Messages

@Bilal: thanks for checking!  Hope this could indeed be fixed at some point- I'm not sure what the process is for bug reports and so on.

On the other hand, I'm already getting quite good results by just using shutter fine-tuning (in the Image fine-tuning menu), and ensuring that the shutter speed is the same as the frame rate (59.946).  There's still a moving bar artifact but it's much less noticeable this way! 
It won't be 100% perfect without being able to set 59.923 (for both FPS and shutter speed), but ML is already giving me much better results than just the stock firmware.

[A]

Please lookup if your 700D build has the option -> Movie tab -> FPS override.
If not you may have to use a build made by TheBilalFakhouri. https://www.magiclantern.fm/forum/index.php?topic=25784.0

Mandatory: Setting "Optimize for Exact FPS".
You may have to open "Advanced ..." which may be overwhelming at the beginning ... whom am I kidding? This menu frightens me, TBH.
Basic help: https://wiki.magiclantern.fm/camera_help#fps_override

But it can be done, see https://www.magiclantern.fm/forum/index.php?topic=25851.msg234276#msg234276

Thanks for the pointers! The 700D build does have FPS override enabled, and I had a go at the Advanced menu.  I select:

• Desired FPS: 60
• Optimize for: Exact FPS

But in fine-tuning the timers, I have a problem.
Actually, two problems:

• FPS timer A can only be adjusted in increments of 2 (I can set "FP+2", "FP+4" etc. but not "FP+1", "FP+3")
• For both timers A and B: only positive adjustments seem to have any effect on Actual FPS (=they lower it).
  Negative adjustments ("FP-1", etc.) don't allow me to fine-tune it the other way by raising it. They have no effect - it's the same as setting "+0".

Given these two issues, I can't achieve the required precision for 59.923.  The closest values I can get are 59.946 (NTSC default) and 59.887, nothing in between.

Are there any other options hidden somewhere that could make a difference?
Does Bilal's build have additional features that could improve precision for FPS override? (didn't see relevant mentions in that thread, but perhaps I've missed something)

For reference... on my camera, the main clock is 32.00 MHz and the default timer settings for 60 FPS are A = 528 (+0), B = 1011 (+0).

Any help appreciated.

[923]

My goal is to achieve a video frame rate that's just below NTSC's 59.94 fps.  Or to be exact, 59.923.

Why? - I'm trying to shoot some footage of a CRT monitor that runs at just that frequency. "Classic" computers and consoles often deviated from NTSC specs just a bit, and that's what I'm trying to capture (see http://nerdlypleasures.blogspot.com/2017/01/classic-systems-true-framerate.html).

With my EOS 700D, Canon's 60 FPS setting (which I assume is really 59.94..) produces dark bands and tear-lines moving up the screen, since it's just a bit too fast to sync with the CRT's vertical refresh rate.

Does ML make it possible to achieve something closer to 59.923?  Or 59.9227 to be even more exact?  If so, how could I set this up?

Thanks.