On a bright cloudy day with no shadows, which f-stop should you set for the proper film speed and shutter speed conversion?

Setting the f-stop correctly on a bright cloudy day requires understanding the relationship between aperture, film speed, and exposure. On such days, light is diffuse, and while the brightness is still significant, it lacks the harshness that comes with direct sunlight.

Choosing f/8 as the correct f-stop provides a balanced aperture for capturing images under these light conditions. This aperture strikes a good compromise by allowing enough light to enter the camera while maintaining an appropriate depth of field, making it versatile for landscapes or candid shots in this setting.

Using f/8 will enable you to achieve a proper exposure without the risk of overexposing the image, which can easily happen with larger apertures like f/5.6 or f/4, where too much light might enter the camera. Conversely, smaller apertures like f/11 or f/16 would restrict light too much, potentially leading to underexposed images in the relatively bright yet diffuse light provided by clouds without shadows.

In summary, f/8 allows for optimal exposure in bright but cloudy conditions, making it the most suitable choice in this scenario.