Digital BW, The Print

Bob, my D30 CLOSEUPS are as sharp as provia film scanned at 4000 dpi.
The 12x18 print is as sharp or sharper than the provia at the same
enlargement. You have to twiddle with the sharpness controls a lot to
get it that sharp, without artifacts, but the D-30 can take a LOT of
sharpening before anything shows up as an artifact. I have no doubt
whatever that the D60 will be able to please you. I'm as picky as you
are, and believe me, the D30 closeups are sharp. The landscapes have way
too much fine detail and don't hold up nearly as well as closeups do.

Jerry

> The Canon D60 may have a chip with 6.3 million 'sensors' that after
> processing in the camera produce 6.3 million 'pixels', but my point was that
> each of those sensors only measures luminosity and one color. A red sensor
> measures luminosity and red light; to produce an RGB pixel from it the
> program in the camera has to look at the values of the green and blue
> sensors around the red one, and guess (interpolate) what the red sensor
> might have seen if it could sense all three colours. The same goes for all
> the other 6.3 million sensors on the chip. None of them has the complete
> ('real') information on the scene you have photographed - not a single
> sensor in your camera can record the real detail in the picture!
> 
> So the color program in your D30, D60, Nikon D100, etc has to do exactly
> what Photoshop does when interpolating, look at the existing info and by a
> sum of varying complexity (linear, nearest neighbour, bicubic, etc)
> calculate the missing information that you want.
> 
> That is not to say that all interpolation is bad; after all our eyes operate
> on exactly the same principle (I think), interpolating from the rods and
> cones in our retina that have different sensitivities to red, green, and
> blue light.
> 
> I will eventually get a digital camera, of that I have no doubt (because of
> all the advantages that Robert Morrison pointed out), but at the moment the
> quality is not good enough for what I want. I want to be able to hand-hold
> my camera much of the time, crop my slides, and then print them at 11x16
> (A3). The prints I've seen from a D30 and Fuji S1 are just about OK
> (slightly soft) when uncropped at 8x10 (A4), but not at any greater mag
> unless it's the sort of image that is OK with soft focus.
> 
> Bob Frost.
> 
> ----- Original Message -----
> From: "Jerry Olson" <jerryolson@...>
> 
> > Bob, where did you hear that the pixels were interpolated? the Canon D60
> >  has a real 6.3 Megapixel chip. Wouldn't Nikon do the same, just to keep
> > up with Canon?
> 
> 
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