Is a stable RAW 1280 x 720 at 30fps possible on the 5d III

Started by Tony5diii, June 06, 2013, 09:14:32 PM

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Tony5diii

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

No sweat!  At 1280x720 29.97 fps you will require a card speed of 46 MB/s something like 22 minutes in 64gb
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

a1ex


platu

I get 1728x972 continuous.  1856x1056 get dropped frames after 400 frames.

Kraemer

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

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

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

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

Quote from: Tony5diii 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 !!!

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

Tony5diii