Archived posting to the Leica Users Group, 2010/09/15

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Subject: [Leica] Format output obviousness
From: chs2018 at med.cornell.edu (Chris Saganich)
Date: Wed, 15 Sep 2010 11:09:09 -0400
References: <C8B5EDFA.3626%mark@rabinergroup.com> <AANLkTimdjDeLirmoziZFUbgEgE0WBzRwLb5f3wsck8Se@mail.gmail.com>

Too many possible confounders which were not 
considered for this to be a valid study.


At 03:39 AM 9/15/2010, you wrote:
>You tell that to Michael Reichmann:
>
>"At one point I found myself looking at raw files on-screen and not being
>sure if I was looking at Hasselblad P45+ files or Canon G10 files. That
>includes at 100% onscreen enlargements."
>
>and
>
>Over a two day period I invited photographers and local industry
>professionals to come to my print studio and look at a series of 13X19"
>prints from an *Epson 3800* printer made on *Ilford Gold Fiber Silk* paper
>which were then hung side by side on my floor-standing print viewing box.
>This collection of seven people included experienced photographers, people
>from the commercial print industry, and other trade professionals. Between
>them there was at least 200 years of photographic industry shooting and
>printing experience.
>
>In most cases I did not tell them what they were looking at, simply saying
>that I had been shooting with two cameras, and that they should divide the
>prints (about a dozen) into two piles ? Camera A and Camera B. They were
>asked to judge resolution, accutance, colour reproduction, highlight detail,
>dMax, and any other factors that they wished to consider.
>The Results
>
>In every case no one could reliably tell the difference between 13X19"
>prints shot with the $40,000 Hasselblad and Phase One 39 Megapixel back, and
>the new $500 Canon G10. In the end no one got more than 60% right, and
>overall the split was about 50 / 50, with no clear differentiator. In other
>words, no better than chance.
>
>
>http://www.luminous-landscape.com/reviews/kidding.shtml
>
>
>
>
>
>On Wed, Sep 15, 2010 at 12:28 AM, Mark Rabiner <mark at 
>rabinergroup.com>wrote:
>
> > Every portfolio I've ever had or stack of prints; and every stack of 
> > prints
> > other photographers have shown me I've always known which ones of my 
> > prints
> > were 35mm, Medium format, or sheet film and I didn't have to bother 
> > telling
> > them and they didn't have to bother telling me; as we all knew at first
> > glance.
> > I can normally easily tell the difference between a full frame digital
> > image
> > even at low output and cropped format digital output and I think many
> > people
> > can with any experience. And certainly the difference between that and
> > point
> > and shoots with sensors the size of my pinky nail. And the 2x crop in
> > between. And medium format digital blows me right out of the water at 
> > least
> > my eyeballs.
> > If you can't tell the difference between your large and smaller format
> > digital output the time to hang it up is now.
> > Take up audio.
> >
> > --------------------
> > Mark William Rabiner
> > Photography
> > mark at rabinergroup.com
> > .
> >
> >
> >
> > _______________________________________________
> > Leica Users Group.
> > See http://leica-users.org/mailman/listinfo/lug for more information
> >
>
>
>
>--
>// richard <http://www.imagecraft.com/>
>// icc blog: <http://imagecraft.wordpress.com>
>// photo blog: <http://www.5pmlight.com>
>[ For technical support on ImageCraft products, please include all previous
>replies in your msgs. ]
>
>_______________________________________________
>Leica Users Group.
>See http://leica-users.org/mailman/listinfo/lug for more information

Chris Saganich MS, CPH
Senior Physicist, Office of Health Physics
Weill Medical College of Cornell University
New York Presbyterian Hospital
chs2018 at med.cornell.edu
http://intranet.med.cornell.edu/research/health_phys/
Ph. 212.746.6964
Fax. 212.746.4800
Office A-0049


Replies: Reply from henningw at archiphoto.com (Henning Wulff) ([Leica] Format output obviousness)
In reply to: Message from mark at rabinergroup.com (Mark Rabiner) ([Leica] Format output obviousness)
Message from richard at imagecraft.com (Richard Man) ([Leica] Format output obviousness)