Let’s divide this into three parts:
- Comparisons and Tests
First of all, Blunty reviews the Panasonic GH4:
The GH4 delivers video quality surpassing many professional video cameras. Video can be recorded in a variety of formats, from efficient AVCHD and AVCHD Progressive, to 200 Mbps All-Intra and 100 Mbps IPB MOV and MP4 formats. And because the GH4 is a global camera, the system frequency can be switched between 59.94 Hz (23.98 Hz) and 50 Hz, yielding a variety of recording options including 23.98p, 25p, 29.97p, 50p, and 59.94p. The system can also be switched to 24 Hz to capture true 24p in HD and 4K resolutions”.
Here’s a quick short shot on the Panasonic GH4 by ruban Cam:
Resolution: Cinema 4K, Picture Profiles used : Portrait and CineV with no fine tuning.
Lenses : 7-14MM Lumix, 25mm 1.4 D Leica Lumix, 58mm 1.2 Rokkor, Nikon 105 2.5 Ai.
Edited in FCPx 10.1.1, Except the shot in the water, all the slow-motion were done using FCPx tools. The water slow-motion was done in AE CS6 Timewarp with Pixel motion (@25%). Last Moon shot is a composite in FCPx.
Finally, Philip Bloom has a running GH4 page set up here.
Comparisons and Tests
compares the Panasonic GH4 to the Red Epic and the Canon 5D Mark III with Magic Lantern RAW:
400% Epic (left) vs. GH4 (right) for those that think we may have missed focus on one.
Here’s another comparison of GH4 to the Red Epic by Daniel Peters:
Yes EPIC Wins, RAW, 5K, more fps, redcode, etc
BUT….WOW not bad Panasonic
remember this is a £1,200 camera shooting 96fps in only 1080p vs a much more expensive EPIC
Epic file was downscaled to 1080p
Griffin Hammond compares the Panasonic GH4 to its older siblings, the Panasonic GH3 and the even older GH2:
I test my new Panasonic GH4, side-by-side versus my Panasonic GH3 to see a comparison on crop factor, rolling shutter, high ISO, dynamic range, slow motion, wi-fi, and various bitrates in 1080 and 4K.
Mahalo Video also posted a moire test against the GH3 and GH2, with these results:
… comparison shows that there’s less moiré for the GH4 in 4K mode than when in 1080 mode, that the GH4 in 1080 mode has similar moiré as the GH3, and surprisingly it shows that the GH2 has less moiré than the GH4 in 1080 mode.
Giulio Calisse compares the Panasonic GH4 with the Canon 5D Mark III at ISO 6400:
Just grabbed a GH4 today and gave it a quick low light test next to the 5D Mark 3!
I tried to make this the fairest possible test:
There are a lot of curve, contrast cine & dynamic range options in the GH4 that influence the noise levels in the image (and give you INSANE dynamic range), so I stuck to the following settings to really compare the sensor performance:
Picture Profile standard, contrast -5, sharpness -5
Hilights & Shadows default(0,0)
Picture Profile standard, Sharpness minimum, contrast minimum
Both cameras are at ISO 6400.
Joe Simon Films gives us another low light test:
Testing the different ISO settings at night with the Panasonic GH4. I show both the raw and s-curve graded versions. This is 4k footage dropped into a 1080p timeline. Download the original version to see more detail.
When I first looked at this lowlight footage in full size (4K) it looks terrible, lots of macro blocking. But putting it into a 1080 timeline makes it a lot better. Not sure of a direct comparison to 5D3, hope to test that soon.
Shot on –
Panasonic 12-35 f/2.8 IS lens (At 2.8)
One more low light test, at 96 fps, in a club, by Lexion Films:
Two more 96 fps test, one by Sam Javanrouh:
And the other by Phllip Bloom:
Then on to aerial testing, with this video from Riot Media:
This clip contains ungraded footage with 1/50, 1/100 and 1/250 shutter speeds.
Aperture was set to auto. This is the reason for the aperture shifting.
And who can resist an anamorphic test? Here’s one by Jurek Ugarow:
Captured in UHD at 23.98, edited and color balanced in FCP X and down converted to 1080p (H264).
All audio via internal microphones.
SLR Magic Anamorphot 1.33 – 50
Panasonic 14-45mm F/3.5-5.6
B+W 0.9 ND Filter
confirms an audio problem with the GH4:
A poster on the facebook gh4 user group posted this problem and I have confirmed it with mine. When monitoring audio with headphones and having an external mic plugged directly into the camera, there is an audible buzz in the headphones. This buzz is NOT recorded onto the sd card. The buzz is somehow tied to the shutter speed, as changing the shutter speed between 1/2 sec and 1/60th of a second alters the frequency of the buzz. The buzz increases in volume with the cameras gain settings.
I use a juiced link box and have the camera gain settings pulled all the way down and that makes the buzz nearly imperceptible, but it’s still there. The good news is that it doesn’t get recorded but This is a huge bummer for folks who want to plug a mic straight into the camera without any sort of preamp.
The consensus seems to be that one should shoot 4K and downsample to 1080p, regardless of the kind of production. What do you think?