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Old Feb 12, 2008, 3:44 PM   #1
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Can anyone explain why the camera with the smaller lens is capable of a higher ISO; the Z1085 IS captures at an ISO up to 3200 at 10MP, the Z1012 IS can only capture up to an ISO of 1600 at full resolution.
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Old Feb 12, 2008, 7:14 PM   #2
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High ISO is achieved just by amplifying the signal from the sensor. How much magnification of the signal you can tolerate is a matter of taste, rather like how much magnification of an image you can put up with. The more you do it, the worse the quality, because you amplify the noise as well as the image data.

So what levels of high ISO they choose to put on a camera is an arbitrary decision of the designers & programmers, probably in consultation with the marketeers, I'd guess.
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Old Feb 13, 2008, 12:17 PM   #3
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The Z1085 likely has a larger sensor. We'll know for sure when Kodak releases the specifications.
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Old Feb 13, 2008, 4:56 PM   #4
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Based on the 35mm equiv. focal lengths of the lenses I think the 1085 likely has a 1/1.72 sensor and the 1012 has a sensor just a bit larger than 1/2.5 giving the high ISO/noise advantage to the 1085.
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Old Feb 14, 2008, 7:25 AM   #5
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Kodak's description doesn't say what kind of sensor it has or how many full frames per second it will take in continuous mode. Could this be their first camera with a CMOS sensor?
We can only hope.
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Old Feb 14, 2008, 11:38 AM   #6
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leroyvanhee wrote:
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Kodak's description doesn't say what kind of sensor it has or how many full frames per second it will take in continuous mode. Could this be their first camera with a CMOS sensor?
We can only hope.
I'm guessing not or they would already making noise about it. The 1012 does seem to have a slightly larger sensor than the 1/2.5s used on the previous 12x Z series cameras (Z612/Z712/Z812). I say that because that lens on the Z612 is 35-420mm equiv. and 36-436mm for the Z712/Z812 (suggesting a slightly smaller sensor on the those cameras). The Z1012 equivalency is 33-396mm,therefore a larger sensor.

The really anomalous camera of the new ones in my opinion is the Z8612. While the 12x lens shows the same general characteristics as the other 12x lens (f2.8-f4.8, 36mm-436mm) it is a different lens as evidenced by the availability of the wide-angle lens meaning the lens does not move when zoomed.
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