I spent a lot of time trying to sort out the whole film vs digital 
thing. A lot of the things I worked through are on my blog, but this 
link sums up where I finally wound up:

http://www.markcassino.com/b2evolution/index.php?title=stuff_per_pixel&more=1&c=1&tb=1&pb=1

Medium format and certainly large format still excel at capturing scenes 
that require very high resolution, and still do a better job than 
digital. But, most folks never shoot stuff that really calls for high 
resolution, so this is a moot point to them. I don't think a group 
portrait is a particularly high resolution challenge, unless you need to 
see individual eyelashes.

As a practical example - I'm working today on an entry for an art show, 
hosted by the local at museum. I've been struggling all day to get a 
decent 12x18 print of this shot:

http://www.markcassino.com/galleries/stream/061201/_IGP0058.htm

It was taken with the K10D. There is just gobs of data in that image - 
branches upon branches upon branches. I've tried various raw 
interpreters but at the end of the day - the data just was not captured 
on the sensor, so I get jaggies and a loss of detail in the most 
intricate parts of the image.

On the flip side, the other image that I plan on submitting is a 28 x 23 
inch print of this framed out generously and sitting in my dining room:

http://www.markcassino.com/galleries/asga/asga00.htm

That was taken with a 6x7, 55mm f4, and scanned on a lowly Epson 3200. 
It was shot on Classic Pan 200. But the detail in the enlargement is 
outstanding. Here's an actual pixels sample:

http://www.markcassino.com/b2evolution/media/67_504_detail.jpg

The detail in the enlargement far exceeds the detail in the shot taken 
with the K10D. I mean - comparing a 12x18 to a 28x23, the latter has 
more detail. There is no way I could print the K10D shot at that size 
and get anything but an artifaced mess.

On the flip side - I would never try to take snow crystal shots with the 
6x7 - trying to enlarge a 5mm snow crystal up to 6 cm would be almost 
impossible - just enlarging them to fit an APS sensor will capture all 
of the availble detail.  And I have some excellent 28x28 inch 
enlargements of snow crystals shot with the *ist-D.

So - it all boils down to what tool is right for the job. The folks at 
luminous landscape defined "the job" a certain way, and came up with 
their results. It's useful as a benchmark of where digital is in 
relation to film - I've been surprised at how much more detail the K0D 
can capture vs the *ist-D. But it's also a bit of a tautology in that if 
you know the state of current photographic tools, what is right for the 
job is obvious.

- MCC

Jens Bladt wrote:
> To me this question is not a religion - just at matter of choosing the right
> gear for the job.
> Well, I know Luminous Landscape says a Canon 1Ds does better than a scan
> from a Pentax 6x7.
> http://www.luminous-landscape.com/reviews/shootout.shtml
> 
> But paper is patient. So are HTML-files.
> But what can we do, really?
> 
> Have any of you guys done group-portraits with a digital camera - APS or
> Full Frame?
> If you have such group portraits, showing 20-30 people, I'd love to see one
> face croped out of it.
> A crop showing 5-10% of the total frame area.
> Just to see if you can do this better than me.
> 
> So, for staters I made a small comparison here:
> http://www.flickr.com/photos/bladt/sets/72157594491741789/
> 
> Comments are most welcome
> Regards
> Jens Bladt
> 
> 
> --
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> 22:31
> 
> 


-- 
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Mark Cassino Photography
Kalamazoo, Michigan
www.markcassino.com
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