Hi Mr Shaun Canning,
this is Tom from Brunswick/Germany and I read the very interesting gigapixel-discussion on PDML. (As I often read there, but I'm not member of the list...perhaps I should change that???)
I wondered there, why nobody made a simple calculation like this:
(Assuming, that there are some similar effects to the Nyquist-theoreme on sampling frequencies (The sampling theorem assumes that you are sampling a band-limited signal, monochromatic here. Thus, the highest possible frequency signal through any two points would be a sinewave at 1/2 the sampling rate.))
So - if we're after 800nm wavelength (which is infrared already ), we would need at least a 1,6 �m sensor - 625 sensors per millimeter. (Pixels in modern sensors for digital imaging in microscopy are at 3,45 �m in the Leica DC300 for example, so we're not that far away from it!)
On a 24x36mm array these would be 22500 x 15000, or 337 Million. Roughly 900 Million for 645 MF, or 1,5 GPix for the 6*7 medium format.
Impressing, isn't it?
Perhaps you could post this, to see what objections they have.
Have a nice day, greetings from Germany
Tom
I never said the gigapixel sensor would be in a 35mm format now did I?
;-)
Cheers
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