[filmscanners] Re: Aztek Premier 8000 dpi scan.

2007-07-21 Thread gary
I think a better comparison would be the Aztek against a dedicated film
scanner, not a flat bed. It is clear to me there is a focus issue with
the Epson.

R. Jackson wrote:
 I thought some of you might enjoy seeing this. I went down to
 Petaluma today and Lenny Eiger introduced me to scanning with a drum
 scanner.

 http://www.eigerphoto.com/

 I essentially got a crash course in the practicalities of drum scans
 from someone with a lot of practical experience in making them. I've
 been all ripped-up this week about my cat having liver failure (I
 buried her last night) and I'd mis-read Lenny's email about bringing
 something *not* too challenging for a first scan. I glanced through
 some boxes of 30-year-old Ektachrome quickly last night and brought
 along a slide taken inside a van.  There's a window on the verge of
 being blown out and an interior that was so deeply in shadow that it
 was almost black. Something taken in a band vehicle a long time ago
 of a drummer napping. Before I left this morning I'd scanned the
 slide at the 6400 dpi setting on my V700. Lenny scanned it at 8000
 dpi on his Aztek. I've uploaded both a lossless .jpf and a jpeg. The
 jpeg actually looks pretty close to the same as the jpf and it's one
 meg instead of seventeen, just FYI. You can see them here:

 http://homepage.mac.com/jackson.robert.rex/

 These are 100% crops. The V700 on top, obviously. I scaled the V700
 scan up to the 8000 dpi so it would be the same size as the Aztek
 scan. It's amazing how much more detail the Aztek pulled out of the
 slide. And this was a ratty old Ektachrome 400 slide. I can hardly
 imagine what well-exposed 6x7 or 4x5 would yield under the right
 circumstances. One of the most telling things to me is the etched
 printing on the window. You can almost read it in the Aztek scan. And
 see the area on the right side of the window frame? The Epson scan
 has some kind of strange artifact going on. The edge of the window
 all the way down through the curve at the bottom looks very strange.
 On the Aztek crop it looks very natural and smooth. It's amazing,
 really. Almost too much detail.

 Lenny is a gentleman with a genuine enthusiasm for what he does and a
 great wealth of knowledge and experience to guide him. You couldn't
 ask for a better demo of the technology. I'm really happy to know
 he's just down the road.

 -Robert Jackson





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[filmscanners] Re: Aztek Premier 8000 dpi scan.

2007-07-21 Thread R. Jackson

On Jul 20, 2007, at 11:23 PM, gary wrote:

 I think a better comparison would be the Aztek against a dedicated
 film
 scanner, not a flat bed. It is clear to me there is a focus issue with
 the Epson.

Yeah, the Epson's problematic at best. I put up crops from the Epson
here:

http://www.pbase.com/rrjackson/comparison

You'll notice that the 100% crops at 2400, 3200, 4800 and 6400 dpi
look almost identical. I have a hard time believing that the Epson
really resolves more than about 2000 dpi, despite its claim to
resolve 6400 dpi. A more interesting comparison, if someone were to
do scans strictly for the purposes of comparison, would be the Epson
against a Nikon or Minolta film scanner. I'd actually find it pretty
interesting to see how the Epson and a Nikon equipped with Aztek's
Nikon wet mount holder would compare. Just to see where the juice is
in the consumer market. Of course, that's still comparing a $2000
film scanner to a $500 flatbed.

-Robert Jackson



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