snip

Steve,

Why did the original news article mention pixels at all if it is a film
based camera? Pixels are only relevent (despite what certain Photoshop
menus say about print resolution) for CRT and LCD screens.

Beemer




I think you are talking about the other post, where clearly I didn't read
properly, as you say this is film not a image sensor of some kind.

But pixels are important. Although you'd be correct in saying that you
don't print pixels directly, the more you have, the more you can enlarge
whilst retaining a high DPI.

On Thu, 9 Jun 2005 23:51:48 +1000, "Steve Franklin" wrote:

But pixels are important. Although you'd be correct in saying that you
don't print pixels directly, the more you have, the more you can enlarge
whilst retaining a high DPI.

In terms of colour negative film, pixels can be considered the grain size of the
three layers.

Projecting a film shot on 8mm, 16mm, 35mm or 65mm to the same size screen
clearly shows the effect.

This is why the guy in the original article was using very fine grain emulsion
which could be scanned at very high resolution.
Stuart

www.mckears.com

In message , Stuart McKears
writes
On Thu, 9 Jun 2005 23:51:48 +1000, "Steve Franklin" wrote:

But pixels are important. Although you'd be correct in saying that you
don't print pixels directly, the more you have, the more you can enlarge
whilst retaining a high DPI.

In terms of colour negative film, pixels can be considered the grain
size of the
three layers.

IIRC Circle of Confusion has something to do with it.

http://www.physicsdaily.com/physics/Circle_of_confusion tells you
something about it.

--
Tony Morgan
http://www.camcord.info

On Thu, 9 Jun 2005 19:33:13 +0100, Tony Morgan
wrote:

In message , Stuart McKears
writes
On Thu, 9 Jun 2005 23:51:48 +1000, "Steve Franklin" wrote:

But pixels are important. Although you'd be correct in saying that you
don't print pixels directly, the more you have, the more you can enlarge
whilst retaining a high DPI.

In terms of colour negative film, pixels can be considered the grain
size of the
three layers.

IIRC Circle of Confusion has something to do with it.

http://www.physicsdaily.com/physics/Circle_of_confusion tells you
something about it.

Circles of confusion are a way of measuring resolution and can be applied to
film cameras (movie or still) and to electronic cameras (movie or still).

Circles of confusion data is very useful but in the end maximum resolution in
limited by, in film aquisition. the grain size and processing and, in electronic
aquisition, by the chip size and electronic processing.
Stuart

www.mckears.com

Either way, I'm glad you posted the link.