I like trying to simplify stuff to basic language and I am happy it was helpful
Comment on Epstein Files: X Users Are Asking Grok to 'Unblur' Photos of Children
HereIAm@lemmy.world 1 week agoSo Wide open = low coverage = small f stop -> lots of light -> “fast” shutter speed. And then the other way around. I think you finally worded it in a way it can stick in my brain! I like thinking about the f value as how much you’re covering the lens.
Krauerking@lemy.lol 1 week ago
Zink@programming.dev 1 week ago
To add more specifics here for you, note that the f-stop is usually shown as a fraction, like f/2.8, f/4.0, etc.
So first of all, since the number is on the bottom of the fraction, there’s where you get smaller numbers = more light.
It’s also shown as a fraction because it’s a ratio, between your lens’s focal length (not focal distance to the subject) and the diameter of the aperture.
So if I’m taking a telephoto shot with my 70-200 @ 200 with the aperture wide open at f/2.8, that means the aperture should appear as 200/2.8 = 71.4mm. And that seems right to me! If you’re the subject looking into the lens the opening looks huge.