Digital BW, The Print

Hi Jerry,

> I do this all the time and get fantastic prints up to and including
> 13x19. As sharp as film.

Sharpness has never been an issue...but detail is.

> The sharper your lenses, the sharper your prints, just as in
> regular photography.

Actually, that's not really true.  Perhaps you might want to read this paper
by Schneider WRT this topic:

http://www.schneideroptics.com/info/white_papers/optics_for_digital_photogra
phy.pdf

Basically, you want the lense to be as sharp as the sensor array, and too
much sharpness actually causes a DECREASE in image sharpness.

> I have a 12x18 photo of my cat's face that is every bit as sharp as a
> velvia scanned slide. Taken with the
> Canon Macro 50mm lens, one of the sharpest lenses ever made.

There is a low pass filter over the cameras sensor array, which limits the
resolution to the sensor...so no matter how sharp your lense is, it is only
as sharp (as far as the sensor is concerned) as the filter will let it be.

If you want to know more, I'm happy to discuss it.

Regards,

Austin