Visual Upgrade â€“ Feedback in ARMA 3 - DEVELOPMENT BRANCH Posted June 3, 2016 Yes, I sadly agree with you... About the aperture: is it possible to change it outside the camera ? I doubt it. The aperture is adjusted dynamically based on light levels and desired exposure value. edit: You could do what defunkt suggested above, but it would only look right for a given range of light levels. Setting the aperture to 140 will make day look okay, but night will be literally completely black.