Webcam PowerConf C300 Zooms in and Out unexpectedly - how do I control that?

I was on a Zoom call last night, and unexpectedly, the camera zoomed in until my face filled the frame. If I shifted my position, it was very slightly - certainly not enough to trigger the camera to adjust.

A few people complained it was distracting, and I told them I had no idea how to control the zooming in and out? Is there a way I can manually control it?

And tint - I wish I could also control color tint!

I think there may be a few to have it right now.

I would try for a quicker response.