There is no "fair" resolution comparison because the systems are so different.  
There is chemical information on a larger negative wich cannot be duplicated on 
digital because it is simply not present.  Likewise, digital information takes 
to enlargement much better than does film (in most instances).

A 12MP dslr, APS-C size, will be about 3K DPI.  Scan a 6x7cm neg @ 3Kdpi and 
you will have more information available than there is from the DSLR.  
Likewise, place the digital information on film via a film recorder and you 
will have a lower grade image.

IOW, while the large film neg has better/more information it is more difficult 
to manage for enlargement.  Now, if you would shoot 8x10 or 11x14 and do a 
contact print -- then you would be tempted forget digital.

There is a reason why a number of pros will shoot reversal and then drum scan 
for digital manipulation.  It makes sense.

Sincerely, 

Collin Brendemuehl 
http://kerygmainstitute.org 

"He is no fool who gives what he cannot keep to gain what he cannot lose" 
-- Jim Elliott 






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