Thanks. I think you've just emphasized my point. Kodachrome resolution
is 63 line pairs/mm or, at 2 pixels per line, the equivalent of 3024
pixels vertically. Using the conventional 300 ppi it says we can't make
a decent image from Kodachrome larger than 10x15 inches. But that huge
wall projection still looks great as long as you keep your distance.
That projected image was not designed for pixel peepers.
Chuck Norcutt
Tim Hughes wrote:
> Kodachrome 35mm slides projected to about 48"x32" always looked pretty good
> in the living room
> from about 7' away. And you really could tell there was big difference
> between a Leitz colorplan
> lens and a generic Kodak projector lens. Viewed closeup the limit was often
> the film
> curvature/lens projector lens focus issue. You could focus critically at any
> point but not all
> over the slide.
>
> And no pixel sampling artifacts to bother with, only nice irregular grain!
>
> For old darkroom hounds just think how large an image you cropped from when
> Black and white
> printing.
>
> Tim Hughes
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