GH4 Shutter angle instead of shutter speed. Life changing!

renegadewill

renegadewill

Well-known member
I have owned a gh4 for a few months now. Shot a few projects, and now I finally found that it will read shutter angle instead of speed! Coming from a film background shooting on Arri Sr2s, Sr3s, even a Panavision GII, so when I found this I was beyond excited.

No more thinking about the shutter speed vs. frame rate to get correct motion. Just keep it at 180d for correct motion and at any frame rate you have the correct shutter.

If you are looking for a Saving Private Ryan storming the beaches look then crank it to 45d and you got it!


I might be the last person on the planet to find this feature, but I am too amped to have shame. Enjoy if you didn't know. Call me an idiot if you put it on that setting out of the box. :2vrolijk_08:
 
renegadewill said:
Call me an idiot if you put it on that setting out of the box. :2vrolijk_08:
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You're an idiot!


(I don't really think so, it's one of many easy settings to miss, especially when you're used to 'almost' 180 shutter speeds on DSLR-ish cameras, but hey, you said I should and I wanted to be accommodating) ;)
 
mcbob said:
You're an idiot!


(I don't really think so, it's one of many easy settings to miss, especially when you're used to 'almost' 180 shutter speeds on DSLR-ish cameras, but hey, you said I should and I wanted to be accommodating) ;)
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Thank you for that!

Thank you again for the 'almost'. 1/50 for 23.98 is not correct and never was, but it didn't matter because we all were just so happy to have practically nothing in focus for the first time.
 
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The GH4's ability to adjust shutter angle
One aspect that tends to throw people off who are new to shooting video with DSLR and mirrorless cameras is properly adjusting shutter angle. The general rule in the past was to make sure that the shutter-speed setting on the camera was twice the speed of the frame rate. So, if you are shooting 24p footage, you must keep the shutter speed of the camera at a 50th of a second. The problem is that this is a tradeoff, because 50 isn't two times 24. It's a compromise. The GH4 does away with this issue by offering the ability to adjust to a true 180-degree shutter angle. (20:00)
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http://www.bhphotovideo.com/explora...ey-information-our-panasonic-gh4-live-webcast
 
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Great tip chaps. Tired of switching between 4k and 96 fps and back and then forgetting to change the shutter from 100th.
 
Is there a way to lock the dial so you don't accidentally knock the setting out its 180 degree sweet spot?
 
c3hammer said:
Except when you finally sort out that a little bit slower than 180 shutter looks better in almost all cases :)

Cheers,
Pete
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I am gonna have to disagree with you on that 99% of the time. Maybe in dream sequences...maybe or something like that. I would prefer like a step printing effect instead.
 
Exactly wwjd !!!

Just to clarify, 1/40th shutter in 24p and 1/50th in 30p and as a compromise I almost always shoot 1/60th in 60p mode. I also often shoot 1/30th in 4K UHD 30p mode for incredible low light as well. I'll take motion blur all day over stuttery motion.

The notion of 180 degree shutter is a relic of film and due to the lack of space between frames with digital, frame rate and shutter angle will never compare equally between the formats and thus requires different methods.

Cheers,
Pete
 
c3hammer said:
Exactly wwjd !!!

Just to clarify, 1/40th shutter in 24p and 1/50th in 30p and as a compromise I almost always shoot 1/60th in 60p mode. I also often shoot 1/30th in 4K UHD 30p mode for incredible low light as well. I'll take motion blur all day over stuttery motion.

The notion of 180 degree shutter is a relic of film and due to the lack of space between frames with digital, frame rate and shutter angle will never compare equally between the formats and thus requires different methods.

Cheers,
Pete
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It really depends on if you are making cinematic or videoishy content. It is your preference.
 
wwjd said:
180 being more video-ish
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Apples and turnips...

...The 180 degree shutter (never was a "rule") came about from early motion picture cameras where the shutter was a rotating disk with half of it "cut out" so you had 180 degrees of "opening" and 180 degrees of solid disk blocking the film while it was being pulled to the next frame. At the 24fps frame rate the spinning disk shutter with half of it cut out gave the film frame 1/48th of a second exposure. Whatever "look" resulted was from the film stock characteristics, the lens, and lighting.

Later cameras had an adjustable opening on the rotating shutter disk that allowed different shutter speeds (and different angles than the 180 degree opening).

Our DSLRs (in motion picture mode) all have electronic shutters, and like C3hammer says references to shutter angle are a holdover "relic" from early film days. Still works out to a shutter speed and the only effect it can have on something maybe having a "filmic" look is degree of motion blur. 1/48th matches the motion blur we seem to be used to, 1/50th is so close there is little difference, and 1/60th is still close enough.

More important these days may be "banding" and "flicker" from artificial lighting (flourescents and CFLs are worst about this) on a power line frequency that is not in synch with the shutter speed we use. I got banding bad with CFLs on 60Hz power while using 1/50th shutter speed.
 
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