In the photography world there is this saying that digital photography actually democratized photography. If you come to really think about it something else is actually really contributed to democratizing photography A mobile So in this video we want to give you fewtips on how to improve your mobile phone photography. http://tech
But fordemonstration purposes we’re going to two-and-a-half-year-old phone. Just only toshow you that it’s not exactly the four the phone or quality or resolution thatreally matters, what matters is how you use those equipments. So onto the shoot. So, first thing first its mobile phone photography all right but it’s photographyWhich means a mobile phone should be given the same respect which you wouldgive a conventional photography camera. I have few tips for you. https://worldgraphics20.com/2020/10/28/7-infiniti-reinvents-the-gasoline-engine-technology-vc-turbo/
first let’s startwith the lens itself, because it’s a mobile phone and usually carry it aroundon your body, it’s highly likely that the glass in front of the lens could besmeared with oil, body lotion, dust etc which will affect the quality of theimage. Carry a small lens cleaning cloth something that you would use to cleanyour specs for example.
Make sure that your the glass is cleaned properly. The next one is go into the camera app and activate a three by three grid and as wego along I will explain to you how to use those grids effectively and composeyour image. Last but not the least is holding the phone itself I’ve seen lotsof people holding the phone like this with one hand and trying to take apicture with the other. Obviously you’re going to end up with a shaken image.
Irecommend that you hold the phone with both hands exactly how you would hold acamera. Pull the hands and use either your thumb or your index finger to takethe picture and that will help you shoot a sharp image. Now let’s move around andsee if we can get good subjects to shoot I just located two gentlemen sittingthere you know having their conversation after their morning walk, let me walk towards some take their permission and see if I can get some interesting shotsthere with them So I’ve asked for the permission they’vegranted me the permission to shoot.
So next thing is when I look at them veryinteresting faces, looking at the place where they are sitting in there are lot ofdistraction in the background but they have very interesting faces. If you canjust walk tell me till that wall there yeah please thank you thank you thankyou please.
So typically when you you know you pull out the camera what willyou do you take out okay he will pose for you and you take a picture correct?But of course you got the person, now, since you’ve got an interesting face thebest way is to go close fill the frame and shoot. Now, I’m going to go close, nice.Now the background is bright I think if I but make the background a little darkthis picture will improve.
So, I’m going to move them in front of this like seenow look at the light and see the difference. Wonderful. To me it is verynice The next one is use of frame within theframe. So, when I looked at it I saw this interesting black doorframe and Ithought I will frame him inside that okay can you come here please? You knowin a situation like this you would pick up your frame and pick up the camera andtake our picture but if you want to really make the picture look interestingyou can use the next direction, which is include this frame in our frame.
So sircan you come inside stand inside come forward slightly yes and face that wayso because he is framed that picture suddenly got a different dimension verynice So this is another way of capturing theimage Varun is my friend’s son and he’s a youngYouTuber.
What would you like to give to your details to our viewers? My channel’s name is LabScienceTheOne. It deals with all your questions about science. So please watch it. Okay wonderful.So he’s going to be a you know a hit on YouTube soon. So there they were playing,you know, basketball so I thought I can demonstrate the rule of third. So let mearrange.
6 Mobile Photography Tips you shoud must know
Okay Varun, can you stand there? Alright you come in squat in frontright. There are many ways I can take this shot. I can do a shot like this, Ican shoot like this, but the best way would be to keep them at that goldenpoint of the frame, so you got a nice ambiance. Wow fantastic. See the picture The next one is using the leading linesin your frame and what we do is we shoot in this step here. Nice greatattitude okay The trick is to find lines in your framearchitectural or otherwise which will lead your eye to your subject and usethose line to point towards your subject and take a shot.
So another one we’regoing to see is the role of odds. The rule says that if you’re shooting someobject, try and get then in odd numbers, 1, 3, 5 et cetera. Let’s take a look at it, soI’m going to shoot a flower Very nice. Now, let me add one more here Now you saw 1 & 2 & the rule of odd saysthe third one will make it very interesting. So, the odd numbers will makea better picture than the even numbers Yeah and I agreeGreat We will see one more before we wind upit’s about symmetry.
We as human beings love symmetry, we knowingly orunknowingly enjoy and appreciate symmetry. There is something, happens Ithink it’s culturally ingrained in your head to appreciate symmetry. Now if youconsciously bring in symmetry in your shot that shot is likely to look better.Let’s see how.
Now this area, nice greenery but I can also see nicesymmetry roared the line of the you know manicured garden and the trees and thoselines and the backdrop so well if I can just take a picture like this and ofcourse I got a picture but if I slightly fine-tune and use the grid lines in thecamera viewfinder and align the lines perfectly you get a nice symmetry I can also take in the lines in the building.
and frame it again so I’m using multiplerolls here now I have aligned all lines everything so what’s that simple use these simple guidelines and follow it and you will be able to generate or you’ll be able totake very interesting images let’s recap if you see an object which isinteresting an object or a person or a face which is interesting.
and thebackgrounds the surroundings are distracting go close fill the frames andtake that shot look for frames or within your frame compose your subject in frontof that frame and make another interesting frame make use of thegridlines in your camera and position your subjects in that golden points andmake an interesting image keep looking for interesting lines in your framewhich will guide your eye onto your subject.
that’ll create another interesting frame rule of odds is another interestingguideline which you can put into practice to create interesting imagessymmetry is another one once you train your eye to start looking for this itwill become your second nature if you follow these guidelines while takingpictures from now on soon you will become an expert andphotography will become your second nature we would like to know if this has been useful.
digital camara sensor technology
Hello I’m Graham welcome to today’s video which is on the introduction to the series where we’re looking at modern digital technology in this series I hope to be covering off the differences between the technologies involved with sensors so that’s going to be their CCD and CMOS type but I’ll also be looking at the way fabrication obtain sensor technology has moved.
so that we can actually embed the sensors to give us contrast and face detection to drive our autofocus systems in our modern cameras however in today’s video I want to start by looking at answering a question does size matter does actually cramming any more pixels on to any given sensor size improve the image quality.
let’s begin by looking at just how many pixels we need to display our image in a modern digital world for example you might want to display your image on something like this a Kindle Fire HD which has a HD display 1260 by 768 or something like 133 dpi we also might want to look at the monitor we display.
and again in our modern technology system we have 2k screens which are 1920 by 1080 again our laptops and our PC monitors all emulate HD resolution 16:9 format we give the 1260 by 768 on 1920 by 1080 alternatively we may want to make prints and a recent survey conducted on my photo blog site suggested.
that we only now print at 6 by 4 very few people actually produce prints anymore in fact the ones that do relate homes limit them to 6 by 4 very few people now produced anything larger than 10 by 8 prints if you look at the number of pixels required to either give us a 2k display or a six by four print you’ll find it’s nowhere near something like the 18 megapixels.
that we see in modern compact digital cameras in fact in reality for a HD display of 2k size we only need 2 K pixels so that’s 2 megapixels we only need 1920 by 1080 so even if I display the image from a 22 megapixel camera to the HD screen over HDMI the camera will be winning pixels because it only needs to send 2k pixels to the display device.
it’s the same when we print print modern inkjet printers normally requires in the light 300 dots per inch to produce a very high-quality print a lot of course will depend on the viewing distance of either the print or your television the recommended viewing distance for either device is going to be one point five times the diagonal so in this case a six by four print has a diagonal of 7.25 inches.
so multiply that by one point five and the actual theoretical viewing distance is going to be about eleven inches so if I view this print from 11 inches I’ll see exactly what is meant to be seen on a six by four inch print the highest resolution and you get a beautiful image.
the same fundamental rule applies to when you’re watching a large format TV so for example if you have a 50 inch LED TV the diagonal of that x 1.5 when you look in a letter 1080p image you can miss it in something like 6 feet away from it just over 2 meters if you look at a low resolution image on that screen if you’re looking at a 720p image.
then you’ll notice pixelation at that distance and you have to move through either way and the recommended viewing distance on that size of screen for a 720p image is actually 10 feet or 3 meters if you were looking at a VGA resolution on that size of screen you’d have to set further back still to get away from pixelation it’s the same with prints you can actually print say a 16 by 20 print width nothing like 300 dpi.
if you printed it something like 90 dpi and look at it from the correct viewing distance of about 40 inches that print will appear a sharp possessives course printed on a 6 by 4 and viewed at 11 inches and it’s the same with something like these big appetizing Holdings they appear to be remarkably sharp you can actually see hairs on model shoulders.
digital camara sensor technology
and things like that but if you walk up to those displace and look at them closely you’ll find they’re made up of very large dots something like 20 or 30 dpi nothing like 300 dpi that we need for these smaller prints so the larger the print of larger the display the law the resolution it needs to be if we’re sitting at a further distance to appreciate a good quality image.
so why do we need 18 megapixels if we’re only going to produce a 2k display or 6 by 4 inch print to answer that question let me show you a setup for images that I produced with a digital camera ranging from 12 megapixels down to 2 megapixels and as we step through these images you will not notice any difference in image quality from the highest resolution of 12 to the lowest resolution of 2 megapixel.
that’s the way that the screens work we can actually use low resolution images to display on a higher resolution screen so even though you’ve got a 50-inch plasma TV Sony a 2k resolution screen so we only need 1920 by 1080 pixels to fill that screen any more than that and the actual processor within the television is actually pixel binnen it’s throwing away some information it doesn’t need it.
so even though you start off with an 18 megapixel image when your TV displays it you’re actually looking up just 2 K pixels do we need all those 18 megapixels to create an image for display on a HD device or a television screen or even do we need it for printing cut six by four well the answer is in two parts one is that we may want to crop into that image to improve our composition or may want to simulate something like a telephoto crop again if you crop into the image.
it’s simulating you zooming in with your camera when you took the first shot the answer to the first question is improve the composition before you take the shot walk up to your subject I’ll move further about get it framed exactly how you want it and then take the picture don’t rely on post process cropping to get the composition you want or don’t rely on zooming to get the composition you want change the lens to a prime lens move up to where you want to take the picture.
you’ve got the best possible image quality of get on that camera and sensor combination so in theory if we only wanted a 2k display we only need a 2k resolution camera and in fact the first digital camera that I was involved was a 1 megapixel camera the code I produced back in the early 1990s and that was capable of producing three and a half inch by five inch prints without sexual viewing parameters in fact.
the first of the professional Canon digital cameras again add something like a six megapixel image so why do we now need 18 megapixel and the answer to that of course is marketing marketing can only drive camera sales through something it can define to its customers and they can define pixels as a way to improving image resolution an image resolution doesn’t exactly just mean how sharp that print is or our clear.
it is there’s a lot of factors that go into actually the print our image resolution as we’ll discuss in the next video so in truth we don’t need anything like the 18 megapixels that would be enforced to look at these days in compact digital cameras I started by asking the question does size matter or size does matter if you want to consider dynamic range you’ll get more dynamic range.
if you add a larger photo site that’s the area of the set of the sensor which gathers the light a larger site can actually give you more of a dynamic range it can collect more of the photons that are light waves generate smaller sensors need more amplification which give you more noise and that destroys the image quality if our target device was a printer then of course we would need more pixels on the original sensor to drive the 300 dpi.
needs of our inkjet printers so as we move on towards the higher end cameras now we’re talking between 20 and 25 megapixels again it’s a marketing ploy to try and get you to buy camera based on specification rather than needs through performance I’m hopefully going to show that in the next video I’ve shot the same scene with a range of digital cameras ranging from two megapixel all the way up to 25 megapixel.
and you’ll be astounded at the quality that’s coming out from those lower pixel cameras compared to the higher ones that’s it for this video thanks very much for watching if you’re a new viewer to the channel and haven’t subscribed please consider clicking the subscribe button I also have a photographic blog site.
and again I’ll put a link to that in the description below on that blog site you’ll find all sorts of material relationship photography there’s a download section where there are some hints and tips card there’s a link to my free asset 200 books if you want to download that and if you subscribe to the newsletter then you will be entered into prize draws for example.