Will packing more sensors in the same size space in the new Sony F828 have any negative effect when enlarging the image from that sensor?

Well, if you take a look at the early samples that Sony Japan posted back in the middle of September, you might notice quite a lot of noise:

http://www.photographyblog.com/comments.php?id=P841_0_1_0_C

But is the noise due to sensor size or Sony's new "emerald" technology?

I think it's almost certainly due to trying to squeeze all those megapixels into that small sensor size. As far as I know the new 4-colour sensor technology only affects the, well, colour!

Hello: I'm new here but I figured out that if you had the same pixel density as a the 828 on a full-frame (36x24mm) sensor you would have over 116 megapixels so I have to assume that the noise is a result of the pixel density rather other factors. If you think about it, that's an enormous jump from the pixel count on the Canon 1Ds which has some noise of its own (even though it's still better than film).

It's just my opinion, in any case.

Yeah, the noise is from the small sensor size. Take the G3[/url vs [url=http://www.dpreview.com/reviews/canong5/]G5 for example. They both have the same size sensor (7.2mm x 5.3mm) but the G5 has a greator photosite density.

More photosites densly packed together = more heat = more noise.

The 4th color may be spank-a-rific but for the cost, I'd get a better camera like the 300D.

Hi to All

Not too sure if the noise is any worse than many other 2/3" sensor cameras. We also don't know what the camera settings were on the sample image (may have been ISO800!) so will have to wait for production models to tell.

Noise may well be increased if the photo receptors are materially smaller than those of say a 5Mp 2/3" sensor. The camera has an internal clock humming away with a square wave, and a multitude of digital circuits active during exposure, so noise is more likely a result of interference than a function of adjoining pixels. If the pixel size is reduced, the voltage / current output is reduced, making the signal proportionately closer to the noise floor, increasing the perception of noise.

Unfortunately, it looks like we will be waiting into January for these cameras from what I have seen.

Chris

According to my original post on the F828 sample images, they were both taken at ISO 100:

http://www.photographyblog.com/comments.php?id=P841_0_1_0_C

Yes its the best