Subtitles section Play video Print subtitles Hello, I'm greg I'm dan we are the slow mo guys and today we're not in my back garden where it's nice and bright We're in my dark dingy Garage where we keep our props so news you're for us The reason for that is because we've had a lot of requests to film an iris Constricting when it comes into a lot of light very suddenly you can't do that outside and we're gonna film this on a macro lens A thousand frames a second. Usually the macro lenses we've used their slightly bulky and I think I'd actually Struggled to get at your eyeball because of your big old eyebrow in the undertow brow an eye socket So we're using this Laur macro lens, which is a very odd shape But it took the lens cap off It also has LED lighting and I think with this I'll actually be able to get right up against your ball My eyeball, oh as long as you know poke my eye out Nakia something the widest aperture on this lens is an f-14 Which is essentially gonna make it very dark on my shooting out a thousand frames a second So it's very good that it's got a light on the end of it. sticky on the camera here It's actually longer than the camera Let's tell you that well, we could either film your eye or I could give you some sort of medical examination I know which one I prefer So when set close to infinity looks like just a normal lens Except you can go much much much closer Now in a bit right, there you go down slightly Perfect. You're right in the middle that Good, I'd even just my breathing is like rocking me all over the place. Don't bash your eyeball. Oh, see you Feel relaxed I mean, honestly This is gonna be one of the easier videos for me Technically to do because all I have to do is sit in a chair really still At the same time is not relaxing cuz I'm gonna have a huge lens shoved in my eyeball and a bunch of bright lights turned On immediately. Yeah I'll be no big movements anymore. Okay? Oh my god, that's bright. The thing is me like my heart beating is moving my eye Off I'm gonna set the frame rate back to a thousand and then I turn the lights off in here for a bit Whoa That is talk. You know, I've got like floaties now Louise yeah Telling me laughs. Um move. Are you ready? Yeah. Oh God I can't I've got absolutely doughnut in my eye now like all I can see is a huge fat pink and blue doughnut. Oh It's completely blue now Like it's just got this blue ring in my vision. Uh, it's really weird Did I think it was it? Alright look at it? I Think I've ever seen an eye. So open that close Oh that's minging I'm weird Muscles haven't started moving it. Although they go that's closing. See that. Yeah Look at the moisture on my eyeball That is mental, so the focus has changed slightly I decided you know Maybe turn the light little less bright I could do it less bright and I can maybe half the framerate Hmm there 500. Yeah, I think that might be a good idea The thing is my heart beats like moving me you making me laugh is making me like move a bunch. Well, this is an amazing me if you can over there. We're on the closest I can be - oh Good -oh- Flip neck, right? This is what's happening. Okay First of all, there's like I can hold it there for ages for a start. There's Immediately like just a flash of just pure brightness Yeah and then it slowly turns into a doughnut like the doughnut is originally like this and then it becomes like a doughnut with a bigger hole in the middle because my eyes constricting and then less of it in I can see more detail of the light if you know, I mean Wow I'm so weird So there's actually a small delay, I wonder how we could probably count that delayed by the friends and you see all these craters Yeah, they're actually really soft and fibrous like when your eye is completely dilated Ah, they change shape those holes on the outside of my eye was so much fatter and bigger now, they're like tall Oh, yeah, weird it like drags the entire pattern and you can actually see them layers But you can very clearly here see what is on top. And what is underneath of your iris So weird and like my iris isn't perfectly circular see there's like little bits on the outside like coming around Oh, it's true. It's crazy to think that every single thing you have ever seen Was through that hole It's the way behalf of it. This is the closer of them. This is the closest to the window to the soul You could possibly be you're basically trying to look into my soul here I reckon I can do this one thing where I like move my iris really like quickly from side to side Oh you like shake your eyes? Yeah, like shake my eyeball slightly. Yeah like that. Oh, You went like cross-eyed. I can't do it quite as big as that, but I think cause we're so close You should be able to see a bit of shaking and when I was filming my eye and I was moving my around I could see this or because the iris is a Muscle and there's liquid it was like jostling. So wonder if when your eye vibrates would be like like slushie almost weird. Yeah We'll find out. All right How's it yeah, oh yeah what's doing it you're there like Oh, I'm like salsa dancing what I I didn't no idea it was that liquidy God do you see that? So those areas of your eye where there's kind of almost like craters. Yeah, they're loose I didn't know that they're like they always have their own eyelids. They do that look how that the fibers are like closing in and like moving about Do you see that? It looks like just sort of like a fan, but you're gonna know I So gelatinous, it's like jelly It's almost like a weave like it's all like each one is string. I think that's what it is That's the best way to describe it Look at jiggles a spaghetti looks like overcooked spaghetti moving around Well, that was some graphic looking foot One donut that's about right? Yeah I'll tell you what though I don't think I can ever in the future use iris recognition software because everyone has the perfect image of my eyeball Yeah, exactly and iris Ken does not what you've got the least secure iris now. Yeah, and I've already felt my eye So we're both toast. Oh, well, hopefully you enjoyed that video or you were grossed out by it I feel like either one is a victory for us. Please. Feel free to subscribe to the slow mo guys and a check back You know a little bit for the next video where hopefully down I'll be able to see you again Your life's in my hands now gonna drive home with you in the car Another roundabout
B1 iris eyeball eye doughnut lens macro Macro Pupil Constricting in Slow Motion - The Slow Mo Guys 3 0 林宜悉 posted on 2020/03/21 More Share Save Report Video vocabulary