Question:

- Will the FOV shifted when the camera temperature increased?


Answer:

Yes, it is possible to shift the FOV. Because the camera temperature will increase over the time. It means the temperature will increase in the mount, optics and in the sensor. It will cause a slight movement in the each component. If you want to have higher accuracy, you have to start the camera and wait until the temperature stable then start your measurement. Once the temperature is stable, there should not have much movement in the FOV.