RE: [pinhole-discussion] new image upload

2001-04-15 Thread Michael Keller
Very ethereal, I like these a lot. BTW, Tinachair got uploaded twice.g

|-Original Message-
|
|
|Hello all-
|I have uploaded 5 hand coloured zone plate images to the list page under 
|Tina. These are all 35 mm taken with a zone plate made by 
|Guillermo, using 
|Delta 3200 film. All exposures hand held.
|
|http://www.p at ???/discussion/upload/images/
|
|



[pinhole-discussion] new image upload

2001-04-15 Thread Tina Martin

Hello all-
I have uploaded 5 hand coloured zone plate images to the list page under 
Tina. These are all 35 mm taken with a zone plate made by Guillermo, using 
Delta 3200 film. All exposures hand held.


http://www.p at ???/discussion/upload/images/

Hope you all are having a pleasant Easter weekend.

Tina


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[pinhole-discussion] fibre optic pinhole

2001-04-15 Thread David M Ocampo
Are we talking about a single strand or a bundle?  Could you use a
pinhole lens to focus on one end  of a lot of strands and point the other
end ( each strand ) at different parts of the film ( Connect the dots to
see the picture ) or do you need a lens ( pinhole ) on both ends?   
Dave O


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[pinhole-discussion] reply

2001-04-15 Thread uri almagor
confirm 565284


[pinhole-discussion] test

2001-04-15 Thread Vladimir Mikovic
test
...





Re: [pinhole-discussion] Pinhole and lith printing - A natural complement?

2001-04-15 Thread Jean Daubas
- Original Message -
From: Mike Vande Bunt mike.vandeb...@mixcom.com
To: pinhole-discussion@p at ???
Sent: Monday, April 02, 2001 7:28 AM
Subject: Re: [pinhole-discussion] Pinhole and lith printing - A natural
complement?


 Also, would it be possible to see an example
 of a negative printed on both regular paper and lith paper
 so that we can see what the contribution of the lith paper
 is?  (It is hard to tell if contrast / tonality is due to it being
 pinhole, or to the lith printmaking process.)

 Mike Vande Bunt


Hi all !
Very late reply...  Since Guy had introduced this Lith subject, I wanted
to post a very interesting resource book about lith printing where you could
find excellent comparisons between conventional and Lith prints from the
same negative.

The book, which I find excellent on many other subjects (especially toning
procedures) is :

BEYOND MONOCHROME, a Fine Art Printing Workshop
by Tony Worobiec and Ray Spence,
(c) 1999 ;  Published by : Fountain Press Ltd, Kingston upon
Thames, Surrey, UK
ISBN 0 86 343 313 8

There is a whole chapter dedicated to Lith printing, dealing with choice of
papers and developers, details of procedures and tests, solving specific
problems such as pepper fogging; one of the most interesting part is about
the combinations of lith printing with various toners and the very unique
results obtained with Lith + split toning. As for the whole book, the choice
of the photographs illustrating text descriptions is really perfect and the
details of print aspect are really very well rendered through the printing
process of the book.
Hope it helps, even if lately
and Happy Easter from France !

Jean





[pinhole-discussion] fibre optic pinhole

2001-04-15 Thread Jeremy Siemens
The best way to figure out what would happen if you
used a fibre optic pinhole would be to just make one
and see what happens.  

For those of us who are curious how fibre optics work,
here's what I understand:  (Sorry if this all sounds
technical, but even pinhole photography must obey the
laws of physics)  Light that enters a fibre optic at
an angle will exit the fibre optic at the same angle
because it bounces around the inside of the fibre (see
http://www.stamweb.com/Article%20Fiber.htm ).  If
light enters the cable from all sorts of angles, the
light coming out of the cable will be scattered all
over the place.  A beam of light that enters and
travels PARALLEL to the fibre never bounces off the
walls, therefor it exits the fibre exactly as it
entered.  
The fibre optic scopes that surgeons and big-shot
movie directors use have LENSES on the end that FOCUS
light rays so the rays travel parallel into (and out
of) the fibre optic cables.  Without a lense, a fibre
optic pinhole would just scatter light around the
inside of the camera (except directly behind the fibre
optic cable where the image will only be the size of
the cable's thickness).  With a lense, a fibre optic
pinhole would no longer be a pinhole.  But it's a good
idea though...

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