GH2 official discussion thread

Vitaliy Kiselev said:
x4 is digital zoom.
People try to tell you how to turn on teleconverter, not digital zoom.
And it'll be fine with FD lenses, just stop them down.
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sorry it was late at night, got mixed up. thanks for the help. works great.

* sometimes i amaze myself on how dumb i can be.
 
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I've been using the EX Telecon option a lot and actually like it. Yes the image isn't quite as sharp as the one from the full sensor scan and there is more noise present in the image but as a quick makeshift zoom it's great. But the extra noise and softness in the image make it a bit less desirable than the regular mode if it can be helped (now maybe get a razor sharp lens on that puppy and use an HDMI out recorder and you might be looking at something with a lot of potential). And don't confuse it with the digital zoom, which has terrible quality.

I also have to agree about an earlier post, Nostalgic does seem the best to work with as far as noise and cleanness are concerned (open up a video file in Photoshop and look at the red and blue channels in Nostalgic vs other settings, it's pretty telling). The problem of course is that Nostalgic gives you that yellowish tone, nothing is ever white. Has anyone had any luck correcting for that by adjusting the color axes? Personally I kind of like the new cinema mode, it has punchier color than smooth and seems to have a similar dynamic range, and it just looks nice on the videos I've used it on. It's become my default film mode.
 
richtrav said:
I've been using the EX Telecon option a lot and actually like it. Yes the image isn't quite as sharp as the one from the full sensor scan and there is more noise present in the image but as a quick makeshift zoom it's great. But the extra noise and softness in the image make it a bit less desirable than the regular mode if it can be helped (now maybe get a razor sharp lens on that puppy and use an HDMI out recorder and you might be looking at something with a lot of potential). And don't confuse it with the digital zoom, which has terrible quality.

I also have to agree about an earlier post, Nostalgic does seem the best to work with as far as noise and cleanness are concerned (open up a video file in Photoshop and look at the red and blue channels in Nostalgic vs other settings, it's pretty telling). The problem of course is that Nostalgic gives you that yellowish tone, nothing is ever white. Has anyone had any luck correcting for that by adjusting the color axes? Personally I kind of like the new cinema mode, it has punchier color than smooth and seems to have a similar dynamic range, and it just looks nice on the videos I've used it on. It's become my default film mode.
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richard have you tried tweaking the standard mode? tell me how it is
 
Have Panasonic implemented hdcp to prevent you recording the hdmi signal from the GH2?

Can the hdmi signal be split from the gh2 to go to a ninja and a monitor?

Many thanks
 
Adventsam said:
Have Panasonic implemented hdcp to prevent you recording the hdmi signal from the GH2?

Can the hdmi signal be split from the gh2 to go to a ninja and a monitor?

Many thanks
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someone here said (Vitaliy i think) it's not supposed to be blocked...
hope to capture footage today
 
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Vitaliy, I read Panny just released a firmware update for the G2 (vers 1.11). Any value in taking a look at the update to see Panny's firmware blocking? Would they implement a different form of protection on different bodies?
 
At the risk of sounding stupid - maybe everyone but me knows the answers - but just out of curiosity, some questions:

1.) The release date in Germany - where i am currently - is announced to be "End of November" Are those announcments half-way reliable? I mean, having pre-ordered it already some weeks ago at a well-known german webstore, how high you estimate my chances to be able to shot with it on, lets say, 10th december? I know this is not a fortune-teller forum, but maybe someone has followed pannys announcment reliability in the past and dares to make a prediction ;)

2.) Some people seem to be hoping already now for a GH2 hack that could add, e.g. 25p with 24MBs (amongst other things)
Since Panasonics latest firmware-related "decision" on the GH1 was to block hacks, why should the "revise" that decision concerning its successor? Vitaly seems confident about that, is there a reason why?

3.) Does AV-out stop when recording? If not, any chance it could be used for headphones?


greatful for answers,
tob
 
Hello,

I too am waiting for delivery of my GH2 (in the US). One thing that I am confused about but I know the experts here can answer very easily. The GH2 page at Panasonic says the GH2, 1080 is this:

[Full HD] 1,920 x 1,080, 60i (sensor output is 60p)

Does this mean that when you shoot at 1080 you are shooting 60p and there is no pulldown required to edit in Final Cut Pro? (When I had my GH1 I always shot 720/60p which for my web needs, was perfect. There was no pulldown, converted into pro res and edited in FCP. Is the same now possible with the 1080 from the GH2?

Or is the 1080 interlaced?

Sorry, I don't get it.

Thanks!

Larry
 
larrys said:
Hello,

I too am waiting for delivery of my GH2 (in the US). One thing that I am confused about but I know the experts here can answer very easily. The GH2 page at Panasonic says the GH2, 1080 is this:

[Full HD] 1,920 x 1,080, 60i (sensor output is 60p)

Does this mean that when you shoot at 1080 you are shooting 60p and there is no pulldown required to edit in Final Cut Pro? (When I had my GH1 I always shot 720/60p which for my web needs, was perfect. There was no pulldown, converted into pro res and edited in FCP. Is the same now possible with the 1080 from the GH2?

Or is the 1080 interlaced?

Sorry, I don't get it.

Thanks!

Larry
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It is 1080i/60 or in other words it needs to be deinterlaced before it can be displayed progressively.
 
larrys said:
Thanks! Then what does the "sensor output is 60p" mean?

What is this 60p referring to?
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From what I understand, the sensor outputs 60p (awesome!) but shoots into a 60i stream (meh. kinda lame). To me, what this means is that you should be able to overcrank it in the camera and shoot badass slow-mo in-camera.

Seems to me, anyway. I gotta have one.
 
larrys said:
Thanks! Then what does the "sensor output is 60p" mean?

What is this 60p referring to?
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It means that although the camera scans the image sensor progressively at 60fps, it discards every other scanline to produce one interlaced 1920x540 frame 60 times each second. For all practical purposes, it records at 1920x1080 @ 60i, just like every other interlaced camcorder.
 
So basically, what you are saying, is that if you shoot in 1080 on the GH2, you need to do some sort of pulldown to edit in FCP and then upload to vimeo? So for web web only purposes, will it still be most efficient to shoot in 720/60p?

Thanks!
 
lpowell said:
It means that although the camera scans the image sensor progressively at 60fps, it discards every other scanline to produce one interlaced 1920x540 frame 60 times each second. For all practical purposes, it records at 1920x1080 @ 60i, just like every other interlaced camcorder.
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And when the GH2 is in 24p Cinema Mode ("24H") it records 1080p24 native mode (progressive) at 24Mbps. No pulldown is recorded, so none needs to be removed in post.

See:
http://panasonic.net/avc/lumix/systemcamera/gms/gh2/movie.html#avchdformat
 
Peter, I am really happy you brought that up. OK, almost every video I have seen shot in 1080p24 has, to some extent, that strobiness - sometimes more, sometimes less. But, to my eye, it is always there and I find it very distracting. And, I don't know if on the GH2 it is avoidable. I know this also has to do with shutter speed. Any ideas about this?
 
larrys said:
Peter, I am really happy you brought that up. OK, almost every video I have seen shot in 1080p24 has, to some extent, that strobiness - sometimes more, sometimes less. But, to my eye, it is always there and I find it very distracting. And, I don't know if on the GH2 it is avoidable. I know this also has to do with shutter speed. Any ideas about this?
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damn, that's what drives me crazy too (shooting on the GH2). the fact is you have to use 1/50 always.
but still, it's a lot more distracting to me than on real film. i hope it get's subtle after you finish post or something..
if someone has more tips i'll be happy.
 
Hi guys. A friend of mine brought me a GH2 from Japan this week and I have some free time, so if anyone wants me to perform a test or upload some footage, just let me know.
 
larrys said:
... almost every video I have seen shot in 1080p24 has, to some extent, that strobiness - sometimes more, sometimes less. But, to my eye, it is always there and I find it very distracting. And, I don't know if on the GH2 it is avoidable. I know this also has to do with shutter speed. Any ideas about this?
Click to expand...

24p is 24p. Most people love properly-shot 24p, but some people dislike even the best 24p footage. Nothing new, and nothing specific to the GH1 or GH2.

Note that >90% of every Hollywood feature film is shot at 24 fps with a 180-degree (1/48-sec) shutter. There is no significant difference between how that looks, in terms of motion rendering, and properly-shot footage __of the same scene__ recorded with a GH13 or GH2 in 1080p24 progressive mode with a 180-degree (1/50th-sec.) shutter. (Sometimes using a 1/60th shutter may be desirable under certain lighting.) In terms of how motion is rendered, they look the same. Again, most people will love it, but some will not. It's all good.

If you prefer a different frame rate, use a different GH1/GH2 recording mode & appropriate shutter speed, or if necessary use a different camera. Again, nothing new here. It's all good.

See also:
http://www.hd24.com/page4/page15/page28/page28.html

Further note: The following clip was shot with my GH1 (using the firmware mod "C" settings) in 1080p24 progressive with a 1/50th shutter. Vimeo members can download the camera-original clip, too. To my eye, on my computer, it plays without apparent "strobiness" in the current version of VLC & FCP:


P.S.: As noted on the Vimeo page, the camera-original .MTS file was converted to a .M4V using ClipWrap & Rewrap2M4V, but this has no effect on the motion rendering or quality of the file.
 
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