John Francis wrote:

> On Tue, Aug 29, 2006 at 09:24:20AM +0200, Jostein ?ksne wrote:
> 
>>AFAIK, many of the MedF digitals achieve larger sensors by combining
>>more than one CCD. When doubling the area of a sensor means a tenfold
>>increase in cost it makes me wonder what kind of potential there may
>>be for cost reduction in the surrounding circuitry.
> 
> 
> None, to all intents and purposes.
> If you look at the amount of support circuitry on a sensor
> (other than the per-pixel stuff, which needs to be there
> no matter hom many individual pieces the sensor is made of)
> there's hardly any - a few latches, and the A-to-D logic.
> Having, one, two, or four copies of those circuits is at
> most going to add a few pennies to the total cost.

I thought a few pennies was the reason we can't have a fully functional 
aperture ring on the DSLRs.

> 
> 
>>Aligning two CCDs comes with it's own set of problems, I guess.
>>
>>Jostein
>>
>>
>>
>>On 8/29/06, Takeshita K <[EMAIL PROTECTED]> wrote:
>>
>>>Nevertheless, my understanding is that the cost of the FF size
>>>sensors is at least 10 times (or more)  that of the APS sized one,
>>>and this gap is not going to narrow any time soon.
>>
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> 
> 


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