I still use my several-years-old Epson 2450 for print work. If you  
can capture 16bit color or grayscale data from 5x7 to 8x10 sized  
prints at 600 ppi, that's more than enough to do anything. After much  
testing, I am happy that it seems to max out at a realistic 1600 ppi  
actual resolution (nominally it makes 2400 ppi optical).

I have an Epson V700 also, for scanning medium format and odd sized  
larger film. It does virtually the same job on prints as the 2450,  
hard to tell the difference. Its max is about 2600 ppi (optical  
supposed to be 4800), a healthy improvement on the 2450 for negatives  
but inconsequential when it comes to print scanning.

(Both the old Minolta Scan Dual II and the Nikon Coolscan IV ED  
return much better resolution for 35mm and smaller film formats: both  
achieve their rated 2820 and 2900 ppi scan resolution accurately.)

Godfrey


On Dec 13, 2007, at 8:05 AM, Walter Hamler wrote:

> I currently have a Canon Canoscan that I have had in service through 3
> different computers and three different OS. It works from inside PSE
> and does what I want, but now I am looking at doing a favor for
> someone, scanning some old family pics that may need some TLC as far
> as post processing and scanner capability.
> Question : Will I really see a big enough quality increase from a new
> scanner compared to this 5 or 6 year old Canon? And if so, what are
> some recommendayions?  I don't really want one that does slides/negs
> as well, as I have a good film scanner. I also would not really want a
> high end version if a 150.00 one will do just as good.
>

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