60" print from a frame grabbed from 4k video with GH4

jurgen

Mu-43 Regular
Joined
Jan 27, 2014
Messages
120
Awesome. Such a cool tool to have.

The one "downside" to this sort of thing is that you kind of have to shoot with the intention of frame grabbing from video (i.e. with a high shutter speed), which ruins the video as a video. You can probably frame grab a static subject at the normal 24p - 1/50 but otherwise, the motion blur will be too much for most applications.

It's still awesome, though, and great for things like sports, where you could shoot 4K/30p/1/1000 shutter speed and get some sick grabs.
 

orfeo

Mu-43 Top Veteran
Joined
Sep 27, 2013
Messages
673
Location
FR
in near future, all sport photographer and all birder or more generally every action shooter will use shot Grabbed from video!
 

RRRoger

Mu-43 Regular
Joined
Apr 28, 2014
Messages
57
Location
Monterey Bay
Awesome. Such a cool tool to have.

The one "downside" to this sort of thing is that you kind of have to shoot with the intention of frame grabbing from video (i.e. with a high shutter speed), which ruins the video as a video. You can probably frame grab a static subject at the normal 24p - 1/50 but otherwise, the motion blur will be too much for most applications.

It's still awesome, though, and great for things like sports, where you could shoot 4K/30p/1/1000 shutter speed and get some sick grabs.
And, I wonder how good the light would have to be to shoot at 1/1000 shutter speed.
I do the Run thru Redwoods every year and always have problems getting enough light.
I normally shoot stills at about 500s and ISO 6400+ with a FullFrame f/2.8 lens.
Perhaps I could use a fixed f/1.8 or SpeedBooster with Nikkor and max the GH4 out at 6400 ISO and shutter speed at high as 1/600.

I shot a Grand Prix Horse Event with a D800e from a TriPod at 1080 P30 and it did not suffer at all from a higher shutter speed.
Of course I hate the Cinemic (shudder) look and you may want it.
Those frame grabs were good at 1920 x 1080, so I imagine the 4k video ones should be better with 4 times the pixels.
 

OzRay

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Joined
Jan 29, 2010
Messages
4,991
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South Gippsland, Australia
Real Name
Ray, not Oz
I've said it before, but if I were still shooting sports, I would definitely be shooting with a GH4 and using nothing but video for the likes of football and just taking screen grabs for news publishing. I would no longer have to wait for the decisive moment, but would have the lead-up, action and post-mortem.
 
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