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Message: <blockquote data-quote="nickt" data-source="post: 491603" data-attributes="member: 4923">Great answers above, I can't add much. But... in reading your question I worry that you don't fully have the f-stop concept nailed down. For instance you ask if f22 would be good for long distance. That's not how it works.F-stop controls the amount of light so of course it must be balanced with shutter speed and iso. F-stop also controls depth of field. That is how much of your subject, front to rear, is in focus from the exact point you focused on. At a very low f stop, a thinner section of your subject will be in focus. At a higher f-stop, more will be in focus front to rear. Distance does come into play though. At 6 feet away and a very low f stop, say 1.8, you might only get your subject's eyes in focus. Tip of nose and ears could be blurry. Raising f-stop will get more in focus, but more light or time or iso is needed. But step back to say 20 feet, keep the f1.8, and the entire head will be in focus. I'm making up numbers here so don't worry about the numbers, just the concept.Here is a video I like explaining exposure and the relationship of shutter, aperture, and iso:<a href="https://www.youtube.com/watch?v=F8T94sdiNjc" target="_blank">https://www.youtube.com/watch?v=F8T94sdiNjc</a>And once you are good with that, here is a depth of field calculator:<a href="http://dofmaster.com/dofjs.html" target="_blank">Online Depth of Field Calculator</a>You can plug in actual numbers and see what the various f stops will do in real situations.Other than guidelines on choosing a fast enough shutter speed, looking for settings suggestions for various situations isn't going to be too helpful. Start with a fast enough shutter speed, then make a good exposure with that shutter speed and then make adjustments (sometimes compromises) from there get the results you need.</blockquote>

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