Camera gives a lot of cool options as it is a Super35 global shutter with the ability to record 4K or HD ProRes. However, the cost of ownership I believe is higher as you will need to invest in a full battery system, more expensive memory cards, and you are limited to Canon or Canon mount lenses while Micro 4/3 can be adapted to nearly any lens. The Blackmagic camera also does not have the professional I/O that is available in the GH4K’s base unit.
Co-President at fourB Productions, Inc.
Blackmagic Cinema Camera, RED Scarlet-X, Panasonic HPX170, Canon 7D
2011 Macbook Pro 17″, 2.3 Ghz Quad Core, 16GB RAM
2008 Mac Pro 2.6 Ghz 8 Core, 10GB RAM
AJA IoXT, Blackmagic Intensity Pro, Blackmagic Mini Monitor
Adobe Production Premium CC, Avid Media Composer 7, Final Cut Pro Studio 3