Issues with noise on the FS700

L

Loaiza

New member
Hello everyone,

I was looking for the answer to my issue in the forum but did not manage to find it, so I'm going to ask.

Does someone had problems with the noise even when there is no problem with light? I'm a new user of a FS700 and this thing is driving me mad.
I don't know if is my fault (probably) or if is a camera thing, but I don't know how to manage the ISO of this camera to won't have this problem.

Thanks!
 
You shouldn't be having any noise issues if you are exposing properly and have the ISO's set at reasonable level, under 1600 or so. So you either you are underexposing or your ISO's are not set up properly.

Do you know how to set the ISO in the menu functions so that you can then toggle between those ISO's with the Lo Med and Hi switch on left side of camera? When I shot with FS700 before 7Q (which is a different animal when it comes to ISO / Noise and Exposure.) I would set 3 different ISO for 400 800 1200 which would give me a good range in well lit situation. I would step up my iso range to 800 1600 2000 in under lit situations.
 
Assuming you're shooting with slog2, the proper practice is to ETTR(expose to the right) That amounts to about 1.5-2 stops of over exposure to put the histogram on the right edge of the limit.
 
I've found that the FS700 is very sensitive to under-exposure. In low light, I find I can boost the ISO up to 6400 and slightly over-expose, and get a much cleaner image than if I was to shoot at a lower ISO.

Conversely, even in well-lit scenes at ISO500, a slight under-exposure can lead to noisy images once corrected.
 
I know what you mean, sometimes even wide open with a fast lens there's not enought light to ETTR.
In those cases I use Neat Video, an amazing plugin for After Effects that does wonders at cleaning noisy images.
The full version of DaVinci Resolve also has an amazing de-noiser. It's extra work in post but you can save
footage that otherwise would not be usable.

Pierre Tremblay / Listo Films
4064, Boulevard Saint-Laurent, #2
Montréal, QC, H2W 1Y8
514-276-0830
514-233-5231
1-888-558-0830

Visitez notre nouveau site web:
Visit our new website:
http://www.listofilms.com/
 
Listo said:
I know what you mean, sometimes even wide open with a fast lens there's not enought light to ETTR.
In those cases I use Neat Video, an amazing plugin for After Effects that does wonders at cleaning noisy images.
The full version of DaVinci Resolve also has an amazing de-noiser. It's extra work in post but you can save
footage that otherwise would not be usable.

Pierre Tremblay / Listo Films
4064, Boulevard Saint-Laurent, #2
Montréal, QC, H2W 1Y8
514-276-0830
514-233-5231
1-888-558-0830

Visitez notre nouveau site web:
Visit our new website:
http://www.listofilms.com/
Click to expand...
You can use neatVideo, as that does work very well. However, with the FS700, it is quite easy to turn up the ISO/Gain, without an increase in objectionable grain.
 
Evgeny said:
Hello everybody. I don't speak English, so I'll just put here some video test
https://youtu.be/-fBiqtGaW4w
Click to expand...

Thanks for the test. Though judging noise with you tube compression is like judging an audiophile amplifier sound system with apple ear buds. Even so, I do see lots of noise in the upper ISO's in the underexposed areas (certainly the subject with the street lamp key is holding up nicely, but there appears to be lots of light there)

I don't like shooting SLOG with 8bit, I'd rather bake in a solid exposure into the image, heavy grades on 8bit footage is no bueno. But if you need the low light sensitivity of the base 2000ISO, I guess you can get by with it the noise and some neat video noise reduction or similar. Though the renders can get heavy on a long show.

Personally when I used to shoot AVCHD8Bit (Before 10bit 7Q 4K2HD ) I would use the "photo" picture profile and stayed away from the cinema profiles. It baked in saturation and contrast and I probably lost a stop or a half of dynamic range but the images looked fantastic out of the camera with limited grading. Just a nudge here and there.

But my shooting in 8bit days are long gone...
 
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