635
Check your biases
(lemmy.world)
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
this post was submitted on 01 Sep 2024
635 points (97.2% liked)
Microblog Memes
5832 readers
1008 users here now
A place to share screenshots of Microblog posts, whether from Mastodon, tumblr, ~~Twitter~~ X, KBin, Threads or elsewhere.
Created as an evolution of White People Twitter and other tweet-capture subreddits.
Rules:
- Please put at least one word relevant to the post in the post title.
- Be nice.
- No advertising, brand promotion or guerilla marketing.
- Posters are encouraged to link to the toot or tweet etc in the description of posts.
Related communities:
founded 1 year ago
MODERATORS
Oooh focal length. I was like "those hair are not 20 mm" for a moment.
Wow I had no idea
It's important to note that it's the subject distance that's the primary factor, not the focal length. The focal length is secondary in that it dictates how far you would be to achieve the given framing. If you shoot the picture at 200 mm from the example and then without moving you shoot again at 20, you'll have the same perspective, just way smaller subject in the frame; if you then crop in the picture shot at 20, you'll have the same framing too, just way less pixels.
If you're half a metre away from the dude's nose, you'll be roughly 60 cm away from his ears (20% more distance), but if you're 5 metres away from his nose, you'll be 5.10 m away from his ears (only 2% more distance) - and this is what creates the difference in apparent sizes of the facial features relative to one another.
This should go to YSK.
(With @kamen's explanation from this thread or something like that.)