8MP vs 6MP is simple to calculate in terms of larger print sizes while maintaining same image quality your print can now be ~15%
wider AND ~15% taller with same absolute (dpi) quality level. If aspect ratio wasn't locked it would be > easy to see the gain. You
could make a print 33% wider, just like HDTV is 33% wider than the old 4x3 SDTV.
I don't know how you can come up with "1 inch bigger" without specifing the original. and it would never be 1 inch bigger in BOTH
dimensions if he aspect ration doesn't change it would be 1 inch bigger on one dimension and 1.5 inch bigger on the other
or 0.666 ich bigger on the other. Cant be 1" on BOTH dimesions with same aspect ratio.
As and example if you had 6Mp 4x6 print, with 8MP you could do roughly a 4.5 by 7 inch print with same absolute dpi.
but if you start with 8x12 print, then obviously the 8Mp could do 9 by 14.
John,
I think you are operating under the misundertanding that all pixels are created equal. As the article I posted recently indicated CMOS pixels and CCD pixels are not really comparable on a one-to-one basis. In the real world, you've got to take the pictures, make the enlargements, print them and compare. I've seen lots of situations where a 4MP digicam produced pictures that certainly weren't 1/3 better than those produced by a 3MP digicam (same manufacturer and lens). In some cases, they weren't measurably better. I guess we'll have to see production versions (and how they marry with their lenses) before we'll really know.
It's sort of like asuming that all lenses with similar specs from different manufacturers are equal. I KNOW you know better than that.
Larry in Dallas
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