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[OM] Re: So digital can do it all?

Subject: [OM] Re: So digital can do it all?
From: petertje@xxxxxxxxxxxxx
Date: Thu, 3 Apr 2003 08:43:22 +0100
> From: Jan Steinman <Jan@xxxxxxxxxxxxxx>
> 
> There is no inherent "look" in RAW format, which is NOT what is captured
> by a digital camera anyway. By the time it gets to RAW format, it has
> already had a whole bunch of software processing, so I really cannot
> comprehend your aversion to software for modifying the "look" of a
> digital image.

I'm a fan of the following way of thinking.  When you enlarge a picture that's 
been taken with film, there's a certain threshold where the grain starts 
showing up.  If the film is any good, this appears pleasing to humans because 
it's irregular.  When you do the same with digital, it appears unpleasing 
because of the regular raster.  No in-camera or post processing can change this.

Another really bad thing is that some cameras store their pictures in JPEG 
format.

Then again, all these discussions are probably the same as CD vs. records.  No, 
you don't get the cracks and ticks noise with digital.  No, the superior 
"quality" (what a subjective term) cannot be proven despite all the numbers 
thrown at that job.

I play cds and yes, they sound very well on *my* stereo to *my* ears.


> For most digicams (with Bayer filter sensors), an image starts out with
> twice as much green information as red or blue, and each pixel senses
> only primary transmissive colors. Then what you perceive as the "look"
> of the sensor is generated by software, as it synthesizes this
> asymmetric matrix into full-color pixels. This is where most color
> balance algorithms operate, thus the "look" is truly variable, even with
> RAW mode.

No, look is more than just color balance.

In the meantime, the quality of digital *prints* has already equalled classic 
prints.  I particularly remember the Helmut Newton exhibit in NYC.  Or (for 
anyone in the neighbourhood) the current Dave McKean exhibit in Leuven.  The 
latter one is extremely impressive.  Anybody not knowing Dave McKean should 
urgently go out and buy some of the stories he's illustrated.  Recently, it's 
all digital prints for him, too.  But I'm guessing they're using film and scan 
it to get the resolution.


> >Film still allows more flexibility in how the
> >original image is recorded...
> 
> Again, we must agree to disagree.
> 
> Any given film has ONE way it reacts to light. A digicam has an infinite
> number of ways it reacts to light. You haven't convinced me otherwise.

I think the actual sensor has only one way that it reacts to light.  What 
happens afterwards (in the camera or on PC), is like what happens in the 
darkroom.


> This is not rocket science. It is not my opinion. It is "Moore's Law,"
> which has held true for 50 years of semiconductor technology advancement.

I'm not entirely convinced Moore's Law holds for CCD.  I've heard the story of 
how we'll all be using digicams within months from now, for far too many times. 
 In the mean time, estimates are getting longer (2-3 years ?)  Reminds me of 
the debate on how quickly computers will be able to think just like human 
beings.

Still, I do agree that for *practical* purposes (like my amateur travel 
photography), digital will be here some day.  But for my 2-month trip, I'd hate 
to have to take a pile of memory cards, or a PC.  The 2nd hand OM gear is 
expensive enough to have it stolen, let alone lots of digital stuff.  OM stuff 
is far smaller, too.  (and the user interface is better, and it doesn't feel 
like goddamn plastic)  :-)


Peter.




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