I think Burnie really put it the best way when he was talking about Gavin, and this isn't his exact quote, but something like this. "Gavin is on of the cleverest people I know, and unless it sounds completely f*#&ing stupid, then I believe him, especially if its anything remotely to do with cameras."
LewisB776 I actually saw one of the slowmo guys videos getting played in a science class in my high school when I was walking down the hallway to use the bathroom.
6:42 OMG. I'm stunned. Been a professional photographer for over 50 years. Held a photojournalist press pass for many moons. Worked for AP and UPI back in the 70's. Thought I knew my profession better than most. And yet, never realized the how f/stops were arranged. Sheesh. I feel stupid. How the hell did I miss this for so many decades? Thanks, Gavin, for teaching this old lenshound a new trick! ("Lenshound", that confirms how old I am!)
They’re the same person, but Gavin’s a camera man, he’s gotta know his stuff about cameras as he’s had multiple jobs involving them, he also has a good general knowledge but has trouble describing and putting his thoughts into words, and when he’s in environments where he’s not confident or just not performing well he turns into the Gavin we know and love at Achievement Hunter.
My photography course used his earlier vid Gav mentioned to discuss all of this, but this is so much more in depth. I had to share it with the prof I took the class with so many semesters ago, it just felt right. Gav knows his shit, and explains it at a perfect lay-level. Only one explanation needed from Gav, one go-through. It's the sign of a true professional and a proper instructor.
Gavin: "What if your legs didn't know they were legs?" Also Gavin: "If I want to reduce the motion blur in the image, I have to reduce the shutter angle but if I want any depth, I have to lower the aperture.."
I love watching Gavin talk shop. Just goes to show how much work is put into these videos. I'm looking forward to the video on navigating electricity flicker, because this is a common problem for those of us that use webcams indoors.
That's more a problem with the interaction of the standard video framerates and the frequency of the electricity supply -- fluorescent lights/CRT monitors flicker at the same speed as the AC current feeding them (50hz in the UK/60hz in the US; a TV for obvious reasons, and, well, IIRC fluorescents flicker at twice the mains freq, which happens to be the 180-degree shutter angle exposure, so they get out of sync quick), so you'll inevitably get the flicker on film/video at the standard 25/30fps. That's one of the uses for a 360-degree shutter, that way you get at least one flicker per frame. And if you're shooting interlaced video (for TV) I guess you're just boned, at best you'll get the light on in one half-frame and off in the next. Slowmo, you're just going to see the fluorescents/pulse-with-modulated LEDs slowly pulse no matter what, see slowmo clips from things like Top Gear of cars with LED headlights. That's why film/video productions use "hot lights" -- incandescent bulbs don't flicker, with the downside that back in the day with low-ISO film/sensors, it got really hot on stage, the guys in the monster suits in old movies could only shoot five minutes at a time, and one of the big advances in movie makeup was when they made a formula that wouldn't melt.
I think you actually get worse problems when you're recording at a different frame rate than the flicker, though. So, if you're recording video with an iPad or iPhone at their default 60 frames per second, and you have a light flickering at 50Hz, every frame is going to have a different light level due to the flicker being out of sync. Big Clive always had that problem when he was recording with an iPad--he'd always say that the flicker was far worse on the video than it actually appeared in real life.
d2factotum when did the iPad and iPhone get 60fps? Mine both still shoot in a terrible, awful, cringey pixelated mess of 720p30. And yes three adjectives were needed to describe how godawful the video quality is.
Or he would just go back to what he was doing. Which was being hired to shoot slow motion shots for various companies out there. Crazy to think he did that before becoming a major goofball like he is now for RT haha.
Gavin, have you ever thought about doing a photography masterclass or more of these sort of educational videos? I think you are really good at explaining things and would like to learn more about photography and film as well as maybe the editing process.
After seeing this video, I'm conviced more than ever that this guy is brilliant. I feel like Gavin has, and has had a very serious and complex job most of the time with filming and whatnot and when he's with AH it's the time when he can just not care, relax and be stupid, and I bet he finds it super liberating. This two facet personnality makes for great content on both sides!
"And that's important for any job, I think. You've got to be confident doing it and you've always got to be open to new techniques or adapting your style depending on what the subject is or what people need." Surprising and apt philosophical advice.
Love the way he teaches with no ego, learned a lot from this. My film school lecturers always talk with an ego and act like I'm an idiot for not knowing how things work (I came to learn, not be judged)
We just spent a week on this in my cinematography class and I still didn't really understand it, this was way easier to grasp, thank you Gavin. Please keep doing these
"If I swung an ax I'd probably put it in my shin, that's why Dan's always the one doing to AX-SHIN (action)". Idk if I'm the only one who made this association but it's right at like 14:00
Given that speed is the rate that a something travels in some specified distance, the slowest particles (as long as they move at all) have speed. I'm assuming here that you believe speed must be fast but I'm not sure. 'insert joke about velocity here'
I love watching achievement hunter Gavin being confused about everything, and then come and watch slow mo Gavin and he knows what he's talking about and I love it
I would probably pay to take a camera course taught by Gavin. His previous video that he talked about in this one is the thing that got me to understand shutter speed when I'd already taken a course in a lecture hall that just didn't click with me. Kudos, Gav; you're a brilliant teacher and I love it when you teach us about the way cameras work.
I'm not even that into this specific subject but Gavin's knowledge and enthusiasm is really infectious. I've learnt a lot from this video and actually want to know more, top work Gavvy Wavvy 👍🏼
NoLand's Man not necessarily, I remember an episode of top gear from like 10 years ago where they hit a car with lightning to test if it's safer. There are indoor facilities that can generate and control it, might not be as strong as natural but safer and easier to shoot.
NoLand's Man agreed, I've always wanted to see really high quality slow mo footage of lighting hitting a tree. Imagine seeing the sap inside boil instantaneously and explode out in millions of splinters.
It might not be that difficult. With still photography, you frame the shot, get your settings where you like them, and just take long exposures. With Slow Mo, I think it would be about the same, with the main challenges being lightning occurring where your shot is composed and DURING the capture, which sounds like it's probably a bit shorter than my usual shutter speed for lightning. I would be interested to see what Gav and Dan could do with it.
maybe they could travel to whatever that place was in venezuela where there is lightning everywhere at any time? it'd be easier to shoot because you can just point anywhere and wait for one (or i heard when the storm is extreme the lightning bolts are so dense you basically see a net of bolts everywhere you look, so they don't even need to wait) and you can get a cooler shot than doing it in an average storm
Keep this sort of content up! The hallmark of a good educator is someone who can explain complex things in simple terms and you nailed that Gav! Of-course keeping things fun and throwing in the odd clip from other videos helped keep our attention as well. So crazy to think I've been watching your content for over 5 years now!
This video is so jam-packed with useful information. Prior to this I only knew the basics of some of the settings Gavin talks about but I think I've learned more about the actual practicality and relations between those settings from this video than I ever have in the past. Thanks for making this!
RankUpGaming He told the story years ago on the RoosterTeeth podcast. He basically started helping a guy who lived in his town that shot slow mo. Not much of a story, he basically just worked along side him and learned as he did.
The stuff he talks about here is like your basic 101 into photography. Go read any beginner's or starter photography book or column or blog post or anything, and you'll learn the same exact things.
He plays Halo with Burnie Burns on the Letsplay channel and he talks about his life getting involved in Rooster teeth including his time in the film industry I think its called Game Time. One of my fav videos to go back too.
Gav, you have a fantastic, accessible way of explaining topics such as this. I learned more from this one video than the photography books I've read! I'd love more, expanded videos like these, please. 👍😊
This was incredibly helpful. I've messed with those settings on dslr cameras for videos but now I actually understand what all of them mean. Thanks Gavin!
Finally - Realtime 'Photograghy 101' lessons from someone who's passionate and also knows exactly what they're talking about technically. Fantastic teaching ability and easy learning. Well done....and please keep them coming.
I watched this whole on my phone with data. That's how good it was. Also videos like this is why I can't fully enjoy Gavin on let's play, I know he is smart hahaha
This video has helped me better understand the relationships between shutter speed, and aperture more so than any other guide or book I've read to date. Much obliged Gavin!
As soon as you started talking about Dan, I was smiling so much, just hearing the clear admiration you have for him is so nice. This video helped me to see how different and difficult both sides of the camera are! Props to you both
Having watched some of Burnie's vlogs as well as this video, I was wondering how likely it is that both Gav and Burnie will be lecturers someday at University/College as they're so articulate in their fields. Anyway, this video was awesome, more like this please :D
Agreed. I don't know if Burnie has done any guest lecturing yet but he has mentioned times where he has been a guest speaker for very important presentations so at least some people can see that they/he are knowledgeable.
My favorite part of this amazing video is the rare, on-camera display of respect. Gav and Dan are both highly competent, but good around a hell of a lot (definitely part of the fun of their videos). Dan is the butt of so many jokes that their relationship can come across as abusive if you watch enough videos. It's nice to see that Gavin really does hold his friend in such a high esteem. And yeah, that was an amazing lesson in photography and video-photography. I will be watching this video again many times.
You know what's nice? When people don't say "uh" or "um" between each sentence when explaining something. It's really nice listening to Gavin explain this shit.
Hey, I was wondering if you guys ever had the idea to film a sword fight, specifically a parry. I've heard that there is a tremendous amount of bend in the swords, so I thought it would be cool to see.
This was the greatest, most informative, easiest to understand description of shutter speed, shutter angle, aperture, etc I've ever heard. Thank you so much for this video!!!!!!
Everything about the physics of capturing images in barely 16 minutes... Dude, you're awesome. This video together the DSLR shooting boost anyone's interest in photography!
So I've worked with digital and film still photography and have had some formal training with cinema cameras. I still don't know why on still cameras it's called an aperture, but on video it's an iris. Anybody have an answer?
Robbie Carroll Well they are different things. Iris is the physical mechanism that has the hole in the centre, aperture is the size of the hole in the iris.
Great video! About the angle though, when you're using an insanely high shutter speed, does the angle still matter that much? Wouldn't you rather double your shutter speed and go to 360 degrees to gather twice as much light? In other words, isn't 2000fps@360 exposing the sensor just as long as 1000fps@180? Except with 2000fps you get twice as many frames. With 180 degrees, I feel like you're throwing away half of the potential light.
I would agree that 360 vs 180 at the same shutter speed would result in more motion blur. However, that would not be true at different speeds. With 2000fps@360 and 1000fps@180 both equate to the shutter being open for 500 nanoseconds. So the same amount of motion blur would be present either way. Just with 2000 you get twice as many frames.
Darin Gilchrist You're forgetting the part where they have to playback all the footage at 25 FPS. So having the shutter set to 360° is going to create noticable blur no matter how fast the original footage was shot.
This is really enjoyable to watch Gavin. You have a great way of explaining the mechanics in an understandable way, and a good way to demonstrate it afterwards. I learned quite a bit.
Gavin I just bought my first DSLR and although you didn't make this video to teach people about still photography, this is the video I've been coming back to for an explanation on aperture etc. You're an amazing teacher! I've taken a photography course in the past and it was just gobbledygook and I didn't retain any of this information. You really make things clear and easy to remember.
This video and the DSLR shutter speed video have literally been two of the most fascinating things I have ever watched. And they weren't even in slow motion! Love these educational insights, keep 'em coming!
Coming from someone with no previous knowledge about cameras that don’t come stock on an iPhone, I found this to be very interesting and well explained. Really nice job, Gavin. You could totally teach a whole class about camera stuff like this.
Awesome, thank you for actually both telling and show us what the degrees means in this case. I've actually wondered about that when you and Dan talked about it in other videos. Keep up the good work mates!
Amazing video. So much useful information packed into it. It's unfortunate that it has a relatively low amount of views, it deserves at least 2 million. Any who, thank you to Gavin for taking the time to make it.
There are few things I find more interesting than listening to someone talk about something they're very passionate and knowledgeable about. This video hits that nail on the head.
seen plenty of videos explaining the technical end of camera work. not a single one ever bothered to explain the shutter angle/frame rate relation like you did. props to you.
Hey Slow mo guys!! I have a very unique question for an animation that I'm working on that I'm sure you guys can answer. If you set your FPS to 50 and your shutter speed to 1/2000 of a second. That means that your sensor is exposed for only 1/2000 of a second, 50 times a second. Meaning that from the top row being read to the bottom row, it takes 1/2000ths of a second. So there is tons of time where the sensor will not be exposed right. BUT does the sensor space out the unexposed time over each row OR at the end of each frame.
I love all of your videos Gavin, but this is by far the most information I have ever gotten about cameras. I am very glad you started this second channel just for this type of info. Look forward to seeing more.
Dude, your DSLR video was amazing, and this one is just as good. Even though I was already fairly familiar with the concepts in both videos, you explained everything so clearly that I found them very informative.
I'm a decent amateur still photographer, been doing that for more than a decade now. I'm pretty sure this is the clearest explanation I've ever seen for exposure in still photography, and then the video-specific stuff (which was mostly new to me) made perfect sense all the way through. Brilliant video.
The bit where the mug further away is blurred while the closer one is clear reminds me of Alien Isolation. When you bring up the motion tracker the further stuff is blurred and the tracker image is clear. But you can change it so the tracker image is blurred and the further stuff is clear. Pretty cool addition.
Please do more videos like this. I love learning about this and you're a great teacher. I plan to become a film editor and cameraman myself so stuff like this helps a lot! Thanks Gavin
Actually going to show this to my A-Level photography teacher, took about two 50 minute lessons just to get over ISO, aperture and shutter speed :') You are great Gav
