NOISY EPIC FOOTAGE @300fps

[Brandon Ripley]

hey guys,

so we just received our red epic and we shot some test shots at 300fps. after playback on the monitor and later in post it was apparent that there was noticeable noise throughout the entire image. Camera was black shade calibrated.

my settings were the following:

resolution: 2k WS
ISO: 400
fps: 300
color temp: 5600
compression: 7:1

Is the footage at 2k a lot noisier than 5k? or is something wrong/am I doing something wrong?

EDIT:

it was a daylight exterior with plenty of light

thanks,

 

[Michael Totten]

There is definitely going to be more noise at 2K (using a smaller part of the sensor).
Are you giving the sensor enough light?

 

[luigivaltulini]

Caio Brandon,
Epic is made for the 5k.
At 2k 300 using a smaller part of the sensor, is normal to have more noise, especially in the absence of light.

Luigi

 

[Brandon Ripley]

it was a daylight exterior with plenty of light.

 

[luigivaltulini]

it was a daylight exterior with plenty of light.

You can post 1 frame R3D trimming here?

 

[Brandon Ripley]

http://vimeo.com/38293930

pw: red

not sure how to post the frame, but here is a link to the clip on vimeo if it helps.

 

[Stephen Mick]

password?

 

[luigivaltulini]

Brandon,
yes is normal noise.

luigi

 

[Brandon Ripley]

ok thank you luigi,

happy to hear that there isn't anything wrong!

 

[Nick Gardner]

Just apply a normal curve to give your self some contrast and actual blacks. If you don't crush the blacks just a tad you are gong to get what you have, which is flat footage with a little noise.

 

[Jeremy Wiles]

I recently shot a video at 300 fps and it was full of noise as well. I had to crush the blacks considerably.

 

[Mark Toia]

Secret is not to under expose.... Shoot at 320asa..

 

[Mike Kushner]

i've think that sticking to 240 fps instead of 300 fps makes a big difference in the amount of noise (its less) and doesn't look very different (in terms of slowing time).

 

[Matthew J]

Two things make a huge difference in terms of noise at 2k. First, shoot in daylight light. HMI or natural light will be 10x cleaner than tungsten due to how CMOS sensors are designed. Second, shoot 320 ISO and don't underexpose. The more the image is underexposed the nosier it will be as the sensor is starved for light.

 

[Jeremy Wiles]

Two things make a huge difference in terms of noise at 2k. First, shoot in daylight light. HMI or natural light will be 10x cleaner than tungsten due to how CMOS sensors are designed. Second, shoot 320 ISO and don't underexpose. The more the image is underexposed the nosier it will be as the sensor is starved for light.

Thanks for the advice. In being careful not to underexpose, I'm also stuck between creating the dark look I want and providing enough light for the sensor. How many stops should there be between subject and background if properly exposed, with the end goal of crushing the blacks and creating a dark room look in post?

 

[Brandon Ripley]

thanks everyone for the tips.

 

[Stephen Strangways]

Thanks for the advice. In being careful not to underexpose, I'm also stuck between creating the dark look I want and providing enough light for the sensor. How many stops should there be between subject and background if properly exposed, with the end goal of crushing the blacks and creating a dark room look in post?

Make it is bright as you can without overexposing any highlights you want to hang on to, and without pushing yourself to a wider f-stop than you want to use. Expose to the right.

 

[Teague Kennedy]

Look at other thread "crazy epic artifacting." You may be experiencing something similar at times. I first noticed this problem in slow mo because you are forced to shoot at a high compression setting. You will probably find it worse when shooting back lit and complex scenes/wide camera. The RED team is working on the issue.

 

[Rob Ruffo]

Thanks for the advice. In being careful not to underexpose, I'm also stuck between creating the dark look I want and providing enough light for the sensor. How many stops should there be between subject and background if properly exposed, with the end goal of crushing the blacks and creating a dark room look in post?

Your video seems to promote the idea that the U.S. should become a Catholic theocracy. You do realize that your constitution separates church and state right?