Questions tagged [ccd]

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21 votes
4 answers

Why are camera sensors green?

When I look at a CMOS sensor it's green. But CCD sensor. photos in the internet show pink sensors. So what exactly defines the color of an camera sensor? Especially what defines colors of the ...
Delta Oscar Uniform's user avatar
4 votes
4 answers

Why exactly do "CMOS astrophotographers" prefer CMOS sensors?

This answer to How can I avoid star trails without an expensive tracking mount? is consistent with this answer to What is synthetic tracking, and why would a 35 cm Earth imager be 10-30x better than ...
uhoh's user avatar
  • 1,817
3 votes
3 answers

Bayer color effective true resolution [duplicate]

Because in a typical digital camera, each pixel records only one color though use of a Bayer filter or similar mechanism to achieve color vision, the true resolution of a ## megapixel sensor is ...
g491's user avatar
  • 153
2 votes
2 answers

Are colours from CCD sensors different compared to colours obtained from CMOS sensors?

I heard multiple times that cameras with CCD (I am talking about consumer DSLR) produce more lively or simply more pleasant colours. I think it's a myth but it's not clear to me how much basis it has ...
FarO's user avatar
  • 1,329
1 vote
2 answers

How to check for excessive light from faculae on the dwarf planet Ceres?

The Dawn space probe took a lot of photos of the dwarf planet Ceres in the asteroid belt, and discovered the strange looking faculae (white spots) in the Occator crater that seem to glow in the photos,...
Sven _Andersson's user avatar
1 vote
1 answer

Determining the CCD width of a camera [duplicate]

How can I determine the CCD (imaging area width) given image details such as focal length? I have images taken by cameras, but very little information about the cameras themselves (I have focal length ...
figbar's user avatar
  • 113
0 votes
2 answers

Which is the link between a digital ISO value (e.g. 100) and the sensor sensitivity?

There are many questions about ISO (such as 1 and 2), but none of them answers my precise question. My doubt starts from the exposure formula (for instance let's consider it in linear scale): My ...
Kinka-Byo's user avatar
  • 514
0 votes
1 answer

Why does purple lines appear in CCD?

I know CCD scans the array line by line and over voltage from even a single pixel can wreck the whole line. But why are these wrecked lines colored magenta?
Delta Oscar Uniform's user avatar
0 votes
1 answer

How do I estimate PPI from camera specifications? [closed]

I have an HDL-20D digital camera with 1000TVL horizontal resolution, S/N ratio 54dB and 2200k-pixel 2/3-inch 2x IT-CCD and these are the specifications: How do I calculate PPI from these details? ...
Ambareesh's user avatar
  • 103