Author Topic: 7D slow-motion at 60 FPS and 50 FPS over ride. Now working.  (Read 3589 times)

ted ramasola

  • Moderators
  • Hero Member
  • *****
  • Posts: 1250
7D slow-motion at 60 FPS and 50 FPS over ride. Now working.
« on: January 27, 2014, 08:18:39 AM »
Testing the 7D for slo-mo with MLV+SND.
Buffer-1 or 2

Some of the resolutions that go continuous are:
1728 x 516  2.39:1 at 48 fps
1664 x 506  2.35:1 at 50 fps
1408 x 566  16:9 at 50fps
1344 x 540 at 16:9 at 50 fps

Notes:
1. Continuous shooting is possible at this resolution with sound.
Just like the 5DmkII, audio is advanced 2 frames and has extra frames of 7-8. After a nudge audio is perfectly synced with no drifting.

2. To achieve high frame rate, canon menu must be set to 1280x720 60fps.

3. Use FPS over ride in ML menu for 50FPS and lower.  48 or 96 shutter speed depending on amount of blur you want.

4. The 50/60fps video captured is squeezed and framing is not correct.
   ML menu tip will show you have to resize 1.4 to achieve correct 16:9 ratio of, for example, 1344 x 756 in post, the aspect ratio options will show 1344 x 540.
   However, using a chart and some guide lines, resizing to 1.4 is still not enough.
   You have to stretch height further and cropping the top and bottom to achieve proper proportion. Resize should be approx, 1.65. (edit 1.66, thanks to larrycafe)

Maybe a dev can edit the tool tip to reflect these.
Either correct the cropping of the video or change the info/tip to use 1.66 instead of 1.4 stretch.

Conforming the 50/60 FPS video to 23.976 in post gives a smooth slow motion.
5DmkII  / 7D
www.ramasolaproductions.com
Texas

ted ramasola

  • Moderators
  • Hero Member
  • *****
  • Posts: 1250
Re: 7D for slow-motion via 50 FPS over ride test. It works.
« Reply #1 on: January 27, 2014, 08:53:30 AM »
Added images to show the resizing of the 50 fps footage to fit a 16:9 timeline properly.

5DmkII  / 7D
www.ramasolaproductions.com
Texas

OSCA LEE

  • New to the forum
  • *
  • Posts: 31
Re: 7D for slow-motion via 50 FPS over ride test. It works. Needs tweaking.
« Reply #2 on: February 14, 2014, 10:08:03 AM »
CAN YOU POST SOME EXAMPLES...I REALLY NEED TO LOOK INTO THIS I AM ALSO WILLING HELP YOU ON IT

arrinkiiii

  • Hero Member
  • *****
  • Posts: 1101
  • ML ADDICTED 7D
Re: 7D for slow-motion via 50 FPS over ride test. It works. Needs tweaking.
« Reply #3 on: February 14, 2014, 11:21:40 AM »
Hi Ted,

Can i assume that we should use buffer 1 or 2 for slow motion in the 7D? And for 24fps also the best?

gonstock

  • New to the forum
  • *
  • Posts: 2
Re: 7D for slow-motion via 50 FPS over ride test. It works. Needs tweaking.
« Reply #4 on: February 14, 2014, 02:37:18 PM »
Hello, up to now I've been streching Height 1.5x  and It looks good.

Just my experience!
Cheers!


larrycafe

  • Freshman
  • **
  • Posts: 65
Re: 7D for slow-motion via 50 FPS over ride test. It works. Needs tweaking.
« Reply #5 on: February 14, 2014, 03:30:12 PM »
with 7D sensor (I believe it is the same as my 60D)

the whole sensor is 5184 X 3456
in 720P mode, the raw output is reading 1 out of 5 lines, 3456 divided by 5 = 692

and the sensor's 3:2 aspect will be converting to 1728 X 692. if recording at 16:9 is needed, it be calculated by the required sensor height and then divided by 5. it is 5184 / 16 * 9 / 5 = 584.

with 1728 X 584 stretching to 1728 X 972, it is actually 1.66X


ted ramasola

  • Moderators
  • Hero Member
  • *****
  • Posts: 1250
Re: 7D for slow-motion via 50 FPS over ride test. It works. Needs tweaking.
« Reply #6 on: February 14, 2014, 05:12:29 PM »
Hi Ted,

Can i assume that we should use buffer 1 or 2 for slow motion in the 7D? And for 24fps also the best?

in my tests for that build, buffer 2 is best for the 7D.
5DmkII  / 7D
www.ramasolaproductions.com
Texas

ted ramasola

  • Moderators
  • Hero Member
  • *****
  • Posts: 1250
Re: 7D for slow-motion via 50 FPS over ride test. It works. Needs tweaking.
« Reply #7 on: February 14, 2014, 05:16:08 PM »
with 7D sensor (I believe it is the same as my 60D)

the whole sensor is 5184 X 3456
in 720P mode, the raw output is reading 1 out of 5 lines, 3456 divided by 5 = 692

and the sensor's 3:2 aspect will be converting to 1728 X 692. if recording at 16:9 is needed, it be calculated by the required sensor height and then divided by 5. it is 5184 / 16 * 9 / 5 = 584.

with 1728 X 584 stretching to 1728 X 972, it is actually 1.66X

Thanks! I have poor math skills so my 1.65 scale was based by eye. I will test it again using 1.66, but if users can avoid using 50P by "twixtoring" 30P then 50P should be avoided as the quality drop is noticeable.
5DmkII  / 7D
www.ramasolaproductions.com
Texas

arrinkiiii

  • Hero Member
  • *****
  • Posts: 1101
  • ML ADDICTED 7D
Re: 7D for slow-motion via 50 FPS over ride test. It works. Needs tweaking.
« Reply #8 on: February 14, 2014, 05:35:31 PM »
in my tests for that build, buffer 2 is best for the 7D.

Thanks Ted =))

OSCA LEE

  • New to the forum
  • *
  • Posts: 31
Re: 7D for slow-motion via 50 FPS over ride test. It works. Needs tweaking.
« Reply #9 on: February 14, 2014, 06:06:59 PM »
ok used the TL feb13 build...followed all the instructions....

very choppy playback but it is in slow motion....

and tips on how not to get the lag lines out of the footage...


OSCA LEE

  • New to the forum
  • *
  • Posts: 31
Re: 7D for slow-motion via 50 FPS over ride test. It works. Needs tweaking.
« Reply #10 on: February 14, 2014, 06:09:19 PM »
I have a casio ex f1....I used it mainly for slow motion only problem it requires a lot of light to get great quality footage...

if we can crack this it will be awesome

ted ramasola

  • Moderators
  • Hero Member
  • *****
  • Posts: 1250
Re: 7D for slow-motion via 50 FPS over ride test. It works. Needs tweaking.
« Reply #11 on: February 15, 2014, 08:18:30 PM »
ok used the TL feb13 build...followed all the instructions....

very choppy playback but it is in slow motion....

and tips on how not to get the lag lines out of the footage...

what is "lag lines" ? Do you mean the aliasing? or are frames corrupted?
5DmkII  / 7D
www.ramasolaproductions.com
Texas

OSCA LEE

  • New to the forum
  • *
  • Posts: 31
Re: 7D for slow-motion via 50 FPS over ride test. It works. Needs tweaking.
« Reply #12 on: February 16, 2014, 09:49:11 PM »
no frame corruption...I will have to play it back on the pc..I used the MLv player to test it...that may have been the issue


OSCA LEE

  • New to the forum
  • *
  • Posts: 31
Re: 7D for slow-motion via 50 FPS over ride test. It works. Needs tweaking.
« Reply #13 on: February 23, 2014, 07:48:33 AM »
ok...unless we can ramp up the fps to 300+ the footage isn't smooth and it has ghost images as well

arrinkiiii

  • Hero Member
  • *****
  • Posts: 1101
  • ML ADDICTED 7D
Re: 7D for slow-motion via 50 FPS over ride test. It works. Needs tweaking.
« Reply #14 on: February 24, 2014, 05:58:28 PM »

Well,  trying today the last nightly ML for the 7D and didn't yet have the fps override. So making some tests in 2.35:1 and trying  achieve higher frames rate Im using NTSC but changing the fps in canon menu just have 60fps with this the MLV files stay corrupted/pink... So without fps override i change from NTSC to PAL and change the fps in canon menu to 50fps and recorded a clip.

I did the MLV2DNG, open After Effects and the  dng's, AE assume 30fps i just need new interpretation and change to 23,976fps and everything went good. Ok slow motion without corrupted frames or with fps override ML tool.

OSCA LEE

  • New to the forum
  • *
  • Posts: 31
Re: 7D for slow-motion via 50 FPS over ride test. It works. Needs tweaking.
« Reply #15 on: February 27, 2014, 08:47:38 PM »
Well,  trying today the last nightly ML for the 7D and didn't yet have the fps override. So making some tests in 2.35:1 and trying  achieve higher frames rate Im using NTSC but changing the fps in canon menu just have 60fps with this the MLV files stay corrupted/pink... So without fps override i change from NTSC to PAL and change the fps in canon menu to 50fps and recorded a clip.

I did the MLV2DNG, open After Effects and the  dng's, AE assume 30fps i just need new interpretation and change to 23,976fps and everything went good. Ok slow motion without corrupted frames or with fps override ML tool.

what settings did you have your shutter speed at...

arrinkiiii

  • Hero Member
  • *****
  • Posts: 1101
  • ML ADDICTED 7D
Re: 7D for slow-motion via 50 FPS over ride test. It works. Needs tweaking.
« Reply #16 on: February 27, 2014, 09:48:20 PM »

I think was 96

ted ramasola

  • Moderators
  • Hero Member
  • *****
  • Posts: 1250
Re: 7D for slow-motion via 50 FPS over ride test. It works. Needs tweaking.
« Reply #17 on: February 28, 2014, 12:21:36 AM »
High Framerates raw+ sound recording Now Possible with no errors and corrupt frames. Renaming this thread to reflect this development.

60FPS via canon menu (turn OFF FPS Override)
   2.35:1 AR
   1536x466 --1'53"
   1472x448 --continuous recording

   2.20:1 AR
   1472x478 --1'57"
   1408x458 --continuous recording

   2:1 AR
   1408x504 --1'31"
   1344x480 --continuous recording

   16:9 AR
   1344x540 --1'
   1280x514 --continuous recording

50fps FPS Override

   2.35:1 AR
   1664x506 --continuous recording

   2.20:1 AR
   1600x520 --Continuous recording

   2:1 AR
   1536x548 --Continuous recording

   16:9 AR
   1408x566 --continuous recording


Note that the proper scale ratio is 1.66 and not 1.4,

1.4 scale will Fill up the screen BUT the image is still vertically distorted. (see first post regarding this)

So, a 2.35:1 ratio recording can actually fit a 2:1 timeline project. ;)
5DmkII  / 7D
www.ramasolaproductions.com
Texas

arrinkiiii

  • Hero Member
  • *****
  • Posts: 1101
  • ML ADDICTED 7D
Re: 7D slow-motion at 60 FPS and 50 FPS over ride. Now working.
« Reply #18 on: March 01, 2014, 05:13:40 PM »

Hi Ted, This last test that you post is with what date?  and version, TL or ML ?


 

ted ramasola

  • Moderators
  • Hero Member
  • *****
  • Posts: 1250
Re: 7D slow-motion at 60 FPS and 50 FPS over ride. Now working.
« Reply #19 on: March 01, 2014, 05:15:45 PM »
the 60fps used the nightly feb 24-25

the 50fps used TL feb 25-26
5DmkII  / 7D
www.ramasolaproductions.com
Texas

arrinkiiii

  • Hero Member
  • *****
  • Posts: 1101
  • ML ADDICTED 7D
Re: 7D slow-motion at 60 FPS and 50 FPS over ride. Now working.
« Reply #20 on: March 01, 2014, 07:21:46 PM »

-Thanks Ted  :)

arrinkiiii

  • Hero Member
  • *****
  • Posts: 1101
  • ML ADDICTED 7D
Re: 7D slow-motion at 60 FPS and 50 FPS over ride. Now working.
« Reply #21 on: March 01, 2014, 08:28:35 PM »

I try with 60fps from canon menu and have pink frames, a lot... and camera with the orange temperature on 50 degrees. With 50 from canon menu it's ok.


ted ramasola

  • Moderators
  • Hero Member
  • *****
  • Posts: 1250
Re: 7D slow-motion at 60 FPS and 50 FPS over ride. Now working.
« Reply #22 on: March 01, 2014, 08:35:38 PM »
use the feb 24 nightly or TL.

make sure fps override is off and just canon menu is 1280x720-60fps. FPS override 60 is pinkish/magenta colored.

I think even using feb 25 or 26 is ok.
5DmkII  / 7D
www.ramasolaproductions.com
Texas

arrinkiiii

  • Hero Member
  • *****
  • Posts: 1101
  • ML ADDICTED 7D
Re: 7D slow-motion at 60 FPS and 50 FPS over ride. Now working.
« Reply #23 on: March 01, 2014, 08:46:51 PM »

Im using the ML, that don't have fps override. But i will change the buffer method for see what i can get =))


ted ramasola

  • Moderators
  • Hero Member
  • *****
  • Posts: 1250
Re: 7D slow-motion at 60 FPS and 50 FPS over ride. Now working.
« Reply #24 on: March 01, 2014, 08:50:30 PM »
Buffer -1 is what I used for all tests and when shooting on 7D.
5DmkII  / 7D
www.ramasolaproductions.com
Texas