Scanner: 1200dpi vs 2400dpi

  • Thread starter Thread starter Man-wai Chang
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Man-wai Chang

Could unaided eyes see their differneces?

I am considering to buy a Canon LiDE 110 to replace my old Canon LiDE 70....

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Could unaided eyes see their differneces?

I am considering to buy a Canon LiDE 110 to replace my old Canon LiDE 70....
Click to expand...

Probably not if you stick to printing $20 bills.
 
Man-wai Chang said:
Could unaided eyes see their differneces?

I am considering to buy a Canon LiDE 110 to replace my old Canon LiDE
70....
Click to expand...

A web site like this, can help you.

http://www.normankoren.com/Tutorials/MTF8.html

If you're as enthusiastic as that person is, then a different
scanner can help. But high resolutions are most important, when
you're printing the final image very large (like a banner to cover
the side of a building). If your eventual target is wallet sized
photos, a new scanner would be a waste of money.

http://www.normankoren.com/Tutorials/MTF8.html

To estimate the improvement, try using the existing scanner,
scanning at 600 DPI and scanning at 1200 DPI. Make your final
images the size you expect to use them at. Can you spot a
difference ? If not, then 2400 DPI would be a waste.

Obviously, if you zoom into a scanned image, so you can look
at individual dots, of course you'll see a difference. But that
isn't typically how you enjoy photographs - under the microscope.

Paul
 
A web site like this, can help you.

http://www.normankoren.com/Tutorials/MTF8.html

If you're as enthusiastic as that person is, then a different
scanner can help. But high resolutions are most important, when
you're printing the final image very large (like a banner to cover
the side of a building). If your eventual target is wallet sized
photos, a new scanner would be a waste of money.

http://www.normankoren.com/Tutorials/MTF8.html

To estimate the improvement, try using the existing scanner,
scanning at 600 DPI and scanning at 1200 DPI. Make your final
images the size you expect to use them at. Can you spot a
difference ? If not, then 2400 DPI would be a waste.

Obviously, if you zoom into a scanned image, so you can look
at individual dots, of course you'll see a difference. But that
isn't typically how you enjoy photographs - under the microscope.
Click to expand...

But sometimes we want to enlarge and print a small part of an old photo.
When that happens, the higher rsolution can be very useful.
..
 
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