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A sensor is the digital camera's equivalent to film. It contains millions of tiny light-detecting areas called photosites, which convert light into an electric charge. After exposing the sensor to light, this charge is read from each pixel and converted into a digital image.

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What is the MECHA DEVICE SERVICE in the Sony Alpha 7

It just came back from the repair with a listing that this part was changed out A1976128A. Any idea what it is? I'm guessing it's the sensor, but it's weirdly named.. nothing else comes up on google.
3
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5answers
669 views

What is Snapsort's true resolution?

On Snapsort I found this explanation: True resolution Manufacturers advertise high megapixels to sell their cameras, Snapsort calculates the true resolution of each camera based on the ...
3
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1answer
61 views

Are these weirdly-shaped purple stains really from particles under the first layer of the sensor, and if so, what can I do about it?

I have those little particles on my pictures. There are a lot of them, as you can see, and they have different weird shapes: I already sent my camera for a sensor cleaning and the guys at the shop ...
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4answers
1k views

Might future advances in sensor technology reduce or eliminate noise?

Is there a possibility that future tech advances may reduce or eliminate the noise when using high ISO setting, or is this noise unavoidable and inherent to all digital sensors? If there is a ...
3
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0answers
100 views

What are these strange lines on images from my Fujifilm FinePix F850EXR?

My camera recently started displaying lines on captured images along with some discoloration (you don't see the lines or any discoloration when simply looking through the lens). There was no ...
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1answer
56 views

Same mfg process = same performance in FF vs. cropped sensor?

I've seen generalizations that full-frame sensors tend to exhibit better low-light performance and dynamic range than a cropped-sensor specifically because they tend to use larger photosites that ...
6
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3answers
176 views

How relevant are the DxOMark scores and tests?

To me the DxOMark sensor rating seems a bit bizarre. They recently rated the sensor of Nikon D3300 to the same score as the Canon 1Dx got which I find unlikely to reflect their performances, and which ...
7
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7answers
866 views

Does a larger sensor resolution increase the difficulty of shooting hand-held?

I'm thinking of upgrading to a D800 and I think I read something about the 36MP resolution of the sensor to be a liability when hand-holding the camera at lower shutter speeds. Unfortunately I cannot ...
6
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2answers
220 views

Are there digital cameras with a RGBW sensor?

I have seen on Dpreview that fujifilm has been granted a patent for a new type of sensor with a strange non-Bayer pattern. Thinking about it... Is there a camera using a simpler Bayer RGBW pattern? ...
7
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5answers
459 views

Why are there no rotatable sensors instead of grips for portrait photography?

Why are there (at least to my knowledge) no rotatable sensors instead of grips for portrait photography. It seems like a great solution to obtain a lightweight DSLR for both landscape and portrait ...
2
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6answers
193 views

Why don't sensors have a wider aspect ratio?

than 3:2, like 16:9 or 16:10? Given the popularity of widescreen TVs and computer monitors with wide aspect ratios, and that most photos are viewed on a screen, rather than printed, and that the eye ...
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1answer
86 views

What are the main limiting factors for dynamic range in modern cameras?

Another question got me thinking about what is limiting dynamic range in digital cameras. From my understanding the precision of the analogue-to-digital converter, i.e. how many discrete levels it can ...
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1answer
93 views

Does a deeper photosite increase the dynamic range?

As I understand, a bigger photosite (on the sensor) enables a bigger dynamic range and also better high ISO performance. Is there a reason not to make the photosite deeper?
3
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2answers
313 views

Nikon D5100 half bright-half dark image with horizontal thin black line

I am getting half bright-half dark image with horizontal thin black line on my Nikon D5100. Does anyone has any idea ? i am extremely worried. Warranty just expired. I have sample images uploaded at ...
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2answers
89 views

why is a compact sensor brighter than a APS-C size sensor

So I may be missing something but I cannot think what it can be. I have a Sony compact hx9v and an NEX-6. the 16mm on the NEX is very similar to the compact at its widest, so I thought I would ...
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2answers
116 views

Convert RGB camera to infrared, but 3 channels not just 1?

A common way to make an infrared camera is to remove a commodity camera's IR-blocking filter (and add another filter to block the visible spectrum). Is there a similarly cheap way to convert an RGB ...
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3answers
64 views

A/D conversion, processors marketed less actively than sensor characteristics?

Two questions: In most literature about digital photography, there is some info-graphics about the path of the light signal from sensor to the storage. It starts with sensor, then there is the ...
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2answers
329 views

Sony A7R Noise compared to Nikon D800/E Sample Explanation

I am looking for a high resolution camera for fine art prints and the Sony A7R seems great since it has the same Sensor res as the D800 in a smaller enclosure. For some reason when I look at sample ...
6
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2answers
241 views

What are the lens-mount benefits of mirrorless systems?

There are plenty of comparisons between DSLR cameras and mirrorless/EVIL/system cameras, and the overall picture is that the two systems target different users and different uses. But I'd like to ...
4
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1answer
141 views

What is the benefit of the sensor marker?

I know that this marker on my Canon EOS shows me where my sensor is: Form technical point of view this is interesting, but is there benefit for me as a photographer to know exactly on which level ...
2
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1answer
137 views

What is the precise definition of SNR, as used by DxOmark?

What is the precise definition of signal to noise ratio, as used by DxOmark? Please see here, after clicking Measurements, SNR 18% (it's not directly linkable). I am looking for an explanation (in ...
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4answers
88 views

Dark spots - sensor toast?

I can't seem to get rid of some very annoying dark spots that are very noticeable under certain lighting conditions. I've taken a test shot of my monitor showing a white background and amped up the ...
2
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2answers
176 views

Can an Optical Low Pass Filter be applied via a lens filter?

I constantly see references to video being the application where an Optical Low Pass Filter is most useful, but it seems that still images do best without one. Would it be possible to then have a ...
13
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1answer
429 views

Is it really better to shoot at full-stop ISOs?

The second half of this answer says Notice that I only shot full-stop ISO which is important with Canon DSLRs because the gain to obtain the 1/3 stops in between is applied in software by the ...
4
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2answers
402 views

What is this dead pixel problem really called?

On all photos from my last vacation I see this red point. It appears on in-camera JPGs as well as on RAW files. A see a red pixel in the same position on all pictures. How is this problem called? Is ...
4
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2answers
100 views

Does Stopping down affect the performance of the sensor's AA filter?

I noticed a while back that with a lens stopped right down (say f16-22), any dust on the sensor becomes much more noticeable and "focused", and wide open (say f1.4) it is practically invisible. This ...
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1answer
165 views

How to clean spit off my camera sensor?

A short while ago, I [foolishly] attempted to clean some specs of dust from the sensor of my camera by blowing on it. While this was successful in removing the dust, I inadvertently spat on the ...
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1answer
137 views

Has Canon released any point and shoot cameras without optical low-pass filters?

Do either the Canon PowerShot SD880 IS or the S100 have anti-aliasing filters? If so, has Canon announced any P&S model(s) without OLPFs?
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2answers
133 views

Why can I recover more highlights RAW files from some cameras than from others?

I have two cameras that both shoot raw: Nikon D800 and Fujifilm X20. When editing I have discovered that I can recover a lot more information from a D800 raw image than a X20 raw image. Is it because ...
7
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2answers
234 views

Why don't mainstream sensors use CYM filters instead of RGB?

From what I understand most digital cameras have a sensor where each pixel-sensor has three sub-sensors, each one with an R,G and B filter. RGB is obviously the more fundamental colour model since it ...
4
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2answers
315 views

How does a sensor cause vignetting?

Vignetting is usually assigned to lens characteristics, or caused by light-blocking objects in front of a lens, like lens-hood or a filter. Is there vignetting (or vignetting-like effect) caused by ...
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4answers
225 views

Have DSLR sensors made improvements since the transition to CMOS?

I know that CMOS sensors appeared in the beginning of 90s, and evolved up to 2000s. I'm mainly talking about high ISO photos quality. For example, Canon 5D mark 3 has better results in high ISO tests ...
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3answers
148 views

How does the spectral sensitivity of different sensors affect the resulting photo?

I am learning about light and color formation but I don't understand how does the sensitivity affects an image. Take for instance the different sensitivities for two "cameras" for each RGB channel ...
2
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1answer
223 views

What is causing this one line on all my photos from Nikon D3100?

Whenever I take a picture with my dslr, there is a strange line that shows up on the left of the picture all the time. Can this be fixed my myself, or do I have to send this one in?
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0answers
36 views

Distance and angle of a object using camera related sensor [duplicate]

Firstly I m not a photographer but I m trying to solve a problem and I think photography stack exchange might have some help for me. I saw following post and I have a follow up question. I know ...
0
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4answers
437 views

Shooting 50mm EF vs EF-S

I have a Canon EOS 550D with a APS-C sensor. I have two lenses, (1) Canon EF-S 18-135mm f/3.5-5.6 IS and the (2) Canon EF 50mm f/1.8 Mk II. If I use the 50mm focal length in the first EF-S lens... I ...
0
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0answers
86 views

Good examples of full frame's advantages over the cropped sensor? [duplicate]

There is a good topic on the site called "Good examples of RAW's advantages over JPEG?" There are many theoretical discussions over the internet including on this site about the full frame and ...
22
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5answers
4k 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?
2
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2answers
219 views

How does sensor size relate to image resolution?

How is it possible that with a particular sized sensor (say APS-C) it is possible to get different sized image cameras (by this I mean a 10 megapixel camera, a 15 megapixel camera etc)? Where does ...
4
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2answers
982 views

What causes banding noise?

I'm looking for information (and references) on three related topics: What causes banding noise in CMOS sensors? What is the physical/technological cause? Is the cause the same in CCD and CMOS ...
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2answers
73 views

Point and Shoot sensor

In a point and shoot camera, is the sensor exposed even when the camera is off? ie. If the camera is off, can the sun still damage the sensor? Thanks very much.
3
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1answer
250 views

Could a damaged sensor cause stripes on the image?

Today I discovered that my camera has started to save pictures like this: But, when I use the camera viewfinder, everything looks fine, both via LCD and via the EVF. I thought it could be the SD ...
3
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1answer
258 views

Why is there a vertical lines pattern in noise?

Take a look at this image (shot with a Nikon D60). The shadows have been aggressively brightened to make the noise clearly visible. If you look closely, you'll see that the noise is not completely ...
8
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2answers
365 views

Nice cameras for B/W photography?

Considering that most people cannot afford a Leica Monochrom, are there any other cameras that are better suited than average for Black and White photography? I mean, some sensor designs emphasize ...
4
votes
2answers
185 views

Why does the Pentax K-01 have less DR than the Pentax K-5?

I thought that the K-01 and the K-5 both sported the same sensor, but checking their specifications in Snapsort I found that their Dynamic Range is different by a little bit more than 1 EV (12.9 EV vs ...
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3answers
226 views

How much does the sensor affect image quality if shooting in RAW?

Knowing there are different sized sensors and a nearly unlimited combination of lenses with the various cameras, since RAW captures RAW light data, how much does the sensor itself play a role in ...
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2answers
125 views

Why some pixels become hot pixels?

What is the physical explanation to hot pixels? What happens to the sensor when a good pixel become an hot pixel?
19
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1answer
517 views

Is it true that shooting in live view mode adds noise to the picture?

I heard from some experienced photographers that shooting in live view mode creates additional noise compared to shooting through the view finder under the same conditions. I assume that while using ...
2
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1answer
120 views

Does security scanning a camera with battery inside cause damage to the sensor?

I was at 911 memorial last week. My Fuji S-1 Pro camera was scanned with the battery installed. Security personnel would not let me remove battery. Since then, a dark spot shows up on photos. This has ...
3
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2answers
186 views

Does high reflectiveness of digital sensor lead to poor lens performance?

I Googled film vs dslr and found an article from 2007 that said: Digital sensor has higher reflectiveness than film. The light bouncing back from sensor will cause flare and lead to poor optical ...