RE: [Leica] Re: Leica Users digest V17 #253

[Austin Franklin <austin@darkroom.com>]

I completely agree.  Not only is it way off in just raw data but as you 
know, it takes either multiple sensors, multiple passes, or multiple 
'photosites' to make one color pixel.

As of right now, film and scanning the film produces a very very nice 
result, especially using B&W piezography.

- ----------
From: 	Jim Brick
Sent: 	Monday, July 17, 2000 6:29 PM
To: 	leica-users@mejac.palo-alto.ca.us; leica-users@mejac.palo-alto.ca.us
Subject: 	[Leica] Re:  Leica Users digest V17 #253

Fuji states, in their ad's, that it is 6mp "image size" which is quite
different from a 6mp sensor. Fuji uses a (I cannot remember off the top of
my head) 2.8mp sensor and generated the 6mp size by interpolation. Look up
"interpolation" in the dictionary.

Philips has had and it is used in many "pro" digital cameras, a true 6mp
sensor. We have one here (sensor that is) but six megapixels (divided by
four as all of these sensors are Bayer pattern) is still miles and miles
away from the capabilities of film. It will require a new sensor technology
to be able to compete with film. Current technology puts us at the limit of
the signal to noise ratio. We cannot make the current cell components any
smaller. The number of electrons stored to record a pixel has to be enough
to seen above the noise of semiconductor junctions and capacitive layers.
The process is already at the .10 micron level and is beginning to conflict
with the atomic structure of the molecules.

Therefore, to make a "higher resolution" electronic sensor, a new
technology will have to be developed. And it is being feverishly worked on
as we speak.

Keep buying those Leica lenses. It'll be a long time before film plays
second fiddle to digital.

Jim


At 02:15 PM 7/17/00 -0400, LRZeitlin@aol.com wrote:
>I see from the trade press that Fuji has released a semipro digital SLR 
with
>a 6mb + pixel photosensor. Several months ago there was a thread on the 
LUG
>that suggested that a 6mb pixel density would be the threshold for film
>equivalent results in digital photography. Does anyone care to comment?
>
>LarryZ