Re: A simple question...

Neil Harrington <not@xxxxxxxxxx> wrote:

"Victor" <Victor@xxxxxxxxxxx> wrote in message
news:6f407iF9ou7tU1@xxxxxxxxxxxxxxxxxxxxx

"Neil Harrington" <not@xxxxxxxxxx> wrote in message
news:CZOdnW99fe9uVRTVnZ2dnUVZ_oWdnZ2d@xxxxxxxxxxxxxx

But in such a case the subject would have to be *really* out of focus,
not
just slightly so as in the case of "Migrant Mother."

In the original print

http://memory.loc.gov/service/pnp/ppmsca/12800/12883r.jpg

copy 1a)

http://www.loc.gov/rr/print/list/128_migm.html


there's a thumb which is clearly visible at the bottom
right which was subsequently cropped.

This thumb is clearly out of focus.

However looking at that arrangement its difficult to see
how only that thumb, together with (allegedly) the woman's face
- more specifically the area around her fingers, her bottom
lip and left eye perhaps can both be out of focus, while
her elbow remains in focus.

You need to see an enlarged print to see what's in focus. Of the shots shown
on the web, some are better than others but none are really good. Monitor
resolution is just not good enough for this.

I often remarks here about the limited screen resolution requiring one
to look at a large print to see some small detail, and I don't
understand why. My monitor can't realistically display anything bigger
than an A4 print, and even then it won't stand the close scrutiny a
good A4 print can take. But if I want to look at finer detail I can
easily zoom in and look at a blown up fragment of the image at an
equivalent print size of A1 or even larger, as large as the pargest
print looked at with a magnifying glass.

Monitor resolution only matters if I want to display the entire image
all at once, whcih in this case of checking which parts of an image
are in sharp focus is certainly not necessary.

--
Chris Malcolm cam@xxxxxxxxxxxxxxxxxxxx DoD #205
IPAB, Informatics, JCMB, King's Buildings, Edinburgh, EH9 3JZ, UK
[http://www.dai.ed.ac.uk/homes/cam/]

.

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