The best ratio of shutter speed and aperture in various weather conditions

Outdoor exposure basis: from 8 am to 4 pm, you can press the following aperture: GB24 fixed film can be shot with a shutter of 1/125 second; GB24 fixed film can be shot with a shutter of 1/250 second .

Available light intensity on sunny days: F/16 Available on cloudy days: F/11 Available on cloudy days: F/8 Available on rainy days: F/5.6