1. Sunny 16: what it is and how it works Sunny 16 is a rule of thumb for film photographers that states that on a sunny day, the correct exposure for a photo taken with an ISO 100 film is f/16 at 1/100th of a second. This rule can be applied to any film speed, simply by multiplying or dividing the aperture and shutter speed by the film speed’s ISO number. For example, on a sunny day, a photo taken with an ISO 400 film would be correctly exposed at f/8 at 1/400th of a second.
2. Why Sunny 16 is still relevant for film photographers Despite the fact that digital cameras have replaced film cameras for many photographers, Sunny 16 is still a useful rule of thumb to know. This is because it can help you to quickly and easily calculate the correct exposure for a photo, without having to rely on a light meter. It’s also a good way of getting an idea of the right exposure for a scene before you take the photo, which can be helpful when you’re shooting in manual mode.
3. How to make the most of Sunny 16 for your photography One of the best ways to make use of Sunny 16 is to use it as a starting point for your exposure. Once you’ve taken a few photos using the rule, you can then start to experiment with different aperture and shutter speed combinations to get the results you want. For example, if you want to create a shallow depth of field, you can try using a lower f-stop number. Or if you want to freeze action, you can use a faster shutter speed.
Also you can view some examples/experiments below!