Magic Lantern Forum

Using Magic Lantern => Raw Video => Topic started by: actingnurse on June 10, 2014, 12:38:29 PM

Title: Slow-motion on 5DM3
Post by: actingnurse on June 10, 2014, 12:38:29 PM
I'll begin filming my next short in the Spring (2015). There's one shot that I really want at the end where one of the characters dies... I want this to be slo-mo. Not drastic just maybe 75% speed - the cinematic slightly slowed vibe. I know that's not a great description, but I don't know how else to describe what I'm envisioning lol.

Is this doable in RAW on my 5Dm3? I've never tried a slo-mo shot before so this will be a first. I'm wanting to work out all logistics way before I get to the shoot. Will I need to upscale the shot? I've never done this before so when I frame the shot while filming - will I need to allow more headroom to factor in the upscale later?

Thanks!
Title: Re: Slow-motion on 5DM3
Post by: Kbam on June 10, 2014, 02:10:24 PM
if you shoot 30fps and set the clip to use 25fps in after effect, it should give you the result.
Title: Re: Slow-motion on 5DM3
Post by: Danne on June 10, 2014, 05:23:51 PM
this might be helpful
Title: Re: Slow-motion on 5DM3
Post by: actingnurse on June 10, 2014, 09:52:52 PM
Thanks for the posts guys. Here's about the speed I'm looking for

from 0:06 to 0:10 and around 1:40... just slightly slower than normal... basically the scene will be a gun to the side of a girl's head... she closes her eyes... a tear rolls down slowly the gun flashes... then she collapses slower than normal speed... not one of those twixtor super slow moves.. just the slightly slower than normal cinematic feel.. damn that's a hard thing to describe lol.

here's the clip
https://www.youtube.com/watch?v=ASGecn37_cM&feature=kp (https://www.youtube.com/watch?v=ASGecn37_cM&feature=kp)
Title: Re: Slow-motion on 5DM3
Post by: actingnurse on June 10, 2014, 09:54:35 PM
Danne - exactly what I want.

I'm guessing they recorded in 50fps then forced it to 24fps in post? not sure how to do that but i don't think it's too hard. First time working with slo-mo.

So shutter speed 1/100 with 50fps right?
Title: Re: Slow-motion on 5DM3
Post by: actingnurse on June 10, 2014, 09:56:09 PM
Also - I don't have everything handy - can 5Dm3 handle 50fps at 1080? or will it bog the card. I'll be using a Lexar 1066x
Title: Re: Slow-motion on 5DM3
Post by: Danne on June 10, 2014, 10:20:00 PM
Danne - exactly what I want.

I'm guessing they recorded in 50fps then forced it to 24fps in post? not sure how to do that but i don't think it's too hard. First time working with slo-mo.

So shutter speed 1/100 with 50fps right?

It,s me who done the movie. I just work with 25fps project or whatever I want my end result to become to create slowmotion effect. Good luck and you should try it out yourself to find out the rest.
Title: Re: Slow-motion on 5DM3
Post by: mannfilm on June 12, 2014, 06:39:46 PM
You are limited to 24FPS shooting 1080p RAW. You can go 48 FPS at 720p Raw. If you really need the effect, I'd shoot h.264, not raw, at 60 FPS - 720p, and blow up in post.
Title: Re: Slow-motion on 5DM3
Post by: WeekendWarrior on June 12, 2014, 08:34:44 PM
You can record 1920x818 at 48FPS and slow it down to 23.976.. I've done it here -- >
Title: Re: Slow-motion on 5DM3
Post by: g3gg0 on June 12, 2014, 09:30:17 PM
with good footage you can also use http://slowmovideo.granjow.net/
Title: Re: Slow-motion on 5DM3
Post by: eyeland on June 13, 2014, 10:09:53 AM
with good footage you can also use http://slowmovideo.granjow.net/
Pixelbending like Kronos and Twixtor?
How does it compare in terms of quality and processing speed to the two?
Title: Re: Slow-motion on 5DM3
Post by: g3gg0 on June 13, 2014, 01:41:59 PM
i never used any of them, just played a bit with slomovideo :)
Title: Re: Slow-motion on 5DM3
Post by: actingnurse on June 14, 2014, 07:02:59 PM
Thanks for the link g3gg0. Thanks for the tips guys.. I really appreciate it!
Title: Re: Slow-motion on 5DM3
Post by: allemyr on June 23, 2014, 11:26:05 PM
You can record 1920x818 at 48FPS and slow it down to 23.976.. I've done it here -- >

How did you manage recording 48 fps at 1920x818? I can just record stretched options.
Title: Re: Slow-motion on 5DM3
Post by: allemyr on June 24, 2014, 12:57:38 PM
How did you manage recording 48 fps at 1920x818? I can just record stretched options.

I can just get around 40 fps with 1920x818 when using 30fps as start frame per second.Using a Lexar 1066x.
Tips on how to manage 48 or 50 fps at 1920x818 are welcome :)
Title: Re: Slow-motion on 5DM3
Post by: Toffifee on June 26, 2014, 05:55:13 PM
He didn't say he didn't use squashed images, but if he didn't squash them, I'd be interested too how he got ti.
Title: Re: Slow-motion on 5DM3
Post by: Scott Free on July 08, 2014, 11:14:41 AM
I think he used FPS override... its the only way I can think of.