maybe not a dull question?...

[neeko]

Hi from Paris (FRANCE) and thanx for your very interesting site!

If I understand well, a 600x1200 DPI scanner does scans at an average of 900 DPI at the maximum value? (1200+600... divided by 2)

Or.. are the dots not exacly square? maybe like a rectangle?

So If I scan a 6cm by 6cm negative of a Hasselblad camera whith a 600x1200 scanner... how much dots (pixels) am i going to obtain?

600x600? 900x900? or 1200x600??

See you soon and Merci for your answer!!

[Guest]

viva la france, u get 600X1200!
but u'll need at least 2700X4050pixels and 3.6D for scanning 35mm film!

[neeko]

Thanx, but you don't really answer to my question!...

Take care anyway....

Who has a more precise answer for me pleeeeeaase?

[Paul Escudier]

A 600x1200 scanner is best used at the 600dpi setting at an enlargement factor of 100%. This will give you the optimum quality as using the 1200dpi setting relies on interpolation in one direction. A 6x6 original would give you a file, if scanned full frame, of about 5.5mb which is about 1400 pixels square.

[neeko]

thank you Paul!

[Guest]

Dual-resolution scanners scan symmetrically. If you use a 1600x3200 scanner at 3200, you get a 3200x3200 file. It is interpolated in the long axis, but the picture quality is noticably better, especially for 6x6 film. Flatbed scanners seem to be noisy, so multiple scans are very helpful.