Digital BW, The Print

on 1/29/02 12:48 AM, SKID Photography wrote:

> Todd Flashner wrote:
> 
>> on 1/28/02 11:19 PM, Austin Franklin wrote:
>> 
>>> You are also confused by pixels vs sensors.  Digital imaging sensors use
>>> FOUR sensor cells to make ONE color pixel...so if you want to get the same
>>> amount of color information, you need four times the amount of sensors!  So,
>> 
>>> 4 x 22.1 is reasonably close to my claim of 100M pixels.
>> 
>> 
>> Question: I assume this is only true for one shot cameras, but not the 4
>> shot models, a la Leaf and Sinar?
>> 
>> Just curious.
>> 
>> Todd
> 
> If you are referring to the 'scanning backs' yes, that is how they get around
> that sensor/pixel problem.  But, as I understand it, those cameras are not as
> versatile because of the time it takes to scan.
> 
> Harvey Ferdschneider

No, I'm referring to 4 shot backs, which make 4 separate exposures per
capture, one for each color. This eliminates color interpolation. These are
for still-lifes primarily, for the obvious reason that movement between
exposures is a problem.

One difference between (among many) 4shot backs and scan backs is that scan
backs need continuous light sources, ie, tungsten, HMI, florescent, etc,
while 4 shot backs can also utilize strobe.

Todd