Dear Ben
Incidentally one other factor regarding the remarkable performance of the D700 in terms of digital noise is that the metering is simply superb. The matrix has become so sophisticated that it is hard to better it with a spot meter. This means there is less processing induced noise at the outset. Clearly the metering in an M is pretty good centre weighted but is never going to compete on metering.
Richard
I'm sorry but I have to laugh when I here all the cr@p about matrix metering and so on. Obviously you shoot in Av, Tv, or P. Most good pro's I know shoot in manual 99% of the time and don't worry about how many stupid zones a camera uses to meter. An exposure is an exposure and no matter how many zones you have it's still just a combination of shutter and aperture.
...and don't get me started on 'exposure compensation'. More like 'user compensation'. So the theory is that, when you know your camera is going to under or over expose, you 'compensate'?
Say what!?!?!?
It defeats the purpose of a camera that does everything for you, right?!?! So now you ask what do I have against using semi-auto features like Av, Tv or P?
1. You can take 10 shots in the same light at different angles and the camera will probably choose a different exposure, because it changes according to what it sees in the background, like light or dark colours, including clothing.
2. When you know the camera is going to be bad, you compensate by dialing in +1/3 etc etc.
3. You then complain on forums like this saying that the metering system in my camera has 5200000000 zones and still doesn't know what exposure 'I want'....plus it doesn't cook or clean!
Let me explain this for those who will flame me. All great photographers who want consistent results shoot or need to shoot in manual. It is a photographer's 'responsibility' to set a correct exposure according to their desired result, say silhouette or not.
If you're working under changing lighting conditions, you need to anticipate potential lighting changes before they happen, calculate the stop difference and change exposure when needed. this way you are 100% responsible for your results and therefor can't blame a camera. Example. You're shooting a wedding and following the bride and groom down the aisle and out the church doors. The stop difference can be as great as 5 stops or so. Som, before the wedding starts, you take a reading outside. Then take a reading inside. Now just before you go out the door, you change the ISO/exposure accordingly to the reading you pre calculated earlier.
This may sound like a lot of work, but, it will guarantee you better, consistent results, and you are responsible for the result, and then won't blame the camera later.
For Pete's sake, we now have digital. At least put it in an auto mode, see what the camera is telling you (exposure/shutter), then use that as a starting exposure. Take a picture and change accordingly from there in Manual mode. How hard is that?
Then you say "well I shoot RAW so I can post process any mistakes I make in the field". My response is "so be it".
Flame away if you must, but this is the advice I give to all aspiring photographers because it's what I've been taught and it has been the most valuable technique one can learn. I know people hate to be lectured like this but I'm sick of seeing people blaming their camera's because it doesn't get it perfect all the time. So, back to the topic, the exposure meter in the M9 is more than enough for those somewhat competent.