I just shot a short film on a DVX100, NOT the 100A mind you. A lot of it was shot using a shutter speed of 1/500 of a second, for that strobe effect that everyone is so facisnated with. anyway, now looking at the footage, I am somewhat displeased because it looks somewhat grainy (It's not horrible though because it fits the mood of the short). I went back to the camera and experimented with it. on my DVX100, the video actually gets grainier as the shutter speed gets faster. I was wondering if there is some setting I don't know about, or if they fixed this problem in the 100A model.
Shutter Speed causing grain
- Thread starter DPbryan
- Start date
Drew599
Veteran
Re: Shutter Speed causing grain
That's kind of the same problem with film. The less light you have hitting the CCDs the grainier it will get. Of course I'm not an expert on this subject but I do know a thing or two about a thing or two. It would just make sence why it would get granier. Maybe someone around here knows how to lessen the grain but I think it might be a trade off for using a high shutter speed.
That's kind of the same problem with film. The less light you have hitting the CCDs the grainier it will get. Of course I'm not an expert on this subject but I do know a thing or two about a thing or two. It would just make sence why it would get granier. Maybe someone around here knows how to lessen the grain but I think it might be a trade off for using a high shutter speed.
Re: Shutter Speed causing grain
yeah i guess that does make sense. It's like when you're shooting with a film stock with a lower ASA rating, everything is just more grainy. or is it the other way around. anyway, the faster film is grainy and less sharp while the slower film is much clearer and sharper. In film it seems if you wanted to get the stutter effect really nice and clear like in gladiator, you'd want to use a slower film to compensate for the faster shutter speed. I wonder if there's a similar fix for video?
yeah i guess that does make sense. It's like when you're shooting with a film stock with a lower ASA rating, everything is just more grainy. or is it the other way around. anyway, the faster film is grainy and less sharp while the slower film is much clearer and sharper. In film it seems if you wanted to get the stutter effect really nice and clear like in gladiator, you'd want to use a slower film to compensate for the faster shutter speed. I wonder if there's a similar fix for video?
LUCAS_HITCHBERG
Active member
Re: Shutter Speed causing grain
http://www.publishingperfection.com/visual-infinity/vif103/
This is one link that a Google of "grain surgery" uncovered. I read about this SW a few years ago and kinda forgot about it. Be advised, there may be more than one Grain Surgery product. I spotted one for Photoshop and the above for After Effects, but didn't take time to go into a detailed search. From what I remember reading about the SW, it worked wonders. Prob'ly even better today. I think it might even be more affordable, too.
HTH!
LHB
http://www.publishingperfection.com/visual-infinity/vif103/
This is one link that a Google of "grain surgery" uncovered. I read about this SW a few years ago and kinda forgot about it. Be advised, there may be more than one Grain Surgery product. I spotted one for Photoshop and the above for After Effects, but didn't take time to go into a detailed search. From what I remember reading about the SW, it worked wonders. Prob'ly even better today. I think it might even be more affordable, too.
HTH!
LHB
Re: Shutter Speed causing grain
What you see at higher shutter speeds is not noise.The amount of incoming light remains the same because for keeping full signal it's being comensated by wider opening and/or less ND. What you see is aliasing effects on (quasi) still picture details otherwise blurred by the longer opening times.
What you see at higher shutter speeds is not noise.The amount of incoming light remains the same because for keeping full signal it's being comensated by wider opening and/or less ND. What you see is aliasing effects on (quasi) still picture details otherwise blurred by the longer opening times.