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Chronos => Chronos User Discussion => Topic started by: Kettner on September 21, 2020, 04:07:14 AM

Title: Importance of black calibration and camera tempature
Post by: Kettner on September 21, 2020, 04:07:14 AM
Hi fellow slow-motion film creators.

I have had the Chronos 2.1 HD for a few days now and been trying to figure out how to get the highest quality footage out of it.
After reading a bit on the forum I saw this post http://forum.krontech.ca/index.php?topic=458.msg2435#msg2435 (http://forum.krontech.ca/index.php?topic=458.msg2435#msg2435) and it has really helped me a lot with removing noise from my clips.

Here is a screenshot of 2 clips side by side. ( filmed a few frames with the lens cap on ) and boosted the exposure to 5 ( DNG files )
The bright "black" was filmed 2 min after camera startup and black calibration
The way more black was filmed 15 min after camera startup and a black calibration just before filming. 

(https://www.dropbox.com/s/pemvyzhu6io4wzg/Screenshot%202020-09-21%20at%2012.40.48.jpg?dl=0)
https://www.dropbox.com/s/pemvyzhu6io4wzg/Screenshot%202020-09-21%20at%2012.40.48.jpg?dl=0 (https://www.dropbox.com/s/pemvyzhu6io4wzg/Screenshot%202020-09-21%20at%2012.40.48.jpg?dl=0)
So to sum up, start the camera up well before shooting, and keep it on for the entire shoot. ( and follow JamesB's guide )
Title: Re: Importance of black calibration and camera tempature
Post by: B.H.V on September 21, 2020, 10:07:59 AM
Thank you for the tip! : )