Better is a relative term. Generally higher dpi (technically it should be spi or samples per inch and not either dpi, dots per inch, or ppi, pixels per inch) will produce a higher resolution and sharper image than lower amounts of samples per inch. One has to be careful in making comparisons about two main things. First, there is the meaning and accurracy of the specs which the manufacturer gives for their units since different manufacturers use different measurments and critera without making it clear exactly what they are using. And secondly, there is the issue of whether one is using optical resolutions or interpolated resolutions, wherein optical resolutions are th more significant and reliable resolutions when compared to interpolated resolutions. Thus, a 300 spi optical scan may be better than a 600 spi interpolated scan.
1600 X 2400 pixels designates an output size in pixels not a resolution. Resolutions are always stated in terms of x per inch. I realize that Microsoft and others call the moniotr display sizes such as 1600 x 2400 display resolutions but they reallyu are talking about the display size not the reolution per se. The only time the resolution related to display size is when the display is on a monitor as opposed to a print, where the same resolution can produce different sized monitor display images depending on the size of the monitor and the size of the monitor disply it is capable of in terms of pixels. [EMAIL PROTECTED] wrote: > I'm a bit perplexed at what the dpi means on a film scanner. Trying to > compare apples to apples, will a 4000 dpi Brand X film scanner in > theory > produce a better quality image outputted than a 2000 dpi Brand X > scanner, > given that the output resolution is the same, say 1600 x 2400 pixels? > > Or does it simply mean the 4000 dpi scanner will output a much larger > image than the 2000 dpi model? > > Thanks for clearing this up, > Bill > > > -------------------------------------------------------------------------- -------------- > Unsubscribe by mail to [EMAIL PROTECTED], with 'unsubscribe > filmscanners' or 'unsubscribe filmscanners_digest' (as appropriate) > in the message title or body > > > --- > Incoming mail is certified Virus Free. > Checked by AVG anti-virus system (http://www.grisoft.com). > Version: 6.0.622 / Virus Database: 400 - Release Date: 3/13/2004 --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.622 / Virus Database: 400 - Release Date: 3/13/2004 ---------------------------------------------------------------------------------------- Unsubscribe by mail to [EMAIL PROTECTED], with 'unsubscribe filmscanners' or 'unsubscribe filmscanners_digest' (as appropriate) in the message title or body