In a message dated 2/27/01 4:16:51 PM, glsm...@yahoo.com writes:
Actually, split filter printing is best used for producing a print which
contains multiple contrast values. Using two filters on the whole print will
yield nothing that a single filter cannot produce (unless one insists upon
I think I've seen this, but can't remember where.
Pam
G.Penate wrote:
... there is a picture
of a guy that made a spherical film plate dug in the ground and BW paper
placed to conform the shape of the hole.
Guillermo
___
Pinhole-Discussion
Think of cutting out a format sized segment from a sphere, just have
to place supports so the film/paper is forced to lay on the sphere's
inside. However, the wheel of cheese approach is good, too, as is a
horizontal cylinder.
Pam
William Erickson wrote:
I've daydreamed a lot about shpeircal
I've daydreamed a lot about shpeircal film planes but I haven't figured out
how to do it. You can do one curved in one dimension, though. The radius of
the curve is the 'focal length of the aperture. It makes the camera look
like half a wheel of cheese. In the ones I've made like this there is
- Original Message -
From: Pam Niedermayer pam_p...@cape.com
This means the spherically shaped film
holder would have to be different for each focal length. Ouch. :)
A spherical shaped film plane would be ideal to maximize the edge
sharpness, I guess I should say: to minimize edge
Thanks, George, that's what I was trying to confirm. I should have
said something more like the distance from pinhole to film plane would
be the radius of the sphere. This means the spherically shaped film
holder would have to be different for each focal length. Ouch. :)
Pam
George L Smyth
--- Pam Niedermayer pam_p...@cape.com wrote:
How spherical would the film plane have to be to get to sharp edges?
Let's say I'm building an 8x10 pinhole camera (which I am), and wanted
to build a special curved film holder. Should the spere be around the
distance from pinhole to film center,
--- b2myo...@aol.com wrote:
and a contact print of a solarization of a pinhole neg...with great mackie
lines...using a #5 filter...or a #0 filter for a different effector split
filter printing...#5, the #0.
Here are instructions for split filter printing:
[clip]
Actually, split
How spherical would the film plane have to be to get to sharp edges?
Let's say I'm building an 8x10 pinhole camera (which I am), and wanted
to build a special curved film holder. Should the spere be around the
distance from pinhole to film center, the pinhole being the center of
the sphere?
Pam
I'd guess that edge softness is a product of the fact that the plane of
optimal sharpness is a hemisphere centered aroiund the hole, and the film
plane is flat, transecting the optimal image best at the center, or if
rounded, not rounded at the same radius.
- Original Message -
From: Simon
gee I thought I had an original idea.ow well
andy
-Original Message-
From: pinhole-discussion-admin@p at ???
[mailto:pinhole-discussion-admin@p at ???]On Behalf Of
b2myo...@aol.com
Sent: Tuesday, February 27, 2001 12:05 PM
To: pinhole-discussion@p at ???
Subject: Re:
- Original Message -
From: mark boucher
i liked the panoramic images by simon. i'd second whoever said
they would like to see a picture of the camera. i guess since i
don't know what a bookboard is it's hard to picture.
Bookboard is the hard cardboard used to make hard cover books,
That's wonderful, Vladimir. Diana Bloomfield and I are working with
Guy to produce a marketing/publicity plan. Since there's no way we can
actually do all the publicity ourselves, we'd planned to put together
a package that could be used by anyone to promote the day wherever
they live. I'd love to
Original Message -
From: Guy Glorieux
What on earth is a chad, whether dimpled, hanging or pregant? Never seen
one in my life...
Guy
You are fortunate indeed! g
Cheers -
george
=
Handmade Photographic Images
http://members.home.net/hmpi/
Just in case there are some people new to darkroom work, you have to
use variable contrast papers for this to work.
Pam
b2myo...@aol.com wrote:
In a message dated 2/27/01 11:15:26 AM, aschm...@warwick.net writes:
a solarized PH Negative...
and a contact print of a solarization of a
In a message dated 2/27/01 11:15:26 AM, aschm...@warwick.net writes:
a solarized PH Negative...
and a contact print of a solarization of a pinhole neg...with great mackie
lines...using a #5 filter...or a #0 filter for a different effector split
filter printing...#5, the #0.
Here are
The used/old developer is also preferable in doing solarizations...now thats
an idea...a solarized PH Negative...
andy
-Original Message-
From: pinhole-discussion-admin@p at ???
[mailto:pinhole-discussion-admin@p at ???]On Behalf Of Edward Levinson
Sent: Monday, February 26, 2001
Thanks for all your help. Guillermo's argument for a bigger-than-optimal
pinhole strikes me as the most likely to produce better far-edge
sharpness. though this would most likely sacrifice quality in the
center. I wonder if it's worth it, or whether I should just go with what
I have.
As to my
Oh, you probably have seen them, they're the little bits, usually
circular or oval, partially cutout, that you punch out of card stock.
Everyone here knows about them because of the Florida presidential
voting debacle, several counties used card stock for the ballots, you
were supposed to punch
How long does a chad remain pregnant before it has the litter?
Maybe Nillson has a way of photographing those little chads in the womb.
Jim K
BTW, I tried with a pregnant chad, but got no image, I guess I should have
known!
Guillermo
___
- Original Message -
From: Guy Glorieux
What on earth is a chad, whether dimpled, hanging or pregant? Never
seen one in my life...
Guy
You can order some here: http://www.miamisouth.com/ !!!
Guillermo
Hi Ed,
Have not used warm tone developers but have had very good results lowering
the contrast of paper negatives with soft developers, such as Selectol.
Jim K
- Original Message -
From: Edward Levinson e...@awa.or.jp
To: pinhole-discussion@p at ???
Sent: Monday, February 26, 2001
- Original Message -
From: Simon Cygielski si...@wbj.pl
I've uploaded a couple of my first efforts with my 6x17 cm panoramic
pinhole camera. They're up at
http://www.p at ???/discussion/upload/images/path1.jpg and
http://www.p at ???/discussion/upload/images/phones2.jpg
Wow,
What on earth is a chad, whether dimpled, hanging or pregant? Never seen one
in my life...
Guy
G.Penate wrote:
- Original Message -
From: Gregg Kemp gregg.kemp@p at ???
Well, I guess I was dead wrong about the need for discussion. Its been as
quiet at the polls as it has on
Very cool. As to edge sharpness, is the film supported all the way
across by rails of some sort? Is it possible that in building the
extension the ends went off plane? Or (can you tell I'm just guessing
here? g) maybe the rails need to be curved just a bit to accommodate
the hole.
Pam
Simon
In a message dated 2/26/01 8:48:39 PM, gregg.kemp@p at ??? writes:
The birth of the pinhole day is now in your hands:
I voted already.
PLEASE
EVERYONE
we need you...
let's get this wonderful experience on it's way.
You know how important EACH vote is.
JUST DO IT!
Thanks in
- Original Message -
From: Gregg Kemp gregg.kemp@p at ???
Well, I guess I was dead wrong about the need for discussion. Its been as
quiet at the polls as it has on the list today. Speaking of polling, has
anyone ever tried making a pinhole image with a dimpled chad? or perhaps
a
--- Simon Cygielski si...@wbj.pl wrote:
I also have a question: is the loss of sharpness on the far edges
inevitable, or can it be corrected somehow? perhaps thinner stock? This
hole was made (fairly carefully) out of a Coke can
I would definitely say that thinner stock would be appropriate.
on 2/27/01 4:56 AM, Simon Cygielski at si...@wbj.pl wrote:
Hi all,
I've uploaded a couple of my first efforts with my 6x17 cm panoramic
pinhole camera. They're up at
http://www.p at ???/discussion/upload/images/path1.jpg and
http://www.p at ???/discussion/upload/images/phones2.jpg
Hi all,
I've uploaded a couple of my first efforts with my 6x17 cm panoramic
pinhole camera. They're up at
http://www.p at ???/discussion/upload/images/path1.jpg and
http://www.p at ???/discussion/upload/images/phones2.jpg
I built the camera out of a Holga using bookboard to expand it
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