The BEST video on Depth Of Field !!!!!!

hello viewers and welcome back thank you for liking this video this is one of the best video on aperture in youtube that you can find and i appreciate that you like it and we have so many requests to do this title depth of field if you have to watch one video and fully understand about depth of field this is the video viewers some good news before we start today's video head on to my e-learning website now because we're celebrating and undergoing the 11 11 promo everything from all the e-learning titles to the premium courses the all-access and including the online process program 50 of hurry because this promo is a limited time offer what is depth of field take a look at this photo here punch in a little bit and you see that this is the sharpest point in the whole photo and this one right here just about chopped and after that everything else is not that sharp anymore so if you take a look at the photo sideways this is how it looks like from here to here is sharp and anything else and everything else apart from this range is blurry this range here is depth of field okay so great you must be thinking like okay that's the field that is so easy to understand so what's the big deal well it's bigger than that that of feel has a complex formula is very difficult to calculate in this experience and it's governed by a lot of parameters and not only that it's totally useful in compositional and storytelling of photography we're going to go through all this in detail in this episode here so first off that ball feel only happens at the depth of the photo which means that from here to here going into the photo it doesn't happen on the z-axis and it doesn't happen on the x-axis it only happens on the y-axis moving into the photo and hence why it's called the depth so you never get depth of field looking like this you never get depth of field on the same plane in other words you cannot have a guy looking sharp and just right next to him the girl looking blur will never happen why do we need depth of field you probably think that depth or feel is more of an annoyance a bug than a feature well it's actually a very useful tool in photography because depth of field does three things in photography number one the distance you have your subject here at the back that's the location you separate the location from the subject giving the impression to the viewer that hey this photo is about her not so much about the background but anyway this is where she is so a background needs to be bullet because unless you're shooting a landscape photo and that brings us to the second use of depth of field one of my favorite and most powerful feature of depth of field inclusion and exclusion take a look at this photo there's a riot at the front but these are the people that are causing the right not this guy though he's just a passerby that was intrigued like how humans can be so violent and he was in an attempt to cross the street so notice that he was blurry he was excluded if this photo were to land in the police station he probably get away scot-free because he's not part of it exclusion this group of people here are included so depth of field is a useful tool as a photographer that you can use to tell your viewers that hey this is one group part of the subject that is not part of the group and that brings us to the third use of the depth of field backstory setting and establishment and the premise of your whole photo and take a look at this photo taken by pulitzer winner danish siriki one of the most admired photographer from india sadly sidiki died shooting photos more on danny city key in premium courses where we celebrate great photos and great photographers look at this photo this woman is a rohingya refugee and she managed to escape a hardship in the new land in the new country out of gratefulness and bliss she bowed down and touched the land and that at the back was the boat she arrived in without the boat you won't even know she is a refugee you won't even know how she arrived in this new land this boat was the reason why she is still alive the establishment and the backstory so remember this background a great back story it tells you and sets the premise of how she can be here in that photo well you know what remove that book danny sadiki wherever you are i apologize for doing this see how that photo changed drastically and that's what i mean what depth of field can do a background that is amply blur will set a premise of any photo storytelling yeah because there's any there's nothing else in this photo it's her representing a new life and that the old life so that's what i mean by backstory setting the premise and that's what that buffy is so great at okay i want you to take a look at some of the photos that i really love the way how these photographers use step of feel to tell story this one here from sergey ponomarev an award-winning in fact he won the 2015 breaking news pulitzer prize and he won it for new york times if you look at this shot i like it because that depth of field that he used that controls the whole layer of all the refugees these people that you see on the boat here are refugees from iran iraq and afghanistan arriving at the shores of greece and these boatmen that sent them here were carrying 150 of them and the moment he turned around and go back to turkey he was arrested so what i like about this shot it was clear that he focused on these men but the depth of field made this subject at the front sharp too and it starts falling off gradually and it starts showing in fact if you look at this this is a great example of where circle of confusion in a photo starts appearing exquisite use of depth of field sometimes you show all sometimes you show a little bit less and in contrast take a look at this shot for mauricio lima this is an amazing shot that won him a pulitzer prize too these are syrian migrants waiting at the wheat field at the border of hungary there were pub wires set up there preventing them from going in and they were hoping that they get accepted now what i like about this shot back exquisite use of depth of field at the front but yuchang i noticed that the blur is slightly different i mean take a look at this shot where i shot with a normal lens you can see that the plane where it's supposed to be shot the depth of field area is supposed to be the same plane as in apparel 90 degrees plane towards the camera but this one looks a bit tilted it looks a little bit like what you get when you use a tilt shift lens you get what i'm saying yeah ugly yeah because if you look at this lady here she's supposed to be nearer to the camera she's supposed to be blurry but no this lady here this woman here is blurrier at this moment at this point in this frame the suffering is on this woman and a kid if you want to be good in storytelling know how much to blur in a photo and the next point i drew but what if everything is sharp in the photo the two closest siblings of depth of field sharpness and blurness to really harness and understand depth of field we need to understand sharpness and blurness if everything is sharp in your photo that means you have a very deep depth of field which means that from here to here is sharp and nowhere else in your photo is blur and if you're in a room that is filled with smart people it's very hard to find a dumb one so having a not so smart person will make people look exceptionally sharp and smart and here's my point you need to have something blur in your photo to bring out that sharpness and that's why the second sibling blurness and there's so many types of blur you have gaussian blur you have lens blur your motion blur you even have photographers being blurred so that is why i would like to invite you to head on to my e-learning website here where we have this course premium courses where every week we upload new lessons to premium courses this can be about camera settings compositions lighting stock photos commercial photography and the newest addition is the type of blurners how to achieve them realistically in photography so coming back to yi chong's question what happens if everything is shut then everything is important that's what you're trying to tell the viewers and you can also land your eye everywhere this works very good when it comes to a landscape photo a scenery photo where you're telling people that hey look everything is nice you want to be here nothing is excluded or speaking of nothing is excluded family photos where the background is totally not that important and you want to get every aunt and uncle you have in that photo blurring one of them is gonna offend and exclude one of them so that's it there are times where having everything sharp is totally important and that's what i teach photographers if you you know you need to be instinctively know that to change your aperture how much to blur how near to stand to know what to include and sometimes you have no brain to do that example in event photography or in a wedding where the last moment of the banquet dinner where everybody is cheering everybody so what do you do you shoot everything sharp step back use a high f value anything above f 8 is going to be high should everything sharp and then go back and decide how you can blur this and that's why our premium causes tutorial is very important the types of blurs that you can get and how to realistically use post processing to blur part of the photo that you want to exclude so how do i know my depth of field if you're a dslr user you probably see this button here just press on this button and your viewfinder will turn dark just eyeball from the front to the back and see at which point the sharpness falls off when you see this that's where the sharpness ends and that's your range of depth of field it depends on how near you stand to the subject if you're a mirrorless photographer and camera user then simple just eyeball from front to back and see at which point is no longer sharp so what affects the value of depth of field three things the first one your lens focal length when you have a lens focal length that is very short you tend to have a deeper depth of field this lens 85 millimeter is going to have a shallower depth of field and that's why it looks so great when you use it to shoot portrait but when it comes to shooting landscape that's why you use lenses which are 11 millimeter 14 millimeter so the smaller the number the deeper the depth of field so secondly the distance of the photographer to the subject the nearer you stand to your subject the blur the background is gonna be in other words the shallower the depth of field is going to be so if you have a lens that the lowest f value you can get is at 5.6 easy go nearer to the subject zoom in completely and that's how you get a blurrier background and thirdly your f value a higher f value will give you a higher range of depth of field a lower f value where all of you know this is going to be shallower and the background more blur and anything that's more far is going to be blurrier and one of the best way you can benefit from depth of field and all these three parameters shooting fashion catalog so you notice that we will use high f value f8 to f11 and this will allow the models to move in the studio so a little bit front a little bit back will not be much of a matter because that is in the range of the depth of field from here to here it's going to be sharp so that gives a more fluid and natural movement to the subject without the need to hold it really crazy post the whole time and that is why when it comes to beauty portraits it's one of the toughest to shoot because the subject is being shot so close the subject needs to hold still so simple if you want to have your subjects a little bit of freedom in the studio use your depth of field by varying these three values so how does depth of field even happen to explain this we need illustration that's you the photographer pointing a camera towards your subject which is a man with his dog behind and is holding a tennis ball for the doctor fetch now let's just remove the man and the camera and just leave it with a simple lens so that you can see this better assuming that you're focusing on the man's eye this would land exactly on your camera's focal plane and sensor here and whatever that's at the front of your subject will always land behind the focal plane and then you have the dog behind rays of light coming from the dog's face would then fall in front of the focal plane and to make this easier for you to understand this range here from here to here is where it will appear sharp to you but this area here this is blurry in fact blurry and sharp is relative and that's why camera scientists and engineers call this the circle of confusion i know this is confusing but you need to now look at the depth of field formula this is how it looks like i don't expect you to remember this but just understand that it depends on four parameters number one it depends on the f number of the lens that you use number two the distance of you as a photographer how far you stand away from the man and the dog and the tennis ball and then c the circle of confusion i don't want you to get confused at this point and then lastly your lens focal length this will determine your depth of field in formula wise so to summarize this depth of field is how your viewers perceive which part of your photos being sharp and being sharp is so confusing that's why we have a circle of confusion it's like time i'm supposed to meet you at four would you consider me late if i appear at 402 pm no no what about four zero five borderline okay 4 15. late okay you don't exactly carry them early but the point is that from 4 p.m to 4 05 in most culture except unless you are in japan when you're one minute late you're late this will appear as naughty acceptable and this is where it gets confusing the circle of confusion of lateness so in other words that's why they use this term circle of confusion is where things start to appear blur okay i know that formula made you crazy let's summarize this what are the things that i need to know that will reduce or increase my depth of field as a photographer summarizing from that formula number one the focal length of your lens if you use a 85 millimeter you're going to get a shallower depth of field compared to a 14 millimeter lens so background more blurry number two your f number using f2 would create a shallower depth of field background more blurry compared to f16 number three standing nearer to your subject would make your background more blurry hence reducing your depth of field and fourth that circular confusion thing you can kind of equate it to your sensor size think about this every photographer knows that when you have a full frame sensor the background blur is going to look nicer why is it so simple because your lens would then need to project a bigger field of view to a bigger screen which is your sensor and that's why it's looking so yummy in other words you're gonna have a nicer circle of code okay i promise not to use that word on you again just blurry background when your sensor is bigger and that is why when you use a medium format camera they're gonna swear to you that wow the background is so beautifully subtly blurry nice as compared to the aps-c you know we should do a sensor size thing a video all about sensor size in another episode oh hey youtube exclusive members yi chong and i have just experimented something with the depth of field and circle of confusion with me moving towards the camera so i see you in backstage and we learn how this crazy formula and all this depth of field and circle of confusion works in real life well done viewers you have reached the end of the depth of field tutorial see i told you isn't that tough as long as you don't land yourself in that circle of confusion before we go there are two things i asked of you number one visit jonathan's sex website this is an impressive website because he made it so interactive you know what he did he shot a series of photos of his model nicole and it varied the f number and put it into an interactive app kind of thing on the website by changing the slider you can see how the f number affects depth of field and see which part is blur which part is sharp jonathan thank you that's an amazing website number two head on to my website because my website is undergoing a 11 11 promo everything in our website is 50 off from all the e-learnings to the premium courses to the all access and also our online process program this offer will not stay on there long so go now and enjoy the 50 promo i'll see you soon and i hope i get your support what happens if everything is sharp then everything is important no exclusion my favorite guy of depth of feeling photography what is the first one

Channel: Beyond Photography

Views: 9,667

Keywords: Beyond Photography, Andrew Boey, Learn photography, Best photography channel, Photography E-learning, photography tutorials, NIkon school, online photography lessons, online photography academy, Best photography school, E-Learning Courses, Online Courses, Best Photography Academy, Learn from the best, Best Photography Tutorials, Best Photography Teacher, learn Depth of field, DOF, DOF in photography, Aperture and Depth Of Field, F no and DOF, depth of field

Id: 2Dk4rjP7uPg

Length: 18min 14sec (1094 seconds)

Published: Fri Nov 12 2021