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14 votes

Why are camera sensors green?

An unfiltered CCD or CMOS sensor looks very similar to any other silicon integrated circuit that has a very regular/repeating structure of similar structure size - semi-metallic gray (from silicon, ...
rackandboneman's user avatar
13 votes

Why aren't square CMOS sensors more popular by now?

Aesthetic considerations of the image aside, it's just mechanically obvious that a square fits inside of the image-circle produced by the camera's lens a lot better than a rectangle does. The short ...
mattdm's user avatar
  • 143k
12 votes

How would a curved sensor change camera and lens design?

Digital image sensors used in modern cameras are essentially silicon chips: Sensor dies are produced in large batches on silicon wafers. The wafers are cut into many pieces with each piece housing a ...
Peter - Reinstate Monica's user avatar
10 votes

How would a curved sensor change camera and lens design?

Curved film planes were very common in low-end roll film cameras and even 35 mm simple cameras. This is because they improve the image quality of a lens with a spherical focal surface, as is the case ...
Zeiss Ikon's user avatar
  • 7,140
7 votes
Accepted

Why are camera sensors green?

The color you see when you look at a "sensor" is usually determined by the combined colors of the colored filter arrays that are placed directly in front of the actual silicone chip as well ...
Michael C's user avatar
  • 175k
7 votes

How would a curved sensor change camera and lens design?

It's not like there isn't any research being done in this direction: Origami silicon optoelectronics for hemispherical electronic eye systems ...reshaping conventional planar sensor systems into ...
Knob Scratcher's user avatar
5 votes

Are these stripes bug or not?

No, it is not normal. These stripes look a lot like Newton's Rings, even though they aren't rings. Did you use some filter in front of the lens, which might have created those patterns?
ths's user avatar
  • 7,181
5 votes

Why exactly do "CMOS astrophotographers" prefer CMOS sensors?

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 (...
juhist's user avatar
  • 6,835
5 votes

What is the difference between APS-C and CMOS sensors?

So this thread actually still comes up in search so i'm going to add a little addendum to it. I think the reason some folks get confused about this is because sometimes during compares it shows up in ...
Stratus41298's user avatar
5 votes
Accepted

What is the difference between APS-C and CMOS sensors?

Those are completely orthogonal concepts. APS-C is a sensor-size. Other sensors for DSLRs are Full-Frame or APS-H. CMOS is a type of sensor. Other sensors are CCD. One can have an APS-C CMOS sensor, ...
Itai's user avatar
  • 103k
4 votes
Accepted

Native ISO vs Boost ISO. What kind of amplification corresponds to each of them?

You're getting a little confused. Un-boosted ISO Or what you're calling "native range." There's a native ISO setting, which is what the sensor uses without any amplification, and you can consider ...
inkista's user avatar
  • 52.5k
4 votes
Accepted

What are the bottlenecks in a regular CMOS sensor chip?

What is preventing me from sampling it at a higher rate? Every discrete step in the operation takes time. Changing the value of inputs to a logic gate takes time. Once those inputs have stabilized, ...
Caleb's user avatar
  • 31.7k
4 votes
Accepted

Active array, Optical Black region and non-microlensed region in CMOS sensor

Those are known as manufacturing buffer pixels or, sometimes, dummy pixels. They often exist to act as a sponge for any electrical interference that would otherwise effect the imaging pixels. ...
PhotoScientist's user avatar
4 votes

Is the color reproduction of different cameras inherent to the sensor or due to software?

It can be about either the sensor's sensitivity to specific portions of the visible spectrum or about the algorithms used to create color from the monochromatic luminance information collected by the ...
Michael C's user avatar
  • 175k
4 votes

Why are camera sensors green?

Photographic film is naturally sensitive only to violet and blue light frequencies. Hermann Vogel, Professor Berlin Technical, attempting so solve the problem due to “halation”,. He had some emulsions ...
Alan Marcus's user avatar
  • 39.4k
4 votes

Why are camera sensors green?

I've personally seen sensors of various colors in different cameras; green, pink, blue, etc. Without the specific dimensions and details on construction, it is tough to say, but I'd imagine that the ...
Shamtam's user avatar
  • 141
3 votes

Why do my camera's specs give a 120 degree angle of view when I calculate it should be much narrower than that?

The angle is usually specified for the diagonal, which gives us 77°. This is still less than 120° which means the lens is not rectilinear. Most likely a barrel distortion, common in fisheye lens - ...
szulat's user avatar
  • 5,059
3 votes

How does on-sensor phase detection AF not impact the image?

How does on-sensor phase detection AF not impact the image? It does. But the effect is usually so miniscule as to not be noticeable. With early "hybrid" sensors, only a few thousand of the millions ...
Michael C's user avatar
  • 175k
3 votes

Is the color reproduction of different cameras inherent to the sensor or due to software?

Yes, both. Some people like 'natural' colours, some prefer 'vivid'. The nominally neutral software preference in a camera (you normally get a choice of 'enhanced' settings these days) may tend in ...
Laurence's user avatar
  • 1,696
3 votes
Accepted

What is the difference between MOS and CMOS?

MOS means Metal Oxide Semiconductor. It is a specific way of device formation on silicon wafer. See this link. MOS, unqualified, usually means using a single doping technique to either create n-...
TFuto's user avatar
  • 6,206
3 votes

Why exactly do "CMOS astrophotographers" prefer CMOS sensors?

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 ...
Alan Marcus's user avatar
  • 39.4k
3 votes

Why exactly do "CMOS astrophotographers" prefer CMOS sensors?

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 ...
Michael C's user avatar
  • 175k
3 votes

Why exactly do "CMOS astrophotographers" prefer CMOS sensors?

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 ...
jrista's user avatar
  • 70.8k
3 votes
Accepted

What could cause the solid red/orange effect at the bottom of this picture?

This is a corrupt JPEG file. You should rescue any other data from the medium on which it was stored ASAP and then retire that storage; these things never get better.
Philip Kendall's user avatar
  • 22.1k
2 votes

Native ISO vs Boost ISO. What kind of amplification corresponds to each of them?

Strictly speaking, "Boost ISO" means nearly as much as "HD" written on the objective. It is a buzzword without formal definition and may be misused as such. Consequently, it is not ...
Euri Pinhollow's user avatar
2 votes

Native ISO vs Boost ISO. What kind of amplification corresponds to each of them?

The answer is 2, hardware amplification only for native ISO, hardware with additional software amplifications/reduction for extended ISO. Extended ISO is like taking a RAW image and then changing ISO ...
den miol's user avatar
  • 227
2 votes

Do I need to take bias frames for long exposure astrophotography?

I've had a couple of tries with Siril and found it very complex and probably designed for the astronomy enthusiast who takes photograph's rather than the photographer who takes the occasional astro ...
dmkonlinux's user avatar
  • 1,015
2 votes

How is ISO and output communicated on CMOS sensors?

Looks like this anwser on electronics.stackexchange.com answers it: there's a second amplifier stage between the sensor readout electronics and the A/D conversion, where the ISO setting is translated ...
remco's user avatar
  • 3,171
2 votes

Difference between a "camera at three broad spectral bands" (sic.) and a standard RGB camera?

It does not seem to be substantially different from standard CMOS sensor other than the fact that most Illunis cameras seem to be based on CCD rather than CMOS chips. The three color bands centered on ...
Michael C's user avatar
  • 175k
2 votes
Accepted

Where can I find an organic photoconductive film (OPF), Camera or Sensor alone?

The newest update to that announcement is from two months ago: "Panasonic unveils 'industry-first' 8K organic image sensor with global shutter", as the article mentions they have a prototype and Apple ...
Rob's user avatar
  • 1,823

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