30p from GH2? at DVinfo.net

Jim Snow · December 27th, 2010, 01:20 PM

The GH2 only has 60i or 24p video output. Has anyone heard about either an upgrade or firmware hack that will allow 30p output?

Eric Lagerlof · December 27th, 2010, 04:12 PM

Or 60p which the sensor does record, that would be nice. Also iso limit in movie mode.

Brian Luce · December 27th, 2010, 09:19 PM

ISO limit in video mode is 3200. It does a pretty good job of it too.
I believe it does 30p in MJPEG.

Mike McKay · December 27th, 2010, 09:26 PM

If you shoot in 1080 24p mode at the 80% speed settings.....supposedly that is 30p...but with no sound.

Jim Snow · December 27th, 2010, 11:24 PM

Thanks Mike. I will have to try that when I get my GH2. No audio is a bit of a downer but not much since I usually record alternate audio anyway.

Jim Snow · December 27th, 2010, 11:58 PM

Is 24p actually 23.976? The reason I ask is that if it is, 80% of 29.97 is 23.976. If it is, then it will be at the same frame rate as 29.97 video. If not, the frame rate won't exactly match so it will take a couple of extra steps to deal with that when editing. It's a bit like the old 5D Mk. II problem of recording at 30p instead of 29.97.

Paulo Teixeira · December 28th, 2010, 02:08 AM

It has an MJPEG mode that records to 720 30p.

Eric Lagerlof · December 28th, 2010, 01:51 PM

"ISO limit in video mode is 3200. It does a pretty good job of it too."

I was thinking more like limiting it to iso 800. From what I can see there is no way to set alimit in video mode.

Paulo Teixeira · December 29th, 2010, 05:59 AM

Why not shoot in manual? This way you can lock the ISO. That's what I do in a lot of my low light shooting.

Eric Lagerlof · December 30th, 2010, 12:07 AM

Paulo, I am shooting the gh2 as a wide-angle lock off in 'set-it-and-forget-it' mode. Shooting a theatrical production, with widely varying lighting and with the stock 14-42 mm lens.

Actually, manual mode doesn't quite work... In the end, I set it to Shutter priority, shutter at 60, manual iso at 800 and let the 'exposure compensation' give me everything it's got. There is one dark scene I need to quickly reset to iso 1600 and even then it's dark,; I have the two camera settings as Custom 1 & 2 so I don't have to fumble with the menu in the dark.

The gh2 is giving me a very contrasty picture and trying to CC it in Premiere Pro I hit noise real fast. My shoot is attacking this camera/lens combo at so many of its weaknesses, low light, noise floor, contrasty dynamics, no 'Spot' function per se, shooting at 60i to match my FX-1 instead of 24p, etc. etc. After this shoot I look forward to working with more even lighting in the iso 400 range on some nice corporate interview gig :-)

December 27th, 2010, 01:20 PM	#1
Jim Snow Trustee Join Date: Mar 2009 Location: Santa Clara, CA Posts: 1,104	30p from GH2? The GH2 only has 60i or 24p video output. Has anyone heard about either an upgrade or firmware hack that will allow 30p output?

December 28th, 2010, 02:08 AM	#7
Paulo Teixeira Trustee Join Date: Dec 2005 Location: Massachusetts Posts: 1,773	It has an MJPEG mode that records to 720 30p. __________________ https://www.youtube.com/user/PhotoVi...esEtc/featured https://www.pond5.com/artist/paulot

December 29th, 2010, 05:59 AM	#9
Paulo Teixeira Trustee Join Date: Dec 2005 Location: Massachusetts Posts: 1,773	Why not shoot in manual? This way you can lock the ISO. That's what I do in a lot of my low light shooting. __________________ https://www.youtube.com/user/PhotoVi...esEtc/featured https://www.pond5.com/artist/paulot

December 27th, 2010, 04:12 PM	#2
Eric Lagerlof Major Player Join Date: Mar 2004 Location: Pacifica, CA Posts: 348	Or 60p which the sensor does record, that would be nice. Also iso limit in movie mode.

December 27th, 2010, 09:19 PM	#3
Brian Luce Inner Circle Join Date: Jan 2006 Posts: 2,290	ISO limit in video mode is 3200. It does a pretty good job of it too. I believe it does 30p in MJPEG.

December 27th, 2010, 09:26 PM	#4
Mike McKay Regular Crew Join Date: Jan 2006 Location: Vancouver Posts: 125	If you shoot in 1080 24p mode at the 80% speed settings.....supposedly that is 30p...but with no sound.

December 27th, 2010, 11:24 PM	#5
Jim Snow Trustee Join Date: Mar 2009 Location: Santa Clara, CA Posts: 1,104	Thanks Mike. I will have to try that when I get my GH2. No audio is a bit of a downer but not much since I usually record alternate audio anyway.

December 27th, 2010, 11:58 PM	#6
Jim Snow Trustee Join Date: Mar 2009 Location: Santa Clara, CA Posts: 1,104	Is 24p actually 23.976? The reason I ask is that if it is, 80% of 29.97 is 23.976. If it is, then it will be at the same frame rate as 29.97 video. If not, the frame rate won't exactly match so it will take a couple of extra steps to deal with that when editing. It's a bit like the old 5D Mk. II problem of recording at 30p instead of 29.97.

December 28th, 2010, 01:51 PM	#8
Eric Lagerlof Major Player Join Date: Mar 2004 Location: Pacifica, CA Posts: 348	"ISO limit in video mode is 3200. It does a pretty good job of it too." I was thinking more like limiting it to iso 800. From what I can see there is no way to set alimit in video mode.

December 30th, 2010, 12:07 AM	#10
Eric Lagerlof Major Player Join Date: Mar 2004 Location: Pacifica, CA Posts: 348	Paulo, I am shooting the gh2 as a wide-angle lock off in 'set-it-and-forget-it' mode. Shooting a theatrical production, with widely varying lighting and with the stock 14-42 mm lens. Actually, manual mode doesn't quite work... In the end, I set it to Shutter priority, shutter at 60, manual iso at 800 and let the 'exposure compensation' give me everything it's got. There is one dark scene I need to quickly reset to iso 1600 and even then it's dark,; I have the two camera settings as Custom 1 & 2 so I don't have to fumble with the menu in the dark. The gh2 is giving me a very contrasty picture and trying to CC it in Premiere Pro I hit noise real fast. My shoot is attacking this camera/lens combo at so many of its weaknesses, low light, noise floor, contrasty dynamics, no 'Spot' function per se, shooting at 60i to match my FX-1 instead of 24p, etc. etc. After this shoot I look forward to working with more even lighting in the iso 400 range on some nice corporate interview gig :-)