Just letting you know that I’ve put my exposure calculator on this website. I developed it a couple of years ago and kind of forgot about publishing it until today.
It allows you to find the most adequate exposure (amount of light reaching the camera sensor) for the environment and scene you are shooting. Keep in mind that it is of course not a hard rule, but rather a general guideline.
If your exposure/histogram already looks good but you would like to modify ISO, aperture, or shutter speed, just dial in your current settings and check its new value depending on changes applied to the other two.
You can also check what the exact shutter speed should be if you add a Neutral Density (ND) filter.
Besides its practical value when you don’t want to start mentally calculating multiple settings changes, it also has some education use, helping you understand exactly how ISO, aperture and shutter speed affect one another.
So, check it out and let me know what you think in the comments, here or on the calculator’s page 😉