Just three days after the formal announcement of Panasonic's 4K GH4, and before Panasonic has announced pricing or availability for its new camera, Blackmagic Design has cut $1,000 off the price of its Production Camera 4K, bringing the price down to $2,995 (U.S.). That should be below the price of the GH4 plus its dock. In addition, as I wrote yesterday, the GH4 will need an external video recorder to take full advantage of the camera's 4K output, while the Production Camera 4K has a built-in SSD dock, which makes Blackmagic's camera an even better deal. The Production Camera 4K also has a Canon EF/Zeiss ZE mount, compared to the GH4's Micro Four Thirds mount, which could be very important if you've already got an investment in Canon lenses.
I suspect that Blackmagic was planning the Production Camera 4K's price drop as a big announcement at NAB in April, but the company decided to make the announcement early after seeing Panasonic's moves. It's pretty amazing--in the space of four days, we've gone from no 4K cameras under $3,000 to two.
Monday, February 10, 2014
Sunday, February 09, 2014
Panasonic's GH4 lowers the bar for 4K pricing, but are the compromises worth it?
Panasonic’s flagship GH series of Micro Four-Thirds ILCs has
developed a strong reputation as cinematography cameras, starting with the GH2,
which had its firmware hacked to enable much higher bit rates than the stock
model. The GH3, introduced last year, took many of the capabilities added by third parties and built them into the base camera. Last month, at the
Consumer Electronics Show, Panasonic showed a prototype of a new GH that looked
almost identical to the GH3 but supported 4K video. As of this weekend, we’ve
learned the specifications for the new camera, called GH4, but not the price or
release date.
The GH4 16.05 megapixel CMOS imager doesn’t break any
records for still imaging, but it does support 4K video at both standard
resolutions: Ultra HD (3840x2160 @ 30p,) the broadcast/video 4K standard and
the resolution of consumer Ultra HD displays, and Cinema 4K (4096x2160 @ 24p,)
the baseline standard for theatrical production, post-production and
exhibition. In 4K mode, it uses IBP compression with I and B frames at 100mbps,
while in 2K mode, it supports All-I compression at 200mbps.
The GH4 has an interesting (and confusing) approach to how
it handles storage of 4K video: When using an SD card, video is stored in 8-bit
4:2:0, and is output to the HDMI terminal as 8-bit 4:2:2. If you remove the SD
card and use an external recorder, the HDMI output is 10-bit 4:2:2. You can
also opt for a dock (Panasonic refers to it as an “interface unit”) that
provides two XLR audio inputs with LED meters, four SDI outputs (two of which
are 3G) and a 12VDC power socket. The SDI outputs can presumably drive an
external recorder and monitor simultaneously at 10-bit 4:2:2. The dock won’t
win any design awards—it just about doubles the size of the GH4—but it does add
the interfaces that professional users need (or are forced to add
with third-party hardware.)
Panasonic’s approach to storing 4K video means that an
external recorder will be a necessity. In this regard, Blackmagic Design’s Production
Camera 4K (the camera most likely to be compared to the GH4) has an advantage,
because users can insert a SSD directly into the Blackmagic camera, eliminating
the need for an external recorder.
I have to admit that I’m disappointed with how Panasonic
chose to implement storage on the GH4. It would have been nice to be able to
use the camera in a handheld mode without a lot of additional hardware, but in 4K mode, the
SD card is only good for proxy recording in 4K mode. (To be clear, you can store 4K video on the SD card, but if you're serious enough about 4K to put up with all the other issues you'll need to deal with in post-production--massive storage, faster PCs, bigger monitors, etc.--8-bit 4:2:0 won't cut it.)
Update (March 10, 2014): Panasonic has revealed prices and availability dates for the GH4. The GH4 body's suggested retail price is $1,699.99 (U.S.). The dock (officially called the DMW-YAGH XLR/SDI Interface Unit) is priced at $1,999.99. If you buy both the GH4 and dock as a bundle, it's priced at $3,299.99. I’d love to see a third party develop a more elegant (and cheaper) dock, but there may not be a big enough market for it to make financial sense.
The GH4 is one of the least expensive ways of
getting into 4K, if not the least expensive way. However, as we’ve learned from Blackmagic’s cameras, inexpensive means compromises, and the GH4 is no exception.
It remains to be seen if the GH4’s compromises are ones that you can live with.
Labels:
4K,
Blackmagic Design,
GH4,
Panasonic,
Production Camera 4K,
Ultra HD
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