108mb/s video on the GF13 http://vimeo.com/12854862
99.2mb/s video on the GF13 (2min 16s) http://www.youtube.com/watch?v=lk2nj5vBPac
99.2mb/s video on the GF13 (2min 16s) http://www.youtube.com/watch?v=lk2nj5vBPac
GF1 100mb/s footage acheived!!!
- Thread starter mike797
- Start date
Class 4 sandisk 16gb ultra ll
Settings are as follows. ptools 3.7d
E1 Q 545, 500, 455, 410
E1 T 24, 24, 24, 24
MJPEG 1280m height checked (720)
MJPEG 1280m width checked (1280)
420->422 checked
sammysammy
Well-known member
wow mike your getting over 100mb with out the camera stop recording?how long can u record at that rate? i have what seems to be the best card the extreme class 10 16bg, and as soon as i reach 80's with 422 checked and the gh1 stops recording because of card speed..sometimes if i pan fast with 422 at about 75mb the camera stops..i have had over 100mb recorded but with our 422 and only for about 5 sec before it stops..all this at 720p..
Brian@202020
Veteran
Mike has a GF1. Altho the GF1 is less expensive than the GH1, it could potentially have better hardware because it's newer. So the bottleneck might not be the camera like it is with the GH1.
Using QuickTime and the data rate says 108mb/s
Can record for as long as it allows me to record so 3mins 46sec.
I have noticed when i first turn the camera on and hit record it tries to record complex scenes at 116-118mb/s but cuts out after 2-3secs. I then hit record again and it seems to switch to a lower mb/s of around 102-108mb/s and remains stable until I turn the camera off then it does the above again.
If one plays with these settings below (which i have not ticked in my settings) could that prevent it from attempting to record over 108mb/s?
VBitrateAd. H:
VBitrateAd. L:
overall Bitrate:
Limiting Bitrate:
How long do you think it will take for it to be released? Would 24p cause the mb/s to go up or down?
mike, these settings are for avchd i believe and dont have any effect on mjpeg.
check the gf1 testing thread for info on table settings.
this is really interesting, and certainly needs more testing.
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so i took your lowest setting, q410, t 24 and set
all quality set to 410
all table set to 24
this appears stable on a class 10, giving me clips from 57.20 to 97.80, average about 90mbits/sec!
i need to wait till daylight to test thoroughly. i shall test this one thorougly, as a 100 percent stable codec is what i'm after,
not one that fails to write at that critical moment:badputer:
if anyone has a panny pancake 20mm lens, pleae test this setting, as this lens has a better resolution than mine so i think would force the codec with more detail. Cheers, Huw
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alignment1
Well-known member
wait, I'm confused...QT can't read MTS files so are these your transcoded Prores files that your getting your readings from?? If so than the data rate is false- am I wrong about this??
Brian@202020
Veteran
MJPEG files are .MOV, the AVCHD files are .MTS. He is achieving that data rate in MJPEG mode and reading it in Quicktime. That's how I've been reading my MJPEG files as well. I use either Toast Video Player or VLC to view the data rates of the AVCHD files.
yes quicktime on os x shows you this data for .mov, and it is an accurate straight from camera bitrate.
the 410 24 setting where all q is set to 410 and all t is set to 24, with 4:2:2 selected isn't 100 percent stable, but boy is it nice! in daylight 100mbits on nearly everything!!!
the weird thing is that sometimes it trips the write speed error with a lower bitrate (100.40mbits) and then writes fine for slightly higher bitrates (100.68mbits) immediately afterwards.
the 410 24 setting where all q is set to 410 and all t is set to 24, with 4:2:2 selected isn't 100 percent stable, but boy is it nice! in daylight 100mbits on nearly everything!!!
the weird thing is that sometimes it trips the write speed error with a lower bitrate (100.40mbits) and then writes fine for slightly higher bitrates (100.68mbits) immediately afterwards.
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PappasArts
Veteran
Run those settings with 4:2:2 unchecked ( regular Mjpeg at hibit rates already has good color ) and then shoot the star chart, see what happens- If it doesn't cause the write error, then these settings are very good. 100% error free is the goal, and when we get the numbers right- that will be awesome. The more people trying- do experiments, the faster we will find the stable formula. However we need to be filming the same testing parameters- that's why the star chart keeps the testing at a standard.
Pappas