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Digital BW, The Print

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Re: [Digital BW] Re: Scanning b&w negs, revisited

2010-07-06 by Ernst Dinkla

Michael schreef:
> Thank you Tony, Lincoln and others. What is getting lost is my
> original question: "The question I have is how do I best evaluate -
> on screen - scans of the same frame made at two different
> resolutions?" Before you say to view at actual pixels, I know that
> part of the answer. But I think it's more complicated than that.
> Viewing a 6 foot length of tree branch at actual pixels from 2
> differently sized scans makes that same length of branch different
> lengths, in inches, on the screen. This makes it hard to look at the
> same section and make a direct comparison. It the lower rez scan is
> magnified beyond actual pixels then interpolation(?) from software
> becomes an issue. But without a same sized, side by side comparison
> of the two scans, how do I best evaluate them?
> 
> 

Set the largest file at pixel view. Scale the smallest one so it matches
the detail size. Roll back your chair backward and forward. Set "Zoom
all windows" and zoom both windows in and out simultaneously. If there
is no difference to be seen then there is no difference.

-- 
Met vriendelijke groeten,   Ernst

Try: http://tech.groups.yahoo.com/group/Wide_Inkjet_Printers/

|      Dinkla Grafische Techniek      |
|         www.pigment-print.com        |
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