I want to know about D30 image quality, Is it possbile for A4 magazine
publish. who had try to use the file to color separation.
Ming,
I don't have any personal experience with publishing in magazines, but I have a LOT of experience with digital darkroom software and digital photography owing to some other pursuits.
IN MY OPINION, based solely on the D30 sample images I've seen published so far, knowing what you can do with Photoshop, knowing software for upsampling such as Genuine Fractals exists, and finally, seeing how well other cameras do/don't do in magazines and for 8 x 10 printing, I'd say YES, the D30 WILL do 8 x 10 images (or thereabouts) well enough for publication.
Will they equal the best scans of the best film? No.
With a good driver at the software helm, will you be able to make images attractive enough to publish? In my opinion, Yes.
The above is just my opinion, based on my world, but know this: As a serious amateur considering pro work, I'm impressed by the D30 and will likely be ordering one very shortly.
-Noel