Macro Pupil Constricting in Slow Motion - The Slow Mo Guys

  • Опубликовано: 15 янв 2019
  • British people are not known for great eye contact, but Gav steps up his game by looking deeply into Dan's eyes... From about 2 millimeters away to find out how quickly a pupil constricts.
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    The Speed of Pupil Dilation - The Slow Mo Guys
    Filmed at 1000fps and 500fps with a Phantom Flex 4K
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Комментарии • 4 815

  • tjokyla Inc.
    tjokyla Inc. 13 часов назад

    ❤Cotton candy In water please!

  • Zac Lee
    Zac Lee 15 часов назад

    Been saving up to get the probe lens for a while

  • Skyp DooL
    Skyp DooL 23 часа назад

    Пожалуйста, добавьте русские субтитры)))

  • Adrian
    Adrian День назад

    Image stabilization unveiled! 😂

  • Roselyn Small
    Roselyn Small День назад

    That is so cool. I wonder if any optometrists are seeing this and geeking out.

    NAGA SAI День назад

    Amazing .

  • Blender Dumbass
    Blender Dumbass День назад


  • Craig Wall
    Craig Wall День назад

    "That's so gelatinous!" Best. Comment. Ever.

  • Stuff
    Stuff День назад

    Can someone answer this question for me? Why is this video 50fps instead of 60fps? Just curious. I know it doesn't affect the video's quality.

  • Mas Pras Channel
    Mas Pras Channel День назад

    How incredible god make us.

  • Jackson McKenzie
    Jackson McKenzie День назад +1

    This made my eyes watery

  • Sonatine
    Sonatine 2 дня назад

    Without a doubt one of the most amazing channels on RU-clip!

  • TheCrunchyMoose
    TheCrunchyMoose 2 дня назад


  • der rick
    der rick 2 дня назад

    superzoom human skin

  • Lainen
    Lainen 2 дня назад

    I can do that shake eye thing

  • Chakib Tsouli
    Chakib Tsouli 2 дня назад

    Now do a Lasik surgery please!

  • _Young
    _Young 3 дня назад

    I felt weird watching this i felt that something was going to happen

  • Teenage Gamer
    Teenage Gamer 4 дня назад

    Still not over Dan calling Gavin B.

  • Layout Games
    Layout Games 4 дня назад

    3:03 I don't think I ever seen an eye so open that close. xD

  • Beans&Egg
    Beans&Egg 5 дней назад

    3:06 - “Resident Evil.”

  • Akash Singh
    Akash Singh 5 дней назад

    If you see the iris in the mirror with a flashlight in comolete u will be able to see the dusty textures

    SAAD KHATTAK 6 дней назад

    Do a twitching eye macro

    TAVOR VICEROY VALDOR 6 дней назад

    Fresh out of pretty blue eyes guys?

  • rohitchaoji
    rohitchaoji 7 дней назад

    Wait, I thought vibrating eyes were an anime-exclusive thing.

  • V Lad Gaming
    V Lad Gaming 7 дней назад

    It’s amazing how God made humans and so anonymous

  • Samuel Koester
    Samuel Koester 7 дней назад

    Try different color eyes to see if they are different from each other

  • Ron Jogo
    Ron Jogo 7 дней назад

    Do a slow mo video of setting the bead of a tire with ether and fire

  • andrew murch
    andrew murch 8 дней назад

    Wouldn’t mind seeing a block of wood split open with and axe or a block splitter

  • Quinn Jorgensen
    Quinn Jorgensen 8 дней назад

    Know I'm scarred great

  • Dimas
    Dimas 9 дней назад


  • Brodie Knight
    Brodie Knight 9 дней назад

    I think those little strands ARE the muscle fibres, and they're expanding and contracting individually.

  • TreCoolResident
    TreCoolResident 10 дней назад

    Just an idea for your slo mo treatment.видео.html

  • Egg With Legg
    Egg With Legg 11 дней назад

    "How many fingers am i holding up?"
    "One donut"

  • Runehorn
    Runehorn 11 дней назад

    Well that was a thing.

  • Anthony Ouellet
    Anthony Ouellet 11 дней назад

    Bird box eyes

  • Riley Hollingshead
    Riley Hollingshead 12 дней назад

    that was mental needs to be a slow mo guys shirt

  • Robin
    Robin 12 дней назад

    Would be cooler with different eye colours !

  • просто кот
    просто кот 12 дней назад

    Такие молодые.а уже английский язык знают

  • Joshuaaaaaaaaaaa10
    Joshuaaaaaaaaaaa10 12 дней назад

    The sound Gav added to Dan's eye closing made me want to throw up

  • vikas agrawal
    vikas agrawal 12 дней назад

    You should plug headphones in his ear and play music and then see the eyes.... Very curious to see this reaction

  • Yo Boy Eldert
    Yo Boy Eldert 13 дней назад

    You know that when their pupil shrink, they mean serious business

  • Jorge Perez
    Jorge Perez 13 дней назад

    Hair waxing would be 'MENTAL'!!!!

  • Dukefazon
    Dukefazon 13 дней назад

    That eye shaking experiment was a clever thing with interesting results. Another thing you could try is to turn your head around the axis of your sight, you will find that the eye is moving in weird ways... It makes quick roll movements.

  • Alex Whitton
    Alex Whitton 14 дней назад

    So our eyes have optical image stabilization

  • ratzfert
    ratzfert 14 дней назад

    Have you ever heard of CFR Kaiser Fleischer ring it's a sign of Wilson disease.

  • Alisa Battaglia
    Alisa Battaglia 15 дней назад

    LED is damaging

  • Joelene Merritt
    Joelene Merritt 15 дней назад

    I’ve always been interested in how the Eye worked and now I’m horrified

  • Poxteria
    Poxteria 15 дней назад

    This made my eyes water

  • Jordan Ezell
    Jordan Ezell 15 дней назад

    For balloon June, can you wear a rubber scuba suit fill it with air and water separately and film the suit giggling in slow mo while the wearer dances to set the giggling in motion.

  • The android with sick coin tricks
    The android with sick coin tricks 15 дней назад

    if you think about it we're made up of things we see in the universe. Irises are are and have the colors of nebulae, pupils are black holes bc light goes in and don't come out etc.

  • Comment King
    Comment King 16 дней назад +2

    The sound of his eye shutting made me cringe so hard

  • IP
    IP 17 дней назад +1

    This leads me to our creator. Who created this. "So which of the favors of your Lord would you deny?" - Al Quraan

  • Gavin T
    Gavin T 17 дней назад

    Do it again but do you every color of eyes

  • bBrain
    bBrain 17 дней назад

    Feel free to do this every 2 weeks with someone new to see different eyes. lol amazing footage

  • Mason Stuart
    Mason Stuart 17 дней назад

    Yall should do the water challenge in the cold in slo mo

  • Alexandra Müller
    Alexandra Müller 17 дней назад +1

    Please make a high framerate video of grass growing. I'd really like to see it and think a lot of other people will like it as well.

  • neoria
    neoria 17 дней назад

    super cool, but i feel like this is disgusting

  • Snow Flake
    Snow Flake 17 дней назад

    Your pupil grows up to 55%
    When you see something you love

  • Jon Samuels
    Jon Samuels 18 дней назад

    Regardless whatever name u assign, I can’t believe that people still think, as complicated as a plant, animal or human is, that we can’t just be “evolution”/ “a cosmic accident”

  • Travis Bartels
    Travis Bartels 18 дней назад

    This video caused me to contemplate life and how crazy it is to be a living being... I got to lay off the reefer.

  • Sean Kratovil-Lavelle
    Sean Kratovil-Lavelle 18 дней назад

    The camera looks like a .50 cal.

  • Mostly Confused
    Mostly Confused 19 дней назад

    I can only imagine how an Iris as multi-colored as mine would look

  • Nick Pallatt
    Nick Pallatt 19 дней назад

    that lens looks like a Darlek eye-stalk

  • Sage Petrich
    Sage Petrich 19 дней назад

    It’d be awesome if you guys could do this same concept but trying it stoned and trying it drunk and than compare reaction times would be awesome!

  • REDD
    REDD 19 дней назад

    3:17 , WATCH 3:37!!!!!!!

  • logan lobrutto
    logan lobrutto 19 дней назад

    So I was looking at my cats eyes and I was wondering if u guys can possibly try to do it with a cat I know this may be hard considering u have to hold the cats head still

  • Campsters2803
    Campsters2803 19 дней назад

    This made the news in Chicago land

  • Psyco6
    Psyco6 19 дней назад

    That sklorch sound of Dans eye was gross

  • Wendy Tully
    Wendy Tully 20 дней назад

    That was fantastic guys!

  • Steven Merrell
    Steven Merrell 20 дней назад

    I hope Dan's vision isn't hurt from this haha.

  • BOYD1981
    BOYD1981 20 дней назад

    So is Dan a Replicant?

  • AvatardShwag
    AvatardShwag 20 дней назад

    God the crunching sound when you shut your eye was so visceral

  • Dihler
    Dihler 20 дней назад

    iris might be insecure but you still have retinal scans RIGHT?

  • freakylilg
    freakylilg 21 день назад

    Since this is one of the stupidest channels I've seen could you do a slow mo video of me clicking not interested? Thanks

  • Movie scene
    Movie scene 21 день назад

    so beautiful❤️

  • Carrie Cheaung
    Carrie Cheaung 22 дня назад

    Saw that you may be flagged and demonitzed for what i saw

  • Anthony Scott
    Anthony Scott 22 дня назад

    Doublea_edits on insta! Trying to grow my page for everyone to see💯
    Check it out and let me know what y’all think!!

  • Ace Vape Reviews
    Ace Vape Reviews 22 дня назад

    Who else is high af & watching this

  • Briana Lamb
    Briana Lamb 22 дня назад

    I have a phobia/sensitivity to eye stuff (like gore etc) but this is super neat

  • Cauffey C.
    Cauffey C. 22 дня назад

    ✔ Thank you

  • Frank Barone
    Frank Barone 22 дня назад

    Poor Gav, I've seen him burned, flattened, broken, slapped, punched, soaked, painted, blown up, and now half blinded. Truly my hero of science. Give a thumbs up if you feel the same.

  • Primo Bud
    Primo Bud 22 дня назад

    Eyes of a late-bloomer

  • Robert Abdon-Baker
    Robert Abdon-Baker 23 дня назад

    Absolutely captivating. Thanks for sharing. It's truly an amazing process and named you appreciate the smallest of functions and our bodies.

  • XinLevii
    XinLevii 23 дня назад

    tell hannah stocking to come over and flex her pupil

  • Alex Wright
    Alex Wright 24 дня назад


  • Dicky Madya
    Dicky Madya 24 дня назад

    This is like phineas and ferb😂

  • Алексей Корзников
    Алексей Корзников 24 дня назад


  • Folarin Osibodu
    Folarin Osibodu 24 дня назад

    High Schools and Universities are going to be using this video for Biology classes. Well done boys!

  • Get Schwifty
    Get Schwifty 24 дня назад +1

    Dan looking through the camera at his own eye could have opened up a wormhole to a paradox, I guess we are all lucky it didn't.....Or did it???

  • Saidul Islam
    Saidul Islam 24 дня назад


  • xxMaro92xx
    xxMaro92xx 24 дня назад

    I thought eyes were beautiful :(

  • carterasics
    carterasics 25 дней назад +1

    Where's the video Gavin mentioned of his eye?

    xXPORTALXx 25 дней назад

    Eye Sphincter Exposed

  • Miss Zakaya
    Miss Zakaya 25 дней назад


  • Laurie E
    Laurie E 25 дней назад

    For Balloon June, Dan can put on a rubber suit. You can fill it up with air and water. Dan will do a funny dance wile Gavin is filming the suit giggling. The water and air can be done separately.

  • slothfulcobra
    slothfulcobra 25 дней назад

    Gavin put such a gross sound effect onto Dan's eye

  • John Kunau
    John Kunau 25 дней назад

    close up of a beard hair being ripped out

  • Billy DeAndre
    Billy DeAndre 25 дней назад

    3:40 CRINGE

  • Phoenix
    Phoenix 25 дней назад

    This video is awesome

  • ping pong
    ping pong 25 дней назад

    they made a sentry gun