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Old Feb 21, 2011, 11:55 AM
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Panasonic GH2 on Hexakopter

Quick test with the GH2. Pretty excited over this little gem.
Panasonic GH2 1080P test flight on a Hexakopter (2 min 2 sec)


Cheers,
Jeff
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Old Feb 21, 2011, 12:08 PM
Frogman
Stoughton, WI
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Quote:
Originally Posted by jeffscholl View Post
Quick test with the GH2. Pretty excited over this little gem.
http://vimeo.com/20181365

Cheers,
Jeff
Yea, the GH2 is a quite the camera in a small package. DSLR features and sensor in a point and click size. Could be a game changer for our little ventures. I'm a videographer and the DSLR movement is pretty crazy. These little GH2 cams are pretty popular and would do some damage to Canon's momentum if they had some decent fast glass available for it. You have very few options for good fast glass for low light environments. That is not an issue for what we do but for videographers it is huge. I'm still a Canon DSLR shooter for video but the GH2 has lots of potential...especially strapped to a plane/copter.
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Old Feb 21, 2011, 12:18 PM
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Just spent last week in the AZ desert shooting with multiple 5dmk2's and 7d's. Used a 14L, 24TS, 100 macro, and a 35L for most of the specialty camera content.

I've had my 5dmk2 since Dec 08. I think we are due for the mk3 with hopefully faster refresh rate and maybe a raw codec :-)
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Old Feb 21, 2011, 12:58 PM
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Originally Posted by jeffscholl View Post
Quick test with the GH2. Pretty excited over this little gem.
http://vimeo.com/20181365

Cheers,
Jeff
Hi Jeff,
I love your work, thanks for posting.
Was that video shot at 60fps, if not how well does the 1080 60fps setting handle vibrations?
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Old Feb 21, 2011, 01:42 PM
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"Was that video shot at 60fps"

The GH2 doesn't have the 1080 60fps/overcrank that the AF100 does.
I do plan on testing out the 720 60P against the Canon DSLRS in regards to flicker/moire.

Best,
Jeff
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Old Feb 21, 2011, 02:14 PM
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Hi Jeff,
In the specs it says it does?
http://www.dpreview.com/previews/panasonicdmcgh2/
I use my Go Pro's on R3 which is 720p 60FPS.
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Old Feb 21, 2011, 06:08 PM
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The specs on the Panasonic site for the GH2 (link):

AVCHD NTSC
[Full HD] 1,920 x 1,080, 24p (24H: 24Mbps, 24L: 17Mbps)
[Full HD] 1,920 x 1,080, 60i (sensor output is 60p) (FSH: 17 Mbps, FH: 13 Mbps)
[HD] 1,280 x 720, 60p (sensor output is 60p) (SH: 17 Mbps, H: 13 Mbps)
Why does it say "sensor output is 60p" after 60i?
Does that mean it records as interlaced and then converts to progressive?
I learned from Jeff that progressive is better than interlaced for post-processing stabilization.

@Jeff - so did you record it at the 24p or 60i setting?

Sorry for my ignorance on all this, trying to figure it out.

Thanks, Shawn
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Old Feb 21, 2011, 08:53 PM
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Left you a facebook comment, great work as always Jeff. So which is better, the GH2 or 550 T2i? I did a quick search on prices of the GH2 and some were like $1300, others $800? T2i's are around $800 I believe with the 18-55mm lens.
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Old Feb 21, 2011, 09:43 PM
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The T2i produces a moire/flicker with it's line skipping that I can't produce with the GH2.
I'm going to get the Lumix 14mm prime and compare to the T2i with the 20mm.
Also on the GH2 I haven't been able to push the ISO past 3200 for video - stills you can go up to 12800.

"@Jeff - so did you record it at the 24p or 60i setting?"

24P

1080 60i is exactly that for the file, but perhaps in the future they can give us a firmware upgrade to extract the 60P stream out of the HDMI out.
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Old Feb 21, 2011, 09:56 PM
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The T2i produces a moire/flicker with it's line skipping that I can't produce with the GH2.
I'm going to get the Lumix 14mm prime and compare to the T2i with the 20mm.
Also on the GH2 I haven't been able to push the ISO past 3200 for video - stills you can go up to 12800.

"@Jeff - so did you record it at the 24p or 60i setting?"

24P

1080 60i is exactly that for the file, but perhaps in the future they can give us a firmware upgrade to extract the 60P stream out of the HDMI out.
Hi Jeff,
Thanks for sharing all your great work and knowlegde, I have great respect for what you do and learn alot from it.
Cheers
Gary
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Old Feb 21, 2011, 10:30 PM
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Well said! I agree totally. Just learned a little more. Thanks, Shawn

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Hi Jeff,
Thanks for sharing all your great work and knowlegde, I have great respect for what you do and learn alot from it.
Cheers
Gary
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Old Feb 21, 2011, 11:38 PM
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Hi Jeff,
Thanks for sharing all your great work and knowlegde, I have great respect for what you do and learn alot from it.
Cheers
Gary
Couldn't have said it better myself. There are about 4-5 guys (that I've seen on all the forums) that have this aerial video stuff nailed down. Jeff is one of them.
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Old Feb 21, 2011, 11:41 PM
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"I set the GH2 to 1080 24fps at 80% and then conformed it to 30fps for real time - 24Mbs :-) "

Above from facebook..

So when you say "real time" your referencing the 30fps? And this is how you were able to get 30fps at 24Mbs?

Wow.. If you got that from that hideous manual I'm stunned.. Nice tweak..

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Old Feb 21, 2011, 11:53 PM
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Originally Posted by cannondale1974 View Post
Left you a facebook comment, great work as always Jeff. So which is better, the GH2 or 550 T2i? I did a quick search on prices of the GH2 and some were like $1300, others $800? T2i's are around $800 I believe with the 18-55mm lens.
A couple of things you may want to keep in mind.

Since the T3i is just now being released you can expect the price of the T2i to come down significantly, I think its already down to $650 or less (camera body).

However as Jeff mentioned the Canon's 7D and T2i [and probably the T3i] have moire issues. If you know under what conditions and which lenses cause it to happen you can work around it. Of coarse your adding one more layer of complexity to your Aerial Photography that will lower your probability of a successful shoot. But only you can decide whether its worth the difference in price. I do quite a bit of aerial photography from real helicopters, ultralights and airplanes with the 5dMkII and 7D the problem with moire hasn't ruined a shoot but you have to be mindful of it whereas with the GH2 [or better yet] the AF100 it doesn't seem to be an issue.

Also, the GH2 weights 382g (+ lens) and the T2i weights 530g(+ lens) and the AG-AF100, for anyone brave enough to fly a $5K camera is about 1.3Kg.

There are a lot of variables but for me if the price of the T2i goes low enough I'll hang it under a hexa or maybe even a quad. The GH2 is a very nice camera, but so is the T2i.
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Old Feb 22, 2011, 07:31 AM
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I just realized "real time" is the playback speed.. So how did it look at 80%.. Nice to have the option when shooting 1080p.
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