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Shutter Question
- Thread starter Bono
- Start date
Barry_Green
Moderator
Won't make much of a difference if any. Film cameras use anywhere from a 150 to a 220 degree shutter, and it all pretty much looks like film. Shutter Off is 1/50, and 180 degrees is 1/48.0, so it's practically no difference.
Using the degrees-based shutter is good if you're changing frame rates though, as it keeps the motion consistent and filmlike during under- or over-cranking.
Using the degrees-based shutter is good if you're changing frame rates though, as it keeps the motion consistent and filmlike during under- or over-cranking.
There is a thing that I don't understand....
The most easy way to understand it is with the lowest frame rate.
So: We have 12fps. Then, If I turn ON or OFF the shutter, the results are pretty much the same (well, maybe not the same, but close).
BUT if I put the camera in FILM MODE and then I put the syncro scan in 350.0degrees... I have the feeling of an open shutter in film.
To me, at least that I'm mistake, it has nosense. Shutter OFF must mean shutter at 360degrees.
In other hand, shutter off in a varicam it's the same than 360degrees.
This is important, specially for undercranking, because if you shoot 12p with the shutter ON, it's almost the same than shooting in 24p at 180degrees, and then fasten (is it right to say it this way?) everything in post. But, if you shoot 12p with a shutter of 350degrees (the hvx doesn't allow me to go up to 360), you have a pretty nice fast and fluid picture, thanks to the long exposure of the 12p.
and, btw, if we put the shutter at 350degrees, at 12p the camera has more sensivity.
Last week I shooted night exteriors with a varicam, and setted at 4p, with the open shutter, I lighted a building with just a 2.5K HMI, and I had pretty detail in the stars, and since nothing was in movement, I only had to make longer shoots to make it look like a regular image.
The most easy way to understand it is with the lowest frame rate.
So: We have 12fps. Then, If I turn ON or OFF the shutter, the results are pretty much the same (well, maybe not the same, but close).
BUT if I put the camera in FILM MODE and then I put the syncro scan in 350.0degrees... I have the feeling of an open shutter in film.
To me, at least that I'm mistake, it has nosense. Shutter OFF must mean shutter at 360degrees.
In other hand, shutter off in a varicam it's the same than 360degrees.
This is important, specially for undercranking, because if you shoot 12p with the shutter ON, it's almost the same than shooting in 24p at 180degrees, and then fasten (is it right to say it this way?) everything in post. But, if you shoot 12p with a shutter of 350degrees (the hvx doesn't allow me to go up to 360), you have a pretty nice fast and fluid picture, thanks to the long exposure of the 12p.
and, btw, if we put the shutter at 350degrees, at 12p the camera has more sensivity.
Last week I shooted night exteriors with a varicam, and setted at 4p, with the open shutter, I lighted a building with just a 2.5K HMI, and I had pretty detail in the stars, and since nothing was in movement, I only had to make longer shoots to make it look like a regular image.