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01/30/2008 03:00:42 AM · #1 |
Sony have released details on their new full frame sensor.
The new 25 megapixel CMOS sensor ensures the race is still on in earnest.
Sony 25mp CMOS sensor
bazz. |
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01/30/2008 03:04:48 AM · #2 |
Interesting that it's a 12-bit sensor... would expect they would have gone 14-bit to keep up with the Jones', especially if Nikon is the likely customer.
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01/30/2008 06:43:18 AM · #3 |
This part caught me eye:
"However, there are a number of technical challenges to developing full (large) size image sensors, such as the propagation delay caused by using extended power circuitry and signal lines, and the difficulty of maintaining uniform sensitivity and signal saturation across the surface of the screen.
Furthermore, because current semiconductor exposure systems are unable to cover the entire chip surface of 35mm full size CMOS image sensors, multiple exposures are required. This results in the difficulty of accurately controlling exposure variance and matching circuit patterns."
What?!? Does that mean that when you press the shutter, it actually does multiple exposures at once, in order to read the entire sensor? Does this affect high shutter speeds (or the quality of fast moving subjects) at all? Are the Canon full frame sensors having to do the same thing? |
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01/30/2008 06:49:21 AM · #4 |
Originally posted by dwterry:
This part caught me eye:
"However, there are a number of technical challenges to developing full (large) size image sensors, such as the propagation delay caused by using extended power circuitry and signal lines, and the difficulty of maintaining uniform sensitivity and signal saturation across the surface of the screen.
Furthermore, because current semiconductor exposure systems are unable to cover the entire chip surface of 35mm full size CMOS image sensors, multiple exposures are required. This results in the difficulty of accurately controlling exposure variance and matching circuit patterns."
What?!? Does that mean that when you press the shutter, it actually does multiple exposures at once, in order to read the entire sensor? Does this affect high shutter speeds (or the quality of fast moving subjects) at all? Are the Canon full frame sensors having to do the same thing? |
NO NO NO, this exposure term here is related to the sensor implementation. In layman's terms when you press button now the processor takes an action, lets call it exposure. Now imagine that the whole sensor is divided into 5 -6 parts and each part is handled by different parts of processor and they simultaneously take that 'action' on the parts. Its more like parallel processing stuff.
This is what I believe would happen and they mean by multiple exposure.
(I might be wrong because the details of implementation at the moment are very fuzzy).
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01/30/2008 06:55:01 AM · #5 |
Originally posted by dwterry:
This part caught me eye:
"However, there are a number of technical challenges to developing full (large) size image sensors, such as the propagation delay caused by using extended power circuitry and signal lines, and the difficulty of maintaining uniform sensitivity and signal saturation across the surface of the screen.
Furthermore, because current semiconductor exposure systems are unable to cover the entire chip surface of 35mm full size CMOS image sensors, multiple exposures are required. This results in the difficulty of accurately controlling exposure variance and matching circuit patterns."
What?!? Does that mean that when you press the shutter, it actually does multiple exposures at once, in order to read the entire sensor? Does this affect high shutter speeds (or the quality of fast moving subjects) at all? Are the Canon full frame sensors having to do the same thing? |
It has to do with the "printing" of sensor pattern onto a wafer to create the sensor.. not the exposure of the sensor on a camera.
See here and here. |
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01/30/2008 07:28:52 AM · #6 |
Originally posted by nikolaos:
It has to do with the "printing" of sensor pattern onto a wafer to create the sensor.. not the exposure of the sensor on a camera. |
AHA! Now that makes sense. |
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01/31/2008 12:43:22 PM · #7 |
Originally posted by sir_bazz:
Sony have released details on their new full frame sensor.
The new 25 megapixel CMOS sensor ensures the race is still on in earnest.
Sony 25mp CMOS sensor
bazz. |
In production by the end of year...new A900 will use this sensor.
DPReview - PMA 2008: Live from the Sony Press Event
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09/04/2008 02:08:40 PM · #8 |
Looks like the A900 is just around the corner...
A900 Ad Leaked
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09/04/2008 02:35:51 PM · #9 |
| Now the buzz is how much and exactly when? $2500-$3000 is the number currently being tossed around. |
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