# Questions tagged [pixel-size]

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### Determining the size of a pixel at a given distance

I have a camera looking at a flat plane that is a known distance away from it. I also know the cameras intrinsic parameters. The image from the camera looks like this: (it's grayscale but that shouldn'...
• 113
1 vote
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### Calculating the size of an object from a single image, given the distance from the camera

I was looking at other questions on here and I'm pretty sure it's not a duplicate so here it goes. I'm working on a problem where I need to calculate the size of a particular object in an image. The ...
1k views

### How to count the amount of pixels an object in a photograph takes up

I have been trying to find out the distance of an of object from an image using this calculator https://www.scantips.com/lights/subjectdistance.html But I need to know how many pixels long the object ...
114 views

### Does small sensor/pixel has an upper limit of dynamic range?

It is from a friend that I heard: Cellphone cameras, due to their small sensor size, can have at most 11 stops of dynamic range (I did not ask too much about where that came from or what source is ...
• 539
755 views

### Does having larger pixel pitch (more microns) makes camera brighter at night?

Let's say I have a full-frame camera A with pixel pitch 4 microns and a full-frame camera B with pixel pitch 6 microns. Will using same camera lens at same exposure f/2.0 and same ISO allow me to ...
• 197
6k views

### Why is 16:9 aspect ratio rarely used in professional photography?

Sony uses a 16:9 (1.778) aspect ratio for still photos taken from its camcorders. As a guideline, panoramic photos commonly are 3:1, which is wider, while medium format are well-known to be half that ...
• 594
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### What are the standard pixel, inches and megabyte sizes for fine art photography?

I know that 6x4 inch photos were popularized by 35mm cameras, which were then superseded by 4x3 aspect ratio in digital cameras, while 16x9 has taken precedence in general because of widescreen ...
• 594
136 views

### Does photo quality deteriorate when you scale the image size larger?

If a scenic photograph is scaled double its original size to conform to some printing dpi/inches criteria, the default setting in Gimp appears as "cubic interpolation". Assuming this is the ...
• 594
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### Trying to understand effect of lens lp/mm on image pixels

I'm trying to understand how lens quality in terms of lp/mm affects the pixels in an image. Suppose I have a Sony IMX253 (1.1" sensor format, 3.45um pixel size, 4096x3000 resolution). In order to ...
92 views

### Why increasing number of cameras on drone improves resolution?

Pegasus drone and in general use normal cameras but surprisingly have the same effect of high magnification telescope. I know using several monitors improves ...
1 vote
3k views

### 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 ...
13k views

### What does 2500 pixels on the long dimension mean?

I have a rather silly and very simple question. In all photography competitions, they mention that the pictures should be sized to x number of pixels on the long ...
• 161
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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 ...