Canon C300 mark II Stuck and dead pixels

Brainydanny — Thu, 30 Apr 2026 21:21:10 GMT

I have bright green noises in my canon c 300 mark II only when I go in the recording mode.

How can I fix this?

Re: Canon C300 mark II Stuck and dead pixels

NatalyaP — Sun, 03 May 2026 21:06:33 GMT

Greetings Brainydanny,

The bright green noise you are seeing in your viewfinder or on your monitor is most likely the Focus Peaking feature, which is a helpful manual focus aid rather than a defect in the camera's sensor. Peaking works by highlighting the sharpest areas of your image with a high-contrast color—often bright green—so you can easily see exactly what is in focus while in recording mode. This highlight does not appear on your actual recorded footage; it is simply a visual guide for the operator that disappears when you switch out of the recording or standby screens.

To turn this off or change the color, navigate to the Assistance Functions menu (usually indicated by a small screen icon) and locate the Peaking setting. You can toggle it to "Off" to clear your display entirely or adjust the "Select" option if you prefer a different color like red or white. If the green noise persists even after turning Peaking off, it may be worth checking your Black Balance by selecting "ABB" in the menu with the body cap on to recalibrate the sensor.

Re: Canon C300 mark II Stuck and dead pixels

Brainydanny — Sun, 03 May 2026 21:22:11 GMT

Hy NatalyaP,

They are not the focus peaking features, I was shooting a kitchen scene few days ago and in the middle of the scene, it just happened.

They even appear in the recorded video.

I tried ABB 3 times with the body cap on but also didn't solve the problem.

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Canon C300 mark II Stuck and dead pixels

Re: Canon C300 mark II Stuck and dead pixels

Re: Canon C300 mark II Stuck and dead pixels