Questions tagged [megapixels]

A megapixel (MP or Mpx) is one million pixels, and is a term used not only for the number of pixels in an image, but to express the number of image sensor elements of digital cameras or the number of display elements of digital displays.

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Sensor resolution and ISO performance [duplicate]

I keep hearing that less megapixels = better ISO performance, because larger pixels capture more light Suppose I shot something with a 4MP sensor and then downscale it to 1MP (4-to-1 pixel binning?)....
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Sensor size and pixels amount impact on image quality

Digital cameras have two characteristics: sensor size and pixels amount (in MP). I know the bigger sensor is and the more pixels amount is the better for the final image quality. But what ...
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Canon EOS R or R5 with EF-S lens

Next month, I will buy a canon EOS R5 for concert photography. I will be short on money for some months or even a whole year because of this investment. I have a lot of EF-S lenses and some EF lenses ...
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Does higher MP magnify the subject?

Sorry for a simple (or even wrong) question as I am new in this area. Given the same setting, same distance, does a higher MP camera magnify the subject or its the same? If it magnify the subject, how ...
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What digital camera resolution do I need to make a “zoomed-in” image on a website?

Sorry for my English...I don't have much experience with digital cameras. Right now. I'm building a Website and I'm creating a zoomed-in image like this, where mousing over a smaller image displays a ...
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Do more megapixels mean sharper images?

Do more megapixels mean sharper images? Would a 24 MP camera produce a sharper image than an 18 MP one (given the same lens, settings and scene)?
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Calculating the sensor size or pixel pitch of the Logitech BRIO 4K Webcam? [duplicate]

I have a Logitech BRIO webcam and want to try and calculate some of its physical dimensions like the sensor size or the physical size of each pixel. Unable to find any info on the official site, I ...
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How can I force my 48Mpix Android camera phone to save images at full resolution?

I have a Mi A3 phone camera. This has a 48Mpix sensor, but I am disappointed in the detail captured compared to, for example, a Sony phone with a 12Mpix sensor. Now what I notice from image ...
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Megapixel number - how many sub pixels? [duplicate]

I read conflicting information about the megapixel - subpixel relationship when it comes to sensors in digital cameras. I read that megapixel is number of sub pixels and I also read megapixel is ...
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Does the bigger pixel area of the Fujifilm XT-10 make it a better choice than the XT-100?

I'm not a professional photographer, I take pictures only as a hobby currently owing a Nikon D3200 with 35mm 1.4 and the kit lens so nothing fancy. I want to buy myself a mirrorless camera, and I'm ...
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Does the pixel count of the image sensor equate to the number of pixels of the image? [duplicate]

The Canon EOS 5D Mark IV has a 30.4 megapixel sensor. Does that mean that it can produce ~30 megapixel images?
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What does “12MP + 12MP Camera” mean in the specs of a mobile phone?

I have seen some mobile phone specifications that mention "12MP + 12MP Camera", such as these specs for a Samsung Note 8: 12MP + 12MP Camera 8MP Front Camera 6.3" Display 64 GB Memory 6 GB Ram 2.3 + ...
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Why 1 megapixel is always 1024×1024?

A CCD can be square one or rectangular. And its size is represented by M×N. So for 1 megapixel there are 1024×1024 pixels. If it's square or rectangular it will be some multiple of this number. I want ...
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Megapixels at 100mm and 200mm

If I take a photo at 100mm that fills the frame and take the same photo at 200mm will each photo have the same megapixels?
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Size of printed photo [duplicate]

I have a nikon d3100 , A friend of mine needs a headshot for a billboard.I need to know if my camera can take a pic big enough (mp) I do have a 50mm lens I can use and plan to use a tripod and plan on ...
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Can the differences of a 18MP and 24MP camera be spotted? [duplicate]

Can the differences of an 18MP and 24MP camera be spotted? I have a 500d, old, but still decent for the use I give to it...
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Would extra mega pixels be worth to upgrade from a 24 MP full frame?

I have heard that extreme high resolution is not always a good thing specially when it comes to low-light performance. On the other hand, since the size of the image gets larger, it may need higher ...
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How many megapixels is a 1000 pixel image?

I am asked to set some photos to 1000 pixel in order to make them smaller using the Irfan View program, but the program only accepts in megapixels. So, how many megapixels is 1000 pixel??
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Why does a more expensive camera have fewer pixels?

I compared the specs of some cameras. The Canon EOS 5DS and the EOS-1D X MARK II each has a full-frame sensor. The second is more expensive. Their pixel counts are 8868 x 5792 and 5472 x 3648. Nikon ...
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Is there a program that could analyze the “real” resolution of an image?

Let's take image A: 2560*1920 pixel image in perfect focus. Sharp as a razor. That's 5 Mpix. Let's take image B: image A resized to 5120*3840. It's now a 20 Mpix file, but there's no new data in the ...
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How high resolution can a picture be before the human eye stops caring?

I found an article discussing a collective that sells ludicrously high resolution panoramas, at least one of which is comprised of over 1000 images with a resolution of 7 gigapixels. Other than ...
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Which is correct, “resolution is megapixels” or “resolution has megapixels”?

A colleague and I were having a discussion about which of these is correct: "This resolution is 15 megapixels" or "This resolution has 15 megapixels" What it comes down to is our difference in ...
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Finding required megapixels

Is there anyway to find out how many megapixels would be required to get a level of detail on an object of a certain size? I'm wanting to clearly veiw lettering that is about 1ft*5ft that s on an ...
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More pixels or larger pixels? (the case of A7S II and A7R II) [duplicate]

The Sony A7r II has 42.4 (effective) Megapixels with a pixel area of 20.33µm2; and the Sony A7s II has 12.2 (effective) Megapixels with a pixel area of 70.55µm2. (both are FF camera's) That is, ...
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How can a camera be both 12MP and 1080p, when 1920x1080 is just 2,073,600?

In the specs of a forthcoming smartphone camera (it was this one, just for the record), the camera is described as "12MP, 1080p". But this doesn't make much sense. If the camera is 1080p, i.e. ...
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RAW files store 3 colors per pixel, or only one?

Ken Rockwell says that camera makers consider the individual R/G/B sensors when they talk about megapixels. So the image below would be a 6x6 pixel camera, not 3x3 as you would imagine. If that's ...
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Why are there two different megapixel counts listed for still images from the same camcorder?

This page about the Sony CX405 camcorder has mentions two different megapixel counts. At the top, 'Approx. 1.71 MP (4:3)' is mentioned as its effective pixel count for still images. But, under '...
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Why does an X megapixel sensor produce X MB of data (in image files)?

Suppose I have 1 mega pixel sensor, it means I have 1*10^6 (1 mega) pixels. If and only if each pixel represent the density of his color in 8 bit depth, so 8 bit = 1 byte, means each pixel is 1 byte ...
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How to submit a picture with 12mp and 300dpi to a contest? [duplicate]

I was wondering how can I make an image stay 12mp and 300dpi. I want to participate in a contest about street photography but their requirements are that the image must be 12mp and 300dpi. I'm new to ...
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Megapixels: Do they matter that much? [duplicate]

Hi I am looking at buying a used Canon 5d Mk1. I currently have a Canon 50d I know there is a megapixel difference and I need some advice on if I should upgrade to the 5d mk1 or stick with the 50d? ...
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How to calculate digital photo precision based on camera specification?

I'm doing a project which involves analyzing an object's width from a photo with given precision of about 0.1 mm. I am to the point where I have to choose which camera to buy in order to obtain the ...
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What does lens resolution expressed in megapixels mean? [duplicate]

In this review of the Nikon D3300 w/ 18-55mm f/3.5-5.6G, Tony Northrup says that because the kit lens of Nikon D3300 is 9 mega pixel, you won't use all 24 mega pixel provided by the sensor. What is ...
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When should ¹/EFL become ¹/(2 × EFL) to avoid camera shake

Where is the boundary when I should set my shutter speed to ¹ / (2 × EFL) instead of ¹ / EFL to avoid camera shake? (EFL = Equivalent 35mm Focal Length). Let's assume the lens has no image ...
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Optimal DPI Setting in Olympus OMD EM5 mii? [duplicate]

I had been using the default 350 dpi, but the resulting files are too small to sell to most stock photography sites online. For a standard print at 300dpi, they are great. A bit low for my metal art, ...
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How can cameras have the same number of megapixels even when the sensor size differs? [duplicate]

The image resolution for the respective megapixels remains the same whether the camera is of medium format or full frame or APS-C or even mobile phones. However the sensor sizes differ in these ...
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How can I automatically downsize images which have more pixels than needed for the actual resolution? [closed]

Many factors affect the true resolution of an image — the actual detail resolvable — including lens quality, sensor size and technology, noise and noise reduction, motion blur and camera technique, ...
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If I set my camera to lower resolution, does that mean more sensor area per image pixel?

My camera is the Nikon D3200 and the specs state that it has a Sensor Pixel Area of 14.85µm2 @ 24MP. When i set my camera to JPEG (fine), I have the ability to set the picture size. Would setting it ...
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What does a megapixel designation on a lens actually mean?

I know that in a CMOS sensor the megapixels give you an idea of how many pixels are actually there to capture the light. In terms of a lens however, I cannot find any relation between the megapixels ...
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Good Photographs with Moto G2 Camera [closed]

I have got a MOTO G2 Mobile with 8MP front camera, usually i get best shot from my phone but is there any way so that i can capture best pictures with a mobile camera everytime?
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effective 12 megapixel in Nikon kit lens

I have nikon d3300. it have 24.2 mega pixel sensor but some where i read that kit lens have only 12 mega pixel effective but the actual resolution of image is 24MP. My question: 1.what is blocking ...
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What is the maximum printing size for 12 Megapixels camera [duplicate]

The recommendation for printing images seems to be they should be printed at 300 dpi, so if I have a 12 Megapixel images in 4:3 format that would limit me to 12.5" x 10". My question is if I have a ...
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Why would a more expensive camera have lower megapixels?

Recently, I was on the Panasonic website and came across this camera. When looking at it I noticed it had 12.1 megapixels, which is really low compared to cheaper cameras. So why is the megapixels so ...
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Does the panasonic dmc-lz40 take better pictures than the samsung wb35 camera? [duplicate]

I currently have the Samsung WB35f camera and it takes really great pictures and I recently changed the settings so the image quality was at super fine and they turned out better. My plan is too ...
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Given the same sensor size lens, will a higher megapixel sensor give more “reach” then a lower one?

I've been wondering this for a while now, and I can't seem to find a straight answer about this. If we are talking about the exact same sensor size, (lets say FX) and we are using a 50mm lens. ...
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Is there a meaningful image quality difference between the Canon Powershot SX410 vs SX510?

Can you show me a picture difference between the Canon Powershot SX410 and the Powershot SX510? Is there a noticeable difference between 12 megapixel and 20 megapixel here? I want to buy one of these ...
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What is it called when a camera generates files with more megapixels than the actual sensor provides?

I found in many Android devices that the "real array size", which is the actual pixel count of the camera sensor, is lower than the 4:3 Max picture the user can take. For example: Sensor Array = 1616 *...
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What my PPI should be set at for others to download my photos? [duplicate]

I sell my photos on Etsy for others to buy and download and I'm trying to figure out what I should set my PPI at and if I should resample when I do it...it is all very confusing. I'm reading all ...
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Is resolution the same thing as active pixel count?

If you have a camera with resolution Y x X, then is active pixel count always the product of the resolution? Are they saying essentially the same thing?
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Is the camera sensor or the lens the limit to resolution?

I have a pretty high res sensor on my camera, but sometimes I have the feeling my lens doesn't even get to this resolution. How can I tell if my camera sensor has not enough resolution or if the lens ...
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Which of these two metrics is a good measurement of sharpness?

I have seen two metrics used to measure the sharpness of a camera: Perceptual megapixels, used on Dxomark. Number of lines the camera can resolve in a resolution chart. However, these two sometimes ...