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submitted 4 months ago* (last edited 4 months ago) by Blaze@sopuli.xyz to c/pics@lemmy.world

South Korea’s record-breaking Olympic shooter -Kim Yeji.

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[-] eee@lemm.ee 7 points 4 months ago* (last edited 4 months ago)

Eyesight is not the issue here - this isn't an eye test. At 10m the target looks like a small circle, there isn't any further detail to see. Air pistols can only have iron sights, so there are three things to look at while shooting: the rear sight, the front sight, and the target. If you're focusing on the right thing (your sights), the target will be slightly out of focus anyway.

So yes, anyone with perfect eyesight can get lenses made, but it doesn't help much. Back when I was shooting, the best guy on my team had like +0.75 in his shooting eye but he didn't bother wearing corrective lens while shooting. That said, I was a teenager so standards were different - maybe you do need perfect eyesight to compete at an Olympics level. But everyone can buy shooting glasses with corrective lens anyway.

The glasses are custom in the sense that nobody wears them outside of shooting because you look like a dork in them, but they can be bought off the shelf - this is the first result I found on Google, there are tons more:

https://buinger.com/Shooting-Glasses

The elephant... I've never seen it before, it's probably light enough that it doesn't work as a counterweight. But you don't need that to judge your own heart rate. When your gun is lifted you can feel your own heartrate.

As for cheating... The real cheating occurs with stuff like heart medication to make your heartbeat slower, and beta blockers to reduce anxiety. A lot of shooting is a mental game. At a high enough level, nearly every shot needs to be a bullseye, so it's about maintaining that consistent standard and not letting the occasional 9/10 shot creep into your head and affect the rest of your shots.

[-] atzanteol@sh.itjust.works 3 points 4 months ago* (last edited 4 months ago)

If you’re focusing on the right thing (your sights), the target will be slightly out of focus anyway.

One description I found said that the lens part of her glasses contains an adjustable "iris that can be adjusted to change the perceived depth of field" - which sounds to me like an adjustable aperture in photography. With a smaller aperture (larger f-number in photography) I believe she would potentially be able to have both the sights and the target in focus? Otherwise I'm not sure what the point would be.

Edit; Oh - and the elephant is her daughter's. :-)

[-] LH0ezVT@sh.itjust.works 2 points 4 months ago* (last edited 4 months ago)

As someone else already said, you don't see the target anyway. You focus on your sights, not the target, because unlike stuff like hunting, it's much more important to line up the shot perfectly than keeping track of what you shoot at (the discs tend to not run away). And at 10m, the palm-sized target is just a black circle.

Iirc most people aim below the target on purpose (and adjust the sights) anyway. That stuff confuses the hell out of me when I pick up someone else's gun. Is it set to aim dead center? Is it set to aim just below? Is it set to aim at 4.20 mm to 69° down to compensate for that dude's preference? Who knows!

[-] atzanteol@sh.itjust.works 1 points 4 months ago

Yeah - I read the other comments thanks - it would be helpful if you read mine.

So you don't look at the target at all? Like you're only looking at the sights and hope there is a target downrange somewhere? No - right? Because "most people aim below the target" right? And near-sighted people wouldn't need glasses at all if they "didn't look at the target". I don't doubt that the focus is on the sights, but the sights are pointing at something... right?

So what I'm wondering is - what is the point of an adjustable aperture on her lens then? I was speculating that it's because it would keep the tiny distant target in focus while she also lines up the sights. Or maybe it helps keep the near and far posts of the sights in focus at the same time? Human vision can have a pretty narrow depth of field.

[-] atzanteol@sh.itjust.works 1 points 4 months ago

And in fact it seems that my speculation may be correct: https://www.pyramydair.com/blog/2008/06/10-meter-pistol-shooting-part-4/

"Because the light is reduced, the shooter’s eye acts like a camera lens and adjusts the depth of field (range of distances at which objects appear in focus) to the maximum. That’s what keeps both the sight picture and the bullseye in sharp focus, but the shooter wants the front sight to be in the sharpest focus, because it’s what he focuses on."

So you get a sharper target while focusing on the very close (by comparison) sight.

this post was submitted on 01 Aug 2024
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