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With a CMOS sensor, the analog-to-digital converters (ADCs) is on the same die as the imaging sensor. With a CCD, you get analog signal out of the chip, and an external analog-to-digital converter (ADC) needs to be used. There are benefits and drawbacks of each approach. For example, you can pair CCD with a really good ADC having high dynamic range, and ...


3

The key factor with CCD sensors when it comes to high speed (or what we call Lucky) imaging is the readout speed. CCD cameras due to the nature of their technology, which moves charge (electrons) from one pixel to the next down the columns, one row at a time, favors SLOW readout. Further, due to this charge-shifting nature of CCD sensors, there is usually no ...


3

The other answers cover CMOS vs. CCD. There is one additional consideration that has not been mentioned in either the question nor any of the existing answers that is a significant consideration to serious astro-photographers: cooling capacity. Most serious astro-photographers prefer using sensors not encumbered within typical consumer cameras. This allows ...


3

The CCD (Charged Coupled Device) sensor consists of row after row of photosites called photodiodes. During the exposure, photons bombard causing the photodiode to gain an electric charge. The more photon hits at any given photosite, the greater the accumulated charge. When the shutter is closed, the charge is then moved within the site to a storage area. ...


2

I saw multiple posts online which said it's reduced by 1 / sqrt(2), but they offered no explanation of why this is the case. This one is easy to explain. The typical Bayer tile has two identical green-filtered photosites and one instance of each of red- and blue-filtered photosites. The green-filtered ones are usually on the diagonal. Suppose the ...


2

It feels awkward for spending so much R&D for a sensor technology and then abandon it. Do you see it awkward to spend much R&D on film and then abandon it? You know, Kodak built the first ever digital camera and then abandoned it. That was very awkward, far more awkward than what Nikon did, as we all know the digital camera later reappeared and ...


1

IF the filters in Bayer masks created three discrete color ranges in which any particular wavelength could only pass through a single filter, then the resolution would be 1/2 for the "green" filtered wavelengths and 1/4 for the "blue" and "red" filtered wavelengths. IF the filters in Bayer masks created three discrete color ranges in which any particular ...


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