- Posts: 3
- Joined: Wed Apr 17, 2019 10:08 am
- Real Name: Heleen van Tonder
TigerLillyProductions wrote:Si I'm trying to figure out why I would be getting noise in my images shooting at ISO 1250.
Attached you'll see an image of the scene just for reference. It has no grade on and was shot in B-Raw 12:1. There's also the waveform added for reference.
As far as my research and knowledge goes ISO 1250 is the second Native ISO and should show very little to no noise. You can't tell from the images but once I add a LUT, the noise shows a lot over the entire image and especially in the shadows.
Or am I understanding this wrong? How do you film a low-light scene without getting noise? Or do you always light the scene very well and then edit it to look like night time in post?
PLEASE HELP ME UNDERSTAND.
Hi and welcome to the forum Heleen!
While ISO 3200 is the second native ISO (besides ISO 400) which does show less noise than ISO 1000 of the first stage, it is a common misconception that this will show little noise - even at ISO 1250.
The reason of this misconception is, that most camera manufacturers are implementing heavy post noise reduction into their cameras - like Sony does with their Alpha series. Initially this makes high ISO shots look surprisingly clean but upon closer inspection you will see this comes at the cost of the loss of image texture details. Everything tends to look like smooth plastic.
Blackmagic has another approach to this and does no (cameras before BRAW) or very little noise reduction in camera (cameras with BRAW) and therefor gives you the option to do that later in post with a high quality tool which does way outperform current in-camera solutions.
Another misconception is to film planned low-light scenes in low-light. That is not the way to do it.
The better approach - and like most high-end film productions do it - is to light the set quite bright, but take care of the relative light ratios and then use lower ISO settings and/or lower the brightness in post. That way you will get super clean shadows and better control of the end result.
BTW, if you want others here to evaluate your shots, please post image samples in native resolution or even better post short original source clips to download.