GH5 Available for Pre-Order at $2k, amazing features.

Looks very, very nice:

https://www.youtube.com/watch?v=duiWkHOLYoM

Very impressive high ISO performance. Look like it's finally to the point where I'll never genuinely "need" more lowlight for any realistic shooting scenario. GH5 will be a complete workhorse for live event, weddings, or documentary woth with that ISO performance, 5 axis stabilizer, and other features.
 
Anyone measured the HDMI latency yet?

From what I have see so far from bts footage the GH5 seems to have the same issue as the GH4. It would be a shame if Panasonic hasn't addressed this issue.
 
David W. Jones said:
Anyone measured the HDMI latency yet?

From what I have see so far from bts footage the GH5 seems to have the same issue as the GH4. It would be a shame if Panasonic hasn't addressed this issue.
Click to expand...

When I asked Panasonic representatives last year about the lag, I was told it was an HDMI limitation. Don't know if that's true or not.

And I know it doesn't help current monitor owners, but I'd image USB-C, when it because more universal and adopted by small monitor manufacturers, should help alleviate that issue.
 
Cary Knoop said:
Super!

It would be interesting to know how the 709 Like option with adjustable Knee performs in comparison with VLogL.
Click to expand...

709 isn't a gamma designed for lots of DR. It's a standardized look, it's a "typical HD" look. Having adjustability in the knee can extend the point where the highlights clip, but it won't come close to VLOG-L for dynamic range.
 
Barry_Green said:
709 isn't a gamma designed for lots of DR. It's a standardized look, it's a "typical HD" look. Having adjustability in the knee can extend the point where the highlights clip, but it won't come close to VLOG-L for dynamic range.
Click to expand...
It is my understanding that the dynamic range of the GH5 is essentially the same as the GH4.
If highlight roll off is similar as well a "709 Like" setting with a proper knee might even give a better overall picture with minimal loss of highlights.

Anyway the proof of the pudding is in the eating, I would want to see an A-B comparison.
 
Raw sensor output for DR is about the same. Processing is better, which means we'll get closer to seeing the full raw sensor output of DR at its best, in vlog.
 
filmguy123 said:
Raw sensor output for DR is about the same. Processing is better, which means we'll get closer to seeing the full raw sensor output of DR at its best, in vlog.
Click to expand...
My understanding is that (debayered) sensor output is linear which contains relatively few shades of grey. For instance the highest stop of brightness takes half of all sensor data, the stop below a quarter and so on.
A Log curve tries to get as much as possible from those limited shades of grey by expanding those shades (with a result of more noise).
Strict Rec.709 is, in a way, closer to linear but very limited in dynamic range by definition so things blow out quickly. Most manufacturers take the Rec.709 definition loosely and stretch this range in the highlights somewhat to raise the dynamic range or alternatively include the ability to define a knee.

My point being that a Log curve, by itself, does not provide a higher dynamic range, it is typically the (strict) Rec.709 curve that actually limits it.
Am I wrong with my understanding?

Here is an image that shows how a Log curve tries to pack more information into the shades:

log_standardisation_fig_3.jpg


I certainly would be happy if a Log curve on the GH5 gives a better dynamic range than a Rec.709 curve with a proper knee but as I said I first would like to see that demonstrated!

I did some test grading on GH5 footage courtesy of Neumannfilms (neumannfilms.net) for a high dynamic clip:


There are four small sections:

1. The original camera footage using VlogL
2. Applying the Panasonic VlogL to Rec.709 LUT
3. Option 2 plus manual color correction.
4. Option 2 plus manual color correction with the Light Illusion Film Rec.709 LUT.

Unfortunately I do not know of any test using "Rec.709 like" with a proper knee for comparison.
 
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