Author Topic: Is a stable RAW 1280 x 720 at 30fps possible on the 5d III  (Read 5235 times)

Tony5diii

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I am looking to pull the trigger on a 5d III if it truly can produce a stable RAW 1280 x 720 at 30fps with no dropped frames

If it is possible with the current Magic Lantern build can anybody tell me how many mins that would record on a 64gb 1000x card

Thanks for any advice

RenatoPhoto

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Re: Is a stable RAW 1280 x 720 at 30fps possible on the 5d III
« Reply #1 on: June 06, 2013, 09:43:37 PM »
No sweat!  At 1280x720 29.97 fps you will require a card speed of 46 MB/s something like 22 minutes in 64gb
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a1ex

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Re: Is a stable RAW 1280 x 720 at 30fps possible on the 5d III
« Reply #2 on: June 07, 2013, 01:26:17 AM »
I think it can reach 1728x972 or maybe 1856x1044 in theory (needs to be confirmed though).

https://docs.google.com/spreadsheet/ccc?key=0AgQ2MOkAZTFHdFFIcFp1d0R5TzVPTVJXOEVyUndteGc#gid=5

platu

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Re: Is a stable RAW 1280 x 720 at 30fps possible on the 5d III
« Reply #3 on: June 07, 2013, 01:35:24 AM »
I get 1728x972 continuous.  1856x1056 get dropped frames after 400 frames.

Kraemer

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Re: Is a stable RAW 1280 x 720 at 30fps possible on the 5d III
« Reply #4 on: June 07, 2013, 02:00:03 AM »
Yes, I agree no sweat even for slower cf cards-- looks awesome!  Thanks ML TEAM!  I'm stoked! 
I found that the SanDisk ExtremePro 90mbs card will even do full 1920x1080 without a skip!

RenatoPhoto

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Re: Is a stable RAW 1280 x 720 at 30fps possible on the 5d III
« Reply #5 on: June 07, 2013, 03:12:49 AM »
Just for the record.. 1856x1004 at 30 fps recorded 23.5 GB before it skipped one frame. 

Setup:
Lexar Professional 1000X 32 GB
Framing Force Left
Preview: Hacked
Memory hack: ON (six buffers)
http://www.pululahuahostal.com  |  EF 300 f/4, EF 100-400 L, EF 180 L, EF-S 10-22, Samyang 14mm, Sigma 28mm EX DG, Sigma 8mm 1:3.5 EX DG, EF 50mm 1:1.8 II, EF 1.4X II, Kenko C-AF 2X

platu

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Re: Is a stable RAW 1280 x 720 at 30fps possible on the 5d III
« Reply #6 on: June 07, 2013, 08:24:37 AM »
Not crazy about frozen live view Hacked Preview (not practical for me).  But the new memory hack option is a nice help imo.  See https://bitbucket.org/hudson/magic-lantern/commits/6397e112ed41d36795b18c8825ab50a258811f2e#general-comments

By expanding the buffer memory available, I was able to do full 1920x1080, 30p for about 12 seconds. Doesn't sound like much, but for many situations, 12 second takes are sufficient.  Without the new hack, I get only about 5 seconds.  A couple more memory finds like this and full hd at 30p might be possible for much longer takes.  I love 30p for creating subtle slow motion for music videos.  The hack also will make huge difference for any other borderline resolutions.

Tony5diii

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Re: Is a stable RAW 1280 x 720 at 30fps possible on the 5d III
« Reply #7 on: June 07, 2013, 08:51:58 AM »
Thanks you all for the info   looks like I will be joining the party !

Does it stretch the image at this resolution or is it a true 1280 x 720

Thanks ML team we all really appreciate what you have done !!!

platu

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Re: Is a stable RAW 1280 x 720 at 30fps possible on the 5d III
« Reply #8 on: June 07, 2013, 09:17:40 AM »
Thanks you all for the info   looks like I will be joining the party !

Does it stretch the image at this resolution or is it a true 1280 x 720

Thanks ML team we all really appreciate what you have done !!!

No stretch required.  Stretching the image is only required when in Canon  50/60p mode (1x).

Tony5diii

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Re: Is a stable RAW 1280 x 720 at 30fps possible on the 5d III
« Reply #9 on: June 08, 2013, 09:35:03 AM »
thanks for the info platu