Originally posted by falconeye
D3X, D3s, D700:
D3X is the only camera which needs to exist. But because Nikon prefers to maximize profit, they made two crippled versions: D3s in resolution and D700 in resolution and ergonomics. D3X and D700 have about the same age and almost identical low light performance. The D3X has much better (1.5EV) dynamic range though. The D3s is a newer camera. It still has the lower dynamic range (compared to D3X), but has a slightly improved low light performance (about 0.5EV better) than both D3X and D700. Pixel size has nothing to do with that.
D3X: $7400
D3S: $5200
D3: $3600
D700: $2300
I, for one, am extremely glad Nikon has stratified it's FF offerings to allow choices between more MP/resolution vs. faster performance and smaller files. I would not be able to justify spending $7500 on a DSLR body. If you're implying that Nikon could simply charge $2300 for a D700 body with a D3X sensor and remain profitable - but don't want to - you may have a compelling argument, but I don't think those sensors cost the same to produce. And if Nikon got out of the sub-$2500 FF market and put out a single, split-the-difference $5000 body with the D3X sensor, they'd lose a lot of revenue, otherwise they would have done it already.
The charts on that Dxo site clearly show the per-pixel noise advantage of the lower-res FF sensors, but accurately point out that when normalized (or printed,) there's very little difference in SNR and you gain in other ways by having higher-MP.
But a $2300 body that gets you better pixel-level noise and about the same 'normalized' SNR as a $7500 body is a sweet deal for consumers. I have yet to 'need' more than 12mp is just about anything I've ever shot or printed large, although low-ISO cropping could be a real advantage for most folks.
Quote: Ad 1. They are. Pentax 645D should beat any non MF camera in low light. I already guesstimated (and posted) figures from available data.
I seem to recall reading the opposite - where have you posted this, I'd like to give it a look, thx.
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