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Old Aug 29, 2006, 2:38 PM   #11
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look pictures Sigma SD14
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Old Aug 29, 2006, 4:46 PM   #12
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Sounds good! I'm looking forward to a full review.
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Old Aug 29, 2006, 6:03 PM   #13
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nope
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Old Aug 30, 2006, 6:05 AM   #14
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The SD9 and SD10 are effectively 4/3 cameras now, minus the lens mount compatibility,theyare alreadyheavily invested in that basic focal range.
What do you mean by " effectively 4/3 cameras now"?

Are the image sensors 4/3 like Olympus then?

Thanks for all the great post BTW. It was all very interesting.
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Old Aug 30, 2006, 7:23 AM   #15
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BenjaminXYZ wrote:
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The SD9 and SD10 are effectively 4/3 cameras now, minus the lens mount compatibility,theyare alreadyheavily invested in that basic focal range.
What do you mean by " effectively 4/3 cameras now"?

Are the image sensors 4/3 like Olympus then?

Thanks for all the great post BTW. It was all very interesting.
The electronics PCB holding the sensor inside the SD9 and SD10 is a 1.5 crop template, but after Foveon got done with production, the actual sensing area on the silicon is smaller. Only 20.7 mm wide instead of 24mm wide for a true 1.5x crop. That is very close to the usual 4/3 format which is 18mm wide. Interestingly, not only is the sensor a little smaller than the temple, it is a few mm'soff-center as it sits in the camera.
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Old Sep 19, 2006, 3:37 PM   #16
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Actually the SD9, SD10 and SD14 Foveon sensors areclassed as"APSc" sized sensors, which arebigger than4/3rds sensors.

Although the difference insize seems very minimal its enough togive theFoveon sensora 1.7x crop whilst4/3rds has a 2x crop.

Again, the differencein the crops may seem fairly small but it canadd up to a big difference in the FOV you get for a given FL lens.

For instance,if you fit a 50mm lens to a Sigma DSLR it will givethe same FOV as an 85mm lens on a 35mmformat camera (Full frame)and a 50mm lens on a4/3rds DSLR will give the same FOV as a 100mm lenson a 35mmformat camera...So to get the same FOV as a Sigma DSLR the 4/3rds DSLR must use a lens that is30% wider.


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Old Sep 19, 2006, 11:11 PM   #17
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aquatarkus wrote:
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No i think you might be wrong there, Sigma have stated that any new DSLR will use a Foveon sensor. Foveon have been rumoured to have been working on a new sensor for the last couple of years so with PhotoKina coming up we might finally see something but i wouldn't hold my breath. Quite how Foveon will / has ever made any money from such small sales is still open to question but think the companies that back them (National Semiconductor) has very deep pockets and is not looking for a quick profit but is looking at a long term investment. Foveon has also been rumoured to be working on camera phone sensors along with the company thats developing the liquid lens.

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Old Sep 19, 2006, 11:12 PM   #18
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steve wrote:
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I would not be surprised if the SD11 or whateverSigma calls it uses a Sony CCD sensor, I think Foveon is a financial gonner these days. You can create a great sensor but can you market it against the power and numbers of the likes of Sony? The cost to develop and market a new digicam is kept minimal by using readily available components and next to the imager the main processingboard is a costly piece of the puzzle. Most companies buy the Coach processingboard which is ready to use a Sony CCD. Sony can also make quantity purchase discounts that others could not afford to offer just to keep the market cornered.

How do you like your crow cook?


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Old Sep 21, 2006, 10:56 PM   #19
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DSG wrote:
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Again, the differencein the crops may seem fairly small but it canadd up to a big difference in the FOV you get for a given FL lens.

For instance,if you fit a 50mm lens to a Sigma DSLR it will givethe same FOV as an 85mm lens on a 35mmformat camera (Full frame)and a 50mm lens on a4/3rds DSLR will give the same FOV as a 100mm lenson a 35mmformat camera...So to get the same FOV as a Sigma DSLR the 4/3rds DSLR must use a lens that is30% wider.

Right. The actual Foveon crop factor is 1.748 which sitsexactly in the middle of a 1.5x crop DSLR and a 2xcrop 4/3 DSLR.
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