Digital BW, The Print

---  I USED TO DO a lot of infrared photography and it is true the 
red and near infrared focuses behind the focus plane of the other 
colors in the spectrum. apo lenses correct most of this disparity so 
don't think it is an issue anymore. larry pirrone

In DigitalBlackandWhiteThePrint@y..., Todd Flashner <tflash@e...> 
wrote:
> on 2/11/02 12:27 PM, Austin Franklin wrote:
> 
> > Also, it would appear to me there may possibly be a depth of 
focus issue
> > with this sensor...
> > 
> > I would understand a sensor array that has three sensors per 
pixel...with a
> > triple filter over each of the three sensors (the three sensors 
on the same
> > plane), but I don't understand the stacked sensors...  What IS 
good about
> > their discussion though, is they separate out sensors vs pixels ;-
)
> 
> 
> I'm way out of my depth here (what else is new), but as each color 
is of a
> different wavelength, don't you stand more of a chance of getting 
them all
> in registration if the sensors are stacked to be at the right 
distance from
> the wave?
> 
> God, I can't even phrase the question intelligently. I'm thinking 
of light
> passing through a prism. As each color comes out it 
gets "projected" to a
> different location. If you were trying to record each of those 
colors most
> sharply, wouldn't you want each color specific sensor to be in line 
with
> it's color as it comes through the prism? Does a similar thing 
happen to
> light as it comes through a lens?
> 
> Todd