Sorry but color CCD digicams use exactly the same technology as scanners in most cases. The only interpolation they do is if they are capable of producing a result that has higher res than the number of actual pixels in the CCD grid. Which is exactly how a 1200x2400 pixel/dot scanner can come up with an interpolated scan that is 9600x9600. By the way in the latest product news from Fuji they say that generally (without specifying the film) a 35mm snapshot has about 6 MP of info that can be mined out of it with even the best scanners. This is when comparing it to their 6900 digicam that has a 6 MP interpolation mode. I know at some point a higher and higher dpi film scanner will get no more real data out of a negative/slide but just interpolation of the areas between the grain. However I was under the impression the amount of data on a 35mm frame was higher. So either they are fudging so as to place themselves correctly in the digicam world or they are correct and maybe downplaying the actual data content of their own film to move towards a digital world. Kent Gittings
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Doug Franklin Sent: Friday, December 21, 2001 10:24 PM To: [EMAIL PROTECTED] Subject: Re: DPI vs. PPI On Fri, 21 Dec 2001 18:50:24 -0700, aimcompute wrote: > I have noticed that scanner mfr.'s use the term interchangeably. For > instance Minolta lists their scanner resolutions in dpi. I've always thought of it as "pixels" each have all of the color vectors (R, G, and B, or C, M, Y, and K, or whatever), whiles "dots" have only one color vector. Sort of like the difference in color scanner sensors and digicam sensors. The color scanner samples all of the colors at each pixel while the digicam (generally) only samples one color at each pixel, then interpolates the other colors. Printers generally get described in "dots" while scanners and monitors in "pixels". YMMV TTYL, DougF - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org . ********************************************************************** This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This footnote also confirms that this email message has been swept by MIMEsweeper for the presence of computer viruses. www.mimesweeper.com ********************************************************************** - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
