It's actually one sensor and half of another. This apparently gives a high frame rate and solves the rolling shutter (jello shake) problem in HD videos.
http://k-rumors.com/k3-new-samsung-sensor-with-global-shutter/
Dual APS-C Sensor Camera From Samsung?
(11 posts) (5 voices)-
Posted 3 years ago #
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I don't understand what they're claiming there. Can anyone explain?
Posted 3 years ago # -
??? This apparently gives a high frame rate (8.2fps) and solves the rolling shutter problem on CMOS sensor. CCD sensors don't have the rolling shutter problem. So you get a CMOS sensor that behaves like a CCD. There's no mechanical shutter moving up and down. Instead the sensor itself "turns on and off" in a sequence to record the image/video.
I could give you more specifics on how it technically works but then I'd have to kill you ;^)
Posted 3 years ago # -
Though this really isn't a clear example of the above, here's a video showing what 8 frames per second looks like.
[+] Embed the video | Video Download Get the Flash Video Now imagine if you didn't have a big fat mirror moving up and down or the mechanical shutter opening and closing. You'd have a pretty "stable" camera with not much camera shake.
Posted 3 years ago # -
Cool.. Looks like I can sell my D70 soon :-) Just love its 1/8000 flash sync speed.
Posted 3 years ago # -
You mean 1/500s flash sync speed...
Posted 3 years ago # -
I hope that's what they're saying. It would be great to fix the rolling shutter in movies—not to mention for stills in future cameras with an EVF like you're saying, Niko.
Posted 3 years ago # -
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Each half-sensor has 6.2MPx with a speed transfer of 8.2fps through Global Shutter, whole sensor has 12.4MPx with a total transfer rate of 8.2fps.
Both half-sensor are activate and synchronized by “Synchro-shutter” device to the same exactly time and the information from both half-sensor is drained through 4 digital channels to the image processor.I have no idea, and that's why I asked. Why two half-sensors? (It looks like it's only APS-C sized in total, by the way.) What's the advantage? It sounds like gibberish, but I'm sure someone knows what it does. Hopefully at least the people that designed it do. ;-)
Posted 3 years ago # -
PB PM said:
You mean 1/500s flash sync speed...Earlier Nikons had an electronic shutter for 1/500 and above. Since they were electronic, meaning, the actual movement of the shutter does not actuate at 1/3000 or 1/500, the sensor tuns its self off(for any shutter speeds greater than 1/500) after the shutter is opened, and BEFORE the shutter closes.
So:
1. Shutter opens and sensor captures image.
2. Sensor stops capturing image, for 1/500 speeds and above.
3. Shutter closes.This allows for their to be no light fall off from the shutter opening and closing. Either the sensor is on and capturing an image, or it is off not capturing an image. Their is no vertical movement exposing the sensor. So, a flash that lasts for 1/600th of a second can be captured at 1/1000 of a second because the flash is on longer than the sensor is on/exposed. But if you have a slow(relatively) shutter flapping in the way, the WHOLE image may only be exposed for 1/250 so part of the sensor will not be exposed because the flash is only lasting 1/600.
FP Sync forces the flash to last longer allowing for high speed sync. I think, someone else correct me if I am wrong.
Posted 3 years ago # -
PB PM said:
You mean 1/500s flash sync speed...Earlier Nikons had an electronic shutter for 1/500 and above. Since they were electronic, meaning, the actual movement of the shutter does not actuate at 1/3000 or 1/500, the sensor tuns its self off(for any shutter speeds greater than 1/500) after the shutter is opened, and BEFORE the shutter closes.
So:
1. Shutter opens and sensor captures image.
2. Sensor stops capturing image, for 1/500 speeds and above.
3. Shutter closes.This allows for their to be no light fall off from the shutter opening and closing. Either the sensor is on and capturing an image, or it is off not capturing an image. Their is no vertical movement exposing the sensor. So, a flash that lasts for 1/600th of a second can be captured at 1/1000 of a second because the flash is on longer than the sensor is on/exposed. But if you have a slow(relatively) shutter flapping in the way, the WHOLE image may only be exposed for 1/250 so part of the sensor will not be exposed because the flash is only lasting 1/600.
FP Sync forces the flash to last longer allowing for high speed sync. I think, someone else correct me if I am wrong.
Posted 3 years ago #
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