Questions tagged [pixel-density]

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Airy disks and pixel pitch on circle of confusions?

I read in this paper by Toshiba, which is in regards to optics in machine vision, that In machine vision, which processes each pixel of an image sensor at high brightness levels, the permissible ...
vannira's user avatar
  • 197
2 votes
3 answers
270 views

Image size trade-off with exposure

Suppose I am shooting in low light with a 20 mp (compact) camera. If I change the image size to say 5 mp, can I then use a faster shutter speed / smaller ISO setting? In other words, is there a trade-...
Weather Vane's user avatar
0 votes
3 answers
694 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 ...
LilBro's user avatar
  • 197
0 votes
4 answers
496 views

Apparent size of subject in two different cameras with the same resolution and focal length (or FOV)

Consider two cameras with the same resolution (let's say 640x480) and focal length (or FOV) looking at the same subject. Let's assume that the subject is in focus in both cameras. Will the image of ...
Bawb's user avatar
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4 votes
2 answers
3k views

pixel binning vs higher individual pixel size

Some smartphone cameras support pixel binning, to switch between high-res and low-light modes. An example would be the S20 ultra, which has an 108MP sensor that can bin pixels on a 3x3 grid, leading ...
lhk's user avatar
  • 143
0 votes
2 answers
130 views

What is the meaning of pixel size for sensors

I was reading into the specs of my camera, and in the manual it says that the sensor I am using (SONY EMX287) uses 6.9 μm pixel size, making it a sensor with high spatial resolution. So I was ...
StudentOIST's user avatar
-2 votes
1 answer
91 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 ...
Mini kute's user avatar
1 vote
3 answers
996 views

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 ...
wav scientist's user avatar
2 votes
3 answers
163 views

Need help choosing between two DSLR/lens setups

Currently, I use my smart phone's camera to photograph cars, trucks, and auto racing. I shoot outdoors, mostly in daylight, but often in gloomy overcast weather. Occasionally, I may shoot at dusk. I'...
user avatar
1 vote
4 answers
299 views

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 ...
loliki's user avatar
  • 113
3 votes
2 answers
2k views

Distortion towards the edges/corners of the field of view in an image

I am taking a picture keeping the camera horizontally in landscape mode from a height of roughly 3-4 ft, acquiring the top-view of the scene. It was seen that the objects placed towards the centre of ...
rkt's user avatar
  • 31
-1 votes
1 answer
407 views

Is it a bad idea to use a retina display for retouching? [closed]

If I edit on a retina display, when I open the processed photos on a low density display at 100% they look pretty soft to me, as I didn't apply enough sharpening. Since I can see much more details ...
Luigi Trevisi's user avatar
1 vote
4 answers
3k views

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 ...
eiqfb's user avatar
  • 39
0 votes
1 answer
664 views

sensor pixel size and image quality [duplicate]

I heard that bigger pixel size of sensor will get better quality, especilly noise in low light condition. if I set image size to a smaller resolution, will it affect the pixel size and improve image ...
xpw's user avatar
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7 votes
3 answers
4k views

How do depth of field and the circle of confusion relate to pixel size on the sensor?

I have been reading about depth-of-field and presume to have a sufficient understanding of what it means and how it is related to lens properties, lens aperture, focal length, sensor format size and ...
Parikshit Sakurikar's user avatar
4 votes
3 answers
747 views

Can I enable pixel binning on Canon PowerShot G1X?

On my camera, a Canon PowerShot G1X, I can select picture sizes from S to L. Now I wondered, if I select a smaller picture size, that would theoretically lead to more sensor surface per pixel, ...
GolezTrol's user avatar
  • 140
1 vote
1 answer
2k views

Does pixel size make a difference in image quality? [duplicate]

I am thinking of purchasing the Nikon D3200 its a 24.2MP camera but the pixel size is 14.8 µm² compared to the D3100 which is 14MP and a pixel size of 25.1 µm². Is this something that i should worry ...
PriceCheaperton's user avatar
26 votes
5 answers
24k views

Why and how do "bigger pixels" make a better picture?

This is going off of today's iPhone 5S announcement, when Phil Schiller said that "bigger pixels" is the key to a better picture. What does this mean? Is it true or just a marketing ploy?
jp89's user avatar
  • 2,561
7 votes
1 answer
730 views

Comparing 1:1 zoom on a 27" screen at 2560 x 1440 vs 22" screen at 1680 x 1050

When using Adobe Photoshop or Lightroom for example, and zooming the photo at 1:1 ratio, when you work on a 22" screen at 1680 x 1050, there is an great inside zoom. On such a screen the pixel are ...
Oliver's user avatar
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5 votes
1 answer
566 views

How can a newer camera increase ISO while decreasing pixel size?

I am a bit confused as I am considering to upgrade my canon 350D to 600D. The pixel size has reduced from 6.4 microns to 4.3 microns, however, top ISO has increased from 1600 to 6400. How did that ...
Ashish's user avatar
  • 51
4 votes
2 answers
8k views

What is the difference between pixel pitch and pixel density?

This site already has a question around what is pixel density, but it doesn't mention pixel pitch at all. I am wondering what the relationship is, and what is important about the relationship to ...
dpollitt's user avatar
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14 votes
4 answers
4k views

Why do some DSLRs have fewer megapixels than some pocket cameras?

Some point and shoot cameras like the Olympus mju range have more megapixel capabilities than many DSLRs. Why is this? Is this because they have larger sensors or more dense ones? What are the trade-...
Vass's user avatar
  • 387