Epson Flatbed Scanners Outperform Competition for Dynamic Range

  • Thread starter Thread starter hdntrzrs
  • Start date Start date
http://www.ng2000.com/news.php?tp=scanners

When it comes to reproducing the highest level of shadow detail and
mid-range gray values as quantified by optical density (OD), Epson
scanners outperformed competitors in a recent National Software Testing
Labs (NSTL) study.
Click to expand...
What's your point here?

That article is clearly biased, and what's more, the links to NSTL and
Epson in the article both come up as deleted.

To claim that *all* Epson scanners have a Dmax of >4 while *all*
competing models have Dmax's of 3 or less is pure bullshit.

If this garbage is all you can find to post, then sell your computer and
save bandwidth.

Colin D.
 
Thanks, that was an interesting link. I'd be curious to see exactly
which scanners were tested and I wonder if it would be possible to do
our own tests with a similar methodology (Scanner bakeoff, are you
there?)
Roger
 
http://www.ng2000.com/news.php?tp=scanners

When it comes to reproducing the highest level of shadow detail and
mid-range gray values as quantified by optical density (OD), Epson
scanners outperformed competitors in a recent National Software Testing
Labs (NSTL) study.
Click to expand...

I found that amusing: ""Optical density is really the true measuring
stick for understanding how well a scanner can reproduce varying degrees
of shadow and noise detail and a big factor in overall image quality.""

Pure marketing spin. No lies, only the truth painted out to be more
meaningful than it really is...

Cheers,
Alan
 
On Dec 3, 10:56 am, Alan Browne <[email protected]>
wrote:
I found that amusing: ""Optical density is really the true measuring
stick for understanding how well a scanner can reproduce varying degrees
of shadow and noise detail and a big factor in overall image quality.""

Pure marketing spin. No lies, only the truth painted out to be more
meaningful than it really is...

Cheers,
Alan
Click to expand...

Don't you think that's one of the more important things to know about a
scanner but where almost no meaningful comparisons exist? There are a
number of resolution tests floating about and anecdotal evidence about
dynamic range (and manufacturer hype) but where are the solid dynamic
range tests?
 
Roger said:
On Dec 3, 10:56 am, Alan Browne <[email protected]>
wrote:
I found that amusing: ""Optical density is really the true measuring



Don't you think that's one of the more important things to know about a
scanner but where almost no meaningful comparisons exist? There are a
number of resolution tests floating about and anecdotal evidence about
dynamic range (and manufacturer hype) but where are the solid dynamic
range tests?
Click to expand...

The article presented was pure PR pointing out the one area where the
Epsons are better and ignoring the area where Epson are demonstrably
weak: resolution. If I were a LF shooter, I would probably have to
content myslef with an Epson...

IOW: the difference between Epson and others for dynamic range is tiny,
with Epson on top; the gulf between Epson and dedicated film scanners
for resolution is large with Epson on the bottom.

Cheers,
Alan
 
Colin_D said:
What's your point here?

That article is clearly biased, and what's more, the links to NSTL and
Epson in the article both come up as deleted.

To claim that *all* Epson scanners have a Dmax of >4 while *all* competing
models have Dmax's of 3 or less is pure bullshit.

If this garbage is all you can find to post, then sell your computer and
save bandwidth.

Colin D.
Click to expand...
I have no idea of the credibility of NSTL, and the report was done
for Epson, it is available here:

http://www.nstl.com/reports/scanner_report_sep192006_4890correction final 9-06.pdf

It does include methodology, and results for a number of flatbeds.
It does not claim that all Epson's achieve Dmax>4.

Regards
Ian
 
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