It looks like a 3 or 4 color separation offset print so my guess would
be with Paul that it is a photo of an image printed in a magazine.
Is the same pattern visible if you look at the print directly under a
loup? I assume it is there. If not it would probably be a scanning artifact.
Sounds like a fun project!
Mark
On 2/27/2014 4:32 PM, David Mann wrote:
Here's something the more experienced photographers might be able to help me
with...
Among these old slides I've been scanning are a handful of colour ones which
are not part of the Australian stuff. A few of these colour ones (but not all)
appear to have a kind of halftone pattern. See here for an example at 1200ppi.
http://gallery.multi.net.nz/photo/771/
As you can imagine it's fiendishly difficult to scan. Once I have a good scan
(ie not blown out) it's quite easy to get rid of the pattern in Photoshop.
Note I haven't done any colour corrections other than increasing the brightness
a bit.
I've had a look using a 10x loupe and it looks a bit like an LCD screen but is
hard to make out at such a low magnification. I might try a higher res scan
later, and I'll find out whether the microscope at my wife's work has a camera.
Could anyone fill me in on what the film might be? The photo in the pic was
taken in 1951. In case you're curious it's part of a photo taken at the top of
Dyers Pass after a snow storm. I might post the full pic in future.
Cheers,
Dave
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