GH2 Stalin samples topic

nic2011

Can anyone do a comparison shot between 720p50/60 unhacked<=>hacked, please.

mistan

@Shield I can definitely see a difference in resolution between the two. Especially on the microphone, the wording on the lens, and the thread. If you want to notice an immediate difference, look at the soundcard in the back.

EDIT: Whoops, nvm...I was looking at the 2Mpix Photo still. I wish detail resolved like that on the GH2 ;)

Shield

@ dreamer - I can't tell a difference other than the WB shift between 24p/32 and 24p/22

feha

@EOSHD
"Try testing the AVCHD Top / Low Bottom experimental patches?"

what would be suggested values ?
(i did not change these, except avhcd compression 1080i/50 to 32Mbps for end users)

"When there's less detail the camera takes liberties and drops the bitrate ..."
i think the reason is to reduce final file size ...

dreamer

Here a few screen shots made with a 55W energy saving day light lamp. 14-42mm Kit-lens, 1/30sec, ISO400, AWB, AF. (sorry a 95% JPG again. But doesn't make a visual difference). Didn't touch GOP, just raised the bit rate.

2Mpix Still:

24p - 22Mbps

24p - 32Mbps

50i - 16Mbps

50i - 32Mbps

(click on "Vergrössern" for a 100% view)

The AWB of the GH2 had some problems. In my opinion the 50i footage is a bit improved. 24p (if at all) slightly.

DrDave

@plasmasmp That really is a very revealing video. The differences are small enough that I could for example ascribe the variation to lens samples. I would be hard pressed to tell them apart except for the slightly stronger color in the GH2. I'm interested how you matched the camera settings so closely as I would like to use the GH1 and GH2 in tandem. TIA.

dkitsov

also buy a a camera that does 10 bit or better

feha

@alcomposer

Hi, thank you.
Yes I think this could be improved by setting right exposure , ISO etc ..
I just wanted to test at it's extreme ... :-)
Used 20mm 1.7 at 1.7 aperture exposure A and automated iso and shutter ...
just to get the extreme changes in footage in order to check gradients ...

feha

Here is one more sample ...
Showing gradients, i think 4.2.2 would solve this problem
Look at sky ...
Download mts file at vimeo

DrDave

Cool, thanks. Nice job matching. Interesting that the dashed lines seem a bit sharper at the top of the hill on the GH1. What settings did you use for GH1?

plasmasmp

Greek_m43

Password is cbs13

These were our 10 o'clock news topicals. The first 2 are shot with GH2 42mbps and the other 2 are shot with an EX1. The GH2 looks fantastic for broadcast. Password is cbs13.

OSGondar

For encoder motion testing i have made High motion images, high iso, some dead on exposures some under exposures all during some motion. I basically tested just about most of the shots i can imagine an average user would have. Sorry for the extra texts in it, i may put it on my blog and talk about progress with the hack so some extra info is in there. If you don't full screen, it looks a lot like the mts, full screen there is what seems to be more noise than the original file but original is available to download so that fixes that..

feha

@Ptchaw
hi here comes some, unedited
http://Sendoid.com/wty0l
http://sendoid.com/u8xer

Vitaliy_Kiselev

If anyone wants to share uncompressed video - you can use http://www.sendoid.com/ to instantly share very large files (download their Adobe Air client that work on any platform).
Of course you need good connection as it uses p2p tech.

Ptchaw

@feha Unless you're going to link to a video where the raw file can be downloaded (like Vimeo) don't bother. Youtube has very high compression and low bitrate. Much better to post (uncompressed) screeenshots instead if you want to show examples.

feha

Here some video tests:

1080i/50
32 - 36 Mbit
Sorry for shaking etc, but this shows stability in different shooting conditions

mpgxsvcd

Here are my sample pictures.

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