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Nairaland Forum / Science/Technology / Phones / Megapixel Count Vs Sensor/pixel Size (927 Views)
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Megapixel Count Vs Sensor/pixel Size by atheistandproud(m): 1:47pm On Jul 19, 2020 |
As most people are starting to become more tech enlightened these days, you hear them make use of the words “megapixels” to try to rate different camera abilities on different smartphones. Smartphone makers encourage this too by touting the amount of megapixels present in their camera sensors and turning a blind eye to other camera specifications. This might lead one to believe (more often than not) that megapixel counts are the “alpha and omega” when it comes to rating camera abilities. These days however, there is another school of thought that believes that camera prowess and ability should be evaluated by the size of the sensor as well as that of the pixels too. For those who may not know, a pixel is a light collecting bucket on a camera sensor. A megapixel simply means that there are a million pixels on the sensor. A camera with 12 megapixels (12MP) has 12 million pixels arranged on the camera sensor to help catch light (I have explained the process in detail here https://inquisitiveuniverse./2020/07/09/lets-talk-cameras-part-2/). A camera sensor is a photographic plate at the rear end of the camera. It holds the pixels that are used to catch light as well as the electronic circuitry to convert the light into electric signals and send them to the phone’s Image Signal Processor (ISP) for post processing (a more detailed explanation can be found here https://inquisitiveuniverse./2020/07/09/lets-talk-cameras-part-2/). The pixels that catch light also come in different sizes measured in micrometers (µm). The bigger the pixel size, the more light it can catch. THE MEGAPIXEL ARGUMENT The number of megapixels used in a camera is very important as a high number of megapixels boosts the resolution of an image and retains a lot of details from the scene, especially when zoomed in. It also provides a very quick and easy way to rate cameras and this is very true when you look at 1MP cameras against 5MP cameras or 8MP cameras against 12MP cameras. As soon as you go over 12MP cameras and start heading towards 48MP and 64MP, things start to get a little mixed up as pixel binning gets thrown into the mix. THE PIXEL/SENSOR SIZE ARGUMENT The sizes of the pixels and sensor used in building in a camera is rarely talked about. In fact, a lot of people barely even know that they exist but they are very vital to determine camera performance. The size of the sensor used affects the type (size) of pixels to be used as well as how many pixels that a manufacturer can pack into the sensor. A big sensor means that they can pack bigger pixels into the sensor. Even if they choose not to use bigger pixels, they can pack a lot more smaller pixels into the much bigger sensor. Small pixels (0.8µm) do okay in bright daylight but perform horribly at lowlight conditions. Bigger pixels work excellently in daylight and they do very well in the dark as they can collect a lot more light and render a better image than small pixels. THE HEAD TO HEAD Megapixels counts are only good for image resolution and for packing a lot of details. The size of the sensor on which they are packed on is much more important. A camera with a high megapixel count (48MP) made up of small 0.8µm pixels can be totally destroyed by a 12MP camera with 1.4µm (or even 2.4µm) sized pixels. Today, there are so many companies touting cameras with a high number of megapixels all over the place, so it is important to note that all 48MP cameras are not equal. Some 48MP cameras with very small sensors and even smaller pixels would give you terrible shots, while some 12MP cameras will give you flagship grade performance. Both Apple and Google use 12MP cameras and their cameras give out better shots than most 48Mp cameras in the market today. WHAT MAKES UP A GOOD CAMERA? Well a good camera should have good hardware (well sized image sensor and pixels as well as a good megapixel count). It should also have a good software to process those photos. Software in photography has started to take a more pivotal role these days. If a company fails to post their hardware specs or release them to reviewers beyond the usual megapixel count, then they are practising false advertising and you probably should not buy from them. Image 1 The sensor on the left has 12 boxes, each box representing a thousand pixels so it is a 12MP camera. The one on the right has 48 boxes representing 48MP. The 12MP camera on the left has the bigger pixels and sensor and will take better photos both day and night, completely outperforming the smaller 48MP. The smaller 48MP sensor would combine 4pixels (or boxes) together so as to get a wider surface area and boost performance but, that would effectively reduce it’s resolution back down to 12MP. https://inquisitiveuniverse./2020/07/19/megapixel-count-vs-pixel-and-sensor-size/ 9 Likes 1 Share
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Re: Megapixel Count Vs Sensor/pixel Size by Nobody: 1:50pm On Jul 19, 2020 |
infinix and tecno blind bats will never agree 4 Likes |
Re: Megapixel Count Vs Sensor/pixel Size by atheistandproud(m): 1:53pm On Jul 19, 2020 |
@Effulgent Stew don ready. |
Re: Megapixel Count Vs Sensor/pixel Size by reaky(m): 1:53pm On Jul 19, 2020 |
Make i book space first Coming back later to read |
Re: Megapixel Count Vs Sensor/pixel Size by atheistandproud(m): 1:53pm On Jul 19, 2020 |
Atiku: I no dey house oh |
Re: Megapixel Count Vs Sensor/pixel Size by Karex81(m): 1:56pm On Jul 19, 2020 |
Transsion marketers will not like this, op you are doing well. 3 Likes |
Re: Megapixel Count Vs Sensor/pixel Size by atheistandproud(m): 1:59pm On Jul 19, 2020 |
Karex81: I'm always here to serve boss |
Re: Megapixel Count Vs Sensor/pixel Size by PapaNnamdi: 2:03pm On Jul 19, 2020 |
I no even understand anything,
just gimme umidigi make I de go 1 Like |
Re: Megapixel Count Vs Sensor/pixel Size by IamDavid(m): 2:05pm On Jul 19, 2020 |
Put this on a billboard. Phone users need to know that it's not always about big numbers. Bigger isn't always better. It's more about the quality of these components. Wonder why apple typically keeps their ram capacities unknown? Because you'll not be impressed when you hear it's 1 or 2gb but trust me, it works better than most 4gb in many Android phones. I can even see an add on this same page, 96 megapixel camera from Transsions... I know its probably thrash. Transsions be like "Spark 5, 5 cameras, more angles". Let's make an analogy, if you're celebrating a birthday and you call a photographer, will he bring 5 cameras? (and more angles ). But you're sure of the quality you'll get from his single camera. Let's take this same energy to our mobile phones. Megapixel counts and no of cameras matter, but the quality matters most. Good one op 1 Like |
Re: Megapixel Count Vs Sensor/pixel Size by atheistandproud(m): 2:10pm On Jul 19, 2020 |
IamDavid: Big numbers are good for marketing tho |
Re: Megapixel Count Vs Sensor/pixel Size by Effulgent(m): 2:14pm On Jul 19, 2020 |
atheistandproud:let use my hand to lick it before e Cold thanks for keeping me updated 1 Like |
Re: Megapixel Count Vs Sensor/pixel Size by IamDavid(m): 2:21pm On Jul 19, 2020 |
atheistandproud:Very true cos it will decieve many, but some of us have tough minds. When I see an add "108 MP camera" on a 70k phone I'll be like it's probably thrash, they've spent most of the money on megapixel count. 1 Like |
Re: Megapixel Count Vs Sensor/pixel Size by SUPERPACK: 3:42pm On Jul 19, 2020 |
Even Xiaomi that is selling phone with 45 megapixel is also guilty of this. Even a 12 megapixel iphone camera can beat it. Chinese criminals. |
Re: Megapixel Count Vs Sensor/pixel Size by atheistandproud(m): 3:47pm On Jul 19, 2020 |
SUPERPACK: Actually blame Sony and Samsung. They're the ones who made pixel binning popular. The rest people just buy from them and put in their phones. And yes, Xiaomi is guilty of it too as is Samsung. 3 Likes |
Re: Megapixel Count Vs Sensor/pixel Size by Adasun(m): 4:30pm On Jul 19, 2020 |
Thank u |
Re: Megapixel Count Vs Sensor/pixel Size by atheistandproud(m): 4:39pm On Jul 19, 2020 |
Adasun: You're welcome |
Re: Megapixel Count Vs Sensor/pixel Size by frubben(m): 6:29pm On Jul 19, 2020 |
I wonder why this is not on front page. If na "my girlfriend leave me i need help " e go enter front page. Mtweeeee 64 MP lwkmd i no call anybody name ooooo Nice one . @athiestandproud can u help me break down elephone e10 and umidigo a7 pro camera Cos elephone get 48mp and umidigi carry 16mp Waiting for your reply 1 Like |
Re: Megapixel Count Vs Sensor/pixel Size by Karex81(m): 6:41pm On Jul 19, 2020 |
atheistandproud:see as you finish that guy . Even iPhone buys camera sensors from sony |
Re: Megapixel Count Vs Sensor/pixel Size by atheistandproud(m): 7:59pm On Jul 19, 2020 |
Karex81: I taya oh |
Re: Megapixel Count Vs Sensor/pixel Size by KrazyDave16(m): 9:42pm On Jul 19, 2020 |
So this means 48MP lens - irrespective of the user not activating the 48MP mode - pixel size will remain the same... Wow. |
Re: Megapixel Count Vs Sensor/pixel Size by atheistandproud(m): 10:26pm On Jul 19, 2020 |
KrazyDave16: I don't really get what you mean... But most 48mp are binned in a 2 by 2 (quad Bayer system). These sensors use a small 0.8µm pixels. Even though it outputs a 12mp resolution photo. There's still 48 million pixels on the sensor. It doesn't change. 1 Like |
Re: Megapixel Count Vs Sensor/pixel Size by KrazyDave16(m): 10:36pm On Jul 19, 2020 |
atheistandproud:It was about the 0.8 pixel value changing if the 48mp mode is not in use. You just confirmed it doesn't. 1 Like |
Re: Megapixel Count Vs Sensor/pixel Size by atheistandproud(m): 10:51pm On Jul 19, 2020 |
KrazyDave16: Physically, it doesn't change. Remains the same 1 Like |
Re: Megapixel Count Vs Sensor/pixel Size by skywalker240(m): 2:40pm On Jul 20, 2020 |
Atiku:Please don't leave me
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Re: Megapixel Count Vs Sensor/pixel Size by skywalker240(m): 2:40pm On Jul 20, 2020 |
Atiku:Please don't leave me are you serious
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Re: Megapixel Count Vs Sensor/pixel Size by skywalker240(m): 2:52pm On Jul 20, 2020 |
frubben:If you no wan call any names, me i must call names oo E start with CAM** E end with PREMIER 1 Like
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Re: Megapixel Count Vs Sensor/pixel Size by opera1(m): 3:07pm On Jul 20, 2020 |
skywalker240:MAY GOD FORGIVE U OO. |
Re: Megapixel Count Vs Sensor/pixel Size by skywalker240(m): 3:16pm On Jul 20, 2020 |
opera1:May Nigerians forgive Tecno too.
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Re: Megapixel Count Vs Sensor/pixel Size by frubben(m): 8:00pm On Jul 20, 2020 |
skywalker240:if i say C you say A another man day M omo na u sabi 2 Likes |
Re: Megapixel Count Vs Sensor/pixel Size by Blastedholligan: 8:25pm On Jul 20, 2020 |
Nice one. Funny thing was I was having this argument with my friend today. I also had to enlighten him on how Airtel can use one code to make recharge and buy data from any bank in Nigeria. Madt o! *444# is the code. |
Re: Megapixel Count Vs Sensor/pixel Size by skywalker240(m): 10:04pm On Jul 20, 2020 |
frubben:If I say CAM, you say MON, another man say prem omo na you Sabi. 1 Like |
Re: Megapixel Count Vs Sensor/pixel Size by atheistandproud(m): 12:34am On Jul 21, 2020 |
frubben: I'll look it up boss. Elephone E10 Vs Umidigi A7 Pro |
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