Samsung unveils 50MP ISOCELL JN1 camera sensor
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- Anonymous
- vjX
- 12 Jun 2021
aadddd, 11 Jun 2021People here really believe that full frame and smarphone ca... moreErm who? You?
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- Anonymous
- vjX
- 12 Jun 2021
Kurosawa, 11 Jun 2021Which means, you will need much longer exposure time to get... moreThat wasn't what you said. I quote "With this pixel size all exposures will ve long". You didn't mention anything about image quality.
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- Anonymous
- pQr
- 11 Jun 2021
Anonymous, 11 Jun 2021Note that pixel size or sensor size does not affect how muc... moreNote that even 0.8 micrometer pixels + 250mm f/10 lens or a 2500mm f/100 lens would still capture the same amount of light per time from a small galaxy, the difference would be that the galaxy consists of many more pixels and this leads to more read noise.
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- Anonymous
- pQr
- 11 Jun 2021
Note that pixel size or sensor size does not affect how much light per time you capture from an object, if you use exactly the same lens. A sensor can only capture the light that goes through the lens. So it doesn't really matter whether you photograph a galaxy with small pixels or large pixels as long as the effective diameter of the lens is the same and as long as the number of pixels per angle is the same. When you take a photo of a galaxy, a 54 megapixel full frame camera with 4.0 micrometer pixels and 250mm f/10 lens will perform similar to a tiny sensor with 0.8 micrometer pixels and 50mm f/2 lens.
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- Anonymous
- rN7
- 11 Jun 2021
The one they gave xiaomi with 50 individual 1.4um pixels is far superior
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- aadddd
- xID
- 11 Jun 2021
People here really believe that full frame and smarphone capture same amount of light? Dont bother with photograpy, you need at least 50 IQ, you can only dream for IQ like this
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- Kurosawa
- ndi
- 11 Jun 2021
Nick Tegrataker, 11 Jun 2021..which does not contradict my initial argument that the ex... moreWhich means, you will need much longer exposure time to get the comparable image. Actually you will never get the same image, since smaller pixels will always be more noisy than large pixels and have less dynamic range. Especially in low light conditions, where dominating noise is kTC and conversion noise.
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- Samath N8 808 owner
- Dk}
- 11 Jun 2021
Anonymous, 11 Jun 2021Exposure time is determined by ISO and aperture size only. ... moreI've shot a lot of manuals on my Canon 600D.
Shutter speed is determined by an actual moving shutter which has a mirror. Ok? It opens and closes as per shutter speed we decide which is in seconds or its units.
ISO is sensitivity of the sensor and higher ISO means more light and noise.
Aperture is like a set of moving, multiple blades which create a hole between them.
Together they decide the exposure of the picture, in conjunction with the actual light we have.
P is Programmed Automatic.
A is Aperture priority in which I decide aperture and rest camera decides as per its decided ideal exposure.
S is Shutter priority in which I decide shutter speed and rest camera decides as per its decided ideal exposure.
M is full manual in which I decide it all.
Rest of the modes are not relevant, except video.
I admit I was wrong about bigger pixel size giving more light. This is because I have maturity, unlike you and I checked.
Just because I didn't know one thing, doesn't give you license to speak rubbish. What's your age by the way? I have a guess but still?
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- Nick Tegrataker
- Xpf
- 11 Jun 2021
Kurosawa, 11 Jun 2021Yes, but you will get two totally different images, because... more..which does not contradict my initial argument that the exposure will be the same. I never implied that those images will be remotely close to being similar in terms of SNR and raw dynamic range.
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- Kurosawa
- ndi
- 11 Jun 2021
Nick Tegrataker, 11 Jun 2021It doesn't. Assuming that both sensors use exactly the... moreYes, but you will get two totally different images, because of the different pixel size. Either under or overexposed or extremely noisy, depending on the exact illumination conditions.
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- Anonymous
- vV5
- 11 Jun 2021
Kurosawa, 11 Jun 2021Of course pixel size has a lot to do with exposure time. ... moreExposure time is determined by ISO and aperture size only. Nothing to do with pixel or sensor size. This reply is to Samath too, who apparently has been snapping for 10 years in auto mode.
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- Nick Tegrataker
- Xpf
- 11 Jun 2021
Samath N8 808 owner, 11 Jun 2021Well of course it does, who told you that?
That's why... moreIt doesn't. Assuming that both sensors use exactly the same ISO standard and a lens with the same F-stop, a tiny 1/4 inch sensor used on a phone camera and a giant full frame sensor found inside a ILC will capture images with an identical exposure given the same shutter speed and ISO.
Go to your nearby store and try adjusting the shutter speed so that the exposure will be identical on both Galaxy S21 and S21 Ultra, while setting the ISO at the same value.. you will definitely the same or at least very similar shutter speed value between these two.
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- Samath N8 808 owner
- Dk}
- 11 Jun 2021
Anonymous, 11 Jun 2021Your phone can also do that too if the ISO is set high enou... moreDon't joke bro, you're teaching me sacred trinity? I've been a snapper for 10 years now, I know all that, but not with this name.
Pardoning you this time, but you're right about pixel size.
Now, don't tell me pixel size doesn't affect quality and my original argument (about this sensor being misplaced in a flagship) was wrong.
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- Kurosawa
- ndi
- 11 Jun 2021
Anonymous, 11 Jun 2021Your phone can also do that too if the ISO is set high enou... moreOf course pixel size has a lot to do with exposure time.
Smaller pixel = less light, less light = more time to achieve the same signal.
If you have 2 pixels, one with 1um size and one with 2 um size, which are otherwise "equal", the 2um will capture 4 times more photons for the same time. Means 4 times larger current. So, 4 times larger signal. Or you need 1/4 of the time to achieve the same signal as the 1um pixel.
ISO is just gain, that comes after the pixel. It applies to both signal and noise and if you have no signal it amplifies only noise. Pixel size is crucial for pixel performance.
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- Sam Sung
- PV1
- 11 Jun 2021
Is this Dual Pixel PDAF?
- SuuperBaka
- q}I
- 11 Jun 2021
Nick Tegrataker, 11 Jun 2021"you simply can't judge how good this sensor is w... moreExactly
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- Anonymous
- vjX
- 11 Jun 2021
Samath N8 808 owner, 11 Jun 2021Well of course it does, who told you that? That's why... moreYour phone can also do that too if the ISO is set high enough. DSLRs reach short exposure times at night because they use high ISO. Heard of the sacred trinity of photography? Google and learn.
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- Samath N8 808 owner
- Dk}
- 11 Jun 2021
Shadocx, 10 Jun 2021What midrange have 4k60?Iqoo Z3 5G, and some past year flagships which now are like midrange like G8x, etc.
And its just future proofing. The sensor doing 4k60 means some manufacturers might engage it for 4k30 only. No sensor goes full on.
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- Samath N8 808 owner
- Dk}
- 11 Jun 2021
Wereweeb, 10 Jun 2021LMAO at all the ignorant comments. Smaller pixels and small... moreTell me, how does a 1.28um match a 1.8 um in performance?
This 1.8um is 1.9 times bigger sensor. Which technology can bridge this big difference?
In automobiles there's no replacement for displacement. And in camera, no replacement for pixel size. Learn this by heart bro.
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- Samath N8 808 owner
- Dk}
- 11 Jun 2021
Anonymous, 10 Jun 2021Pixel size does not determine exposure time.Well of course it does, who told you that?
That's why DSLR's are able to do 1/100 in night time.