Funny I was reading about the aperture program this morning, wow the system specs seem pretty high. There is some debate whether allowing users to directly edit RAW files is a good idea, however as it states the original file is not edited so I dont see a problem with it, unless there is something that I dont know or understand (probably lol) I guess though that the final image would yield a superior quality edited from the RAW file (speculation) My main concern would be can you dump mistakes easily or would you have to start over from the Original RAW file. Personally I dont use Mac so I dont know enough to pass comment on whether these sys specs are necessary. Also I am happy with the PS workflow as it is. As for the 39MP digi back, now I dont know much about that either, but would think that this would be approaching a 100MB 8bit TIFF final image (huge) not to mention trying to work on it without a massive/tiled monitor lol What I do know is that pixel density plays a big part with image quality, so more pixels does not necessarily mean better images but the size of the pixels may, smaller pixels let in less light so the tonal range may be reduced. Anyway I wonder what the physical limit on MP is for a given sensor size. Some have speculated that even from a compact sensor 45MP is possible. Better buy a consignment of memory cards in that case lol, and another 10 200Gig hard drives etc. I have just got a Canon 20D (swap out replacement for the 10D) which puts out 23MB TIFF which are already big to work on. Not had time to play with it properly yet. Simon

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