Best options for Slow Motions with Panasonic GH3?

[Wit]

Slow Motion - Which option is better for making slow motions with the Pana GH3?

 

 

1. - Choose the highest fps so 50fps instead of 24fps in the Menu and then apply the slow motion in post?

 

2. - or Choose the slower/faster option in the Menu therefore slower down in-camera?

      What is this function actual doing - what does actual happen in terms of shutter speed or ... ?

 

 

Can you combine 50fps and 24 fps footage on the edit table without any problem?

 

 

Interlaced versus Progressive?

Progressive gives a smoother look but I just saw a video of somebody explaining you should opt for interlaced when slowing down to have a smoother look. What are your thoughts?

 

 

One other question? - AVCHD is just an compression mode but to be on the safe side. Can 2 cameramen combine AVCHD and Move footages on the edit table? What things should we be aware of? Choosing both interlaced or bot progressive and....?

 

 

 

Thanxs you for helping out! T

The Panasonic manual isn't really helpful for newbies like me.

[Joseph Moore]

Choosing to slow down in-camera is the same as choosing to shoot at 60/50 fps...the camera just automatically applies the metadata so that your NLE will play it back at 24fps. It's a convenience factor.

 

In other words, if you shoot at 60 fps in camera, you have to slow it down 40% in your editor. If you shoot with the camera applying the 40% slow-down, it records the exact same number of frames, you just don't have to do any extra work after the fact.

 

You definitely do *not* want to shoot interlaced. That's old info based on cameras that could only shoot 60i, not 60p.

 

Whether you can mix formats on the timeline of your editor is up to the editor. Most modern editors such as Premiere, FCPX, etc. do allow this.

[Joseph Moore]

PS. Make sure you set your shutter speed at twice what you do for normal footage so that the motion blur ends-up looking the same.

[Wit]

Thank you Joseph!

 

So to be completely clear about what your saying : If using MOV 50p /fps 72mps  or AVCHD 50 p/fps - you should use 1/100 as shutter speed? Does this rule for shutter speed only apply when cutting 24 p and 50 p together or should you always apply this? 

[/p/]

Your shutter speed should always be as close to double your fps as possible. If shooting 50p use 1/100th if using 25p use 1/50th and you will get the same motion blur for both files.. It also gives the "cinematic" look.

 

I say as close as possible since if you're shooting 24p there is no 1/48th (unless you have a hacked 5D2 or GH2?) which is why you also choose 1/50th for 24fps (some people use 1/40th).

[Ben Prater]

Ran into a video recently that said shooting 1080 60p was the way to go slow-mo on the GH3. It means that you can still watch the video and hear audio (which you can't normally do with overcranked footage) -- but also easily slow it down in post because the extra data is there. It's like shooting video RAW on cameras -- you decide on the ISO in post, not on set.

[Wit]

Your shutter speed should always be as close to double your fps as possible. If shooting 50p use 1/100th if using 25p use 1/50th and you will get the same motion blur for both files.. It also gives the "cinematic" look.

 

I say as close as possible since if you're shooting 24p there is no 1/48th (unless you have a hacked 5D2 or GH2?) which is why you also choose 1/50th for 24fps (some people use 1/40th).

 

 

Thanxs /p/! So my conclusion above your answer is right. 24p = 1/50 and 50 p = 1/100

And it also helps avoiding flickering when filming indoors with artificial lighting.

 

 

 

 

Ran into a video recently that said shooting 1080 60p was the way to go slow-mo on the GH3. It means that you can still watch the video and hear audio (which you can't normally do with overcranked footage) -- but also easily slow it down in post because the extra data is there. It's like shooting video RAW on cameras -- you decide on the ISO in post, not on set.

 

Thanxs Ben! I can't go to 60p - 50 p is the max (european model?)

Yeah sounds like a good argument for choosing 1080 50 p. Also because if you do an extra separate audio recording - the referential audio track in camera is still usable. 

[Wit]

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