Re: [pinhole-discussion] Yet another lensless technique !!

2002-12-17 Thread Guillermo
- Original Message -
From: George L Smyth glsm...@yahoo.com

 I like that very much.  Now it's a matter of either figuring out the
specifics
 of how to make one and/or waiting for someone to offer them commercially.

George,

Since I am offering zone plates already, I will add Photon Sieves and
Pinhole Sieves to the offering, wait for an announcement on this.

Guillermo




Re: [pinhole-discussion] Re: swap

2002-12-17 Thread William Mokrynski

Hello,

I love the idea of a swap, and would like to be involved. However I have a 
huge issue with posting personal information such as a mailing address to a 
site that can be accessed by anyone on the web.
For future swaps I think privacy should be seriously considered. My 
suggestion is to email out the list only to users who have submitted a 
profile including mailing and email addresses. This wouldn't be perfect, but 
it would be better than having this information exposed as it currently is.


-William Mokrynski



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[pinhole-discussion] Pinhole Focus

2002-12-17 Thread Ian McKee

I made two assertions; 1) that at a given extension you will get the same
image regardless of pinhole size and 2) that the sharpness was the same for
each image.
I will stuck to the first and admit I'm on shakier ground on the second.
I used TMax 100 4x5 film and shot a scenic, a saguaro cactus at about 25
feet. Examining the negatives and proofs only with a loupe, they appeared
to me to be of similar sharpness. Also, I will admit I didn't shoot the
whole series of pinholes but only a sampling.
I plane to redo the experiment with the whole series to see if I am
mistaken. 
Regardless of the results, doing it is fun and enlightening!
 

--- Ian McKee
--- photo...@earthlink.net
--- EarthLink: The #1 provider of the Real Internet.





Re: [pinhole-discussion] Yet another lensless technique !!

2002-12-17 Thread Tim Rawling
Great stuff Guillermo.  It must have been a bugger to poke all those 
different sized holes in the foil though.


Just kidding ;)

Tim







From: Guillermo pen...@rogers.com
Reply-To: pinhole-discussion@p at ???
To: pinhole-discussion@p at ???
Subject: [pinhole-discussion] Yet another lensless technique !!
Date: Tue, 17 Dec 2002 00:49:41 -0500

I just finished writing and web-publishing a small article about the newest
lensless technique.  Similar to zone plate, it used diffraction in order to
focus light, but instead of rings, it uses a large amount of pinholes
appropriately distributed, this technique is called PHOTON SIEVE imaging, I
invite you to take a look at:

http://members.rogers.com/penate/sieve/photonsieve.html

Guillermo


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[pinhole-discussion] Re: [pinhole-discussion]

2002-12-17 Thread BenDuross
Hello
everybody, I really appreciate, all the advice I have recived
regarding pinhole polaroids and cyanotypes.
Just recently there was a big debate regarding digital photography versus more 
traditonal techniques.
I think that is all well and good.
but I bought big dan burkholders book.
And it alloed me to make images at a fraction of the cost.
I can understand why people would'nt want to sully the purity of the art form.
but.
buying a load of sheet film is a lot les expensive than buying epson photo 
quality inkjet paper.
Ben



[pinhole-discussion] Michel Bayard There?

2002-12-17 Thread Tom Miller
If Michel Bayard reads this... Could you email me off list as soon as
possible?  twmil...@attbi.com

Thanks,
Tom Miller




[pinhole-discussion] Dirkon

2002-12-17 Thread David Balihar
Hi,

I've received lots of emails about the Dirkon paper pinhole camera and so
I've added the original instructions for its construction to my web pages
www.pinhole.cz in Adobe PDF format. I'd be interested to know if anyone has
a go at putting it together. I wish you lots of luck and patience, and look
forward to seeing photographs taken with Dirkon!

Merry Christmas and Happy New Year

David Balihar




Re: [pinhole-discussion] black dust

2002-12-17 Thread George L Smyth
--- Catherine Just blue_medic...@yahoo.com wrote:
 Hi,
 
 I made a 20x24 black and white photograph of a pinhole
 image for myself and one for my boyfriend as a gift.
 
 I had the print made at a lab and there is a line of
 black dust that is really noticable as it is really
 close to the middle of the print. 
 
 I know this is due to my pinhole camera not being
 clean when I took the shot. But is there a way to do
 something like spot toning only to whiten it up?? I
 don't really know if I will give him the print if I
 can't lighten that up, or cover it up completely.

Catherine -

Assuming that the lab made the print on black and white paper, you can very
carefully bleach the portions you want to lighten.

Water (125 deg F or 52 deg C) - 750.0 ml 
Potassium Ferricyanide - 50.0 grams 
Potassium Bromide - 10.0 grams 
Sodium Carbonate, monohydrated - 20.0 grams 
Add cold water to make - 1.0 liter 

I believe that you will need to refix the print following the bleach (and
perhaps Spottone any areas that were bleached too far).  This is not an easy
thing to do.

Another thing would be to use Spottone to touch up the negative, though that is
much easier than it sounds.

Cheers -

george

=
Handmade Photographic Images - http://GLSmyth.com
DRiP Investing - http://DRiPInvesting.org

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Re: [pinhole-discussion] black dust

2002-12-17 Thread Richard Heather
If these are black dots on a white background you can pick off the black
spot with an exacto knife blade or hypodermic needle. This will leave a pit
in the emulsion but that won't be very noticeable under glass.
Richard Heather
- Original Message -
From: Catherine Just blue_medic...@yahoo.com
To: pinhole-discussion@p at ???
Sent: Tuesday, December 17, 2002 6:17 AM
Subject: [pinhole-discussion] black dust


 Hi,

 I made a 20x24 black and white photograph of a pinhole
 image for myself and one for my boyfriend as a gift.

 I had the print made at a lab and there is a line of
 black dust that is really noticable as it is really
 close to the middle of the print.

 I know this is due to my pinhole camera not being
 clean when I took the shot. But is there a way to do
 something like spot toning only to whiten it up?? I
 don't really know if I will give him the print if I
 can't lighten that up, or cover it up completely.

 Thanks for your help,

 Catherine

 =
 Catherine Just Photography
 Weddings~Portraits~Fine Art
 http://www.catherinejust.com
 619.294.3195







Re: [pinhole-discussion] black dust

2002-12-17 Thread Eric Hinders

Yes, its hard to tell with out looking at the print, but from my experience the 
most easy (not always the cheapest) way to spot a picture would be to scan it 
and retouch it in photoshop. the only problem is finding a scanner big enough 
for your print. But most larger printing studios have them. 
 Catherine Just blue_medic...@yahoo.com wrote: Hi,

I made a 20x24 black and white photograph of a pinhole
image for myself and one for my boyfriend as a gift.

I had the print made at a lab and there is a line of
black dust that is really noticable as it is really
close to the middle of the print. 

I know this is due to my pinhole camera not being
clean when I took the shot. But is there a way to do
something like spot toning only to whiten it up?? I
don't really know if I will give him the print if I
can't lighten that up, or cover it up completely.

Thanks for your help,

Catherine

=
Catherine Just Photography
Weddings~Portraits~Fine Art
http://www.catherinejust.com
619.294.3195


Don't just state your intent, Live it. ~Jerry Seiner Jr.

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[pinhole-discussion] black dust

2002-12-17 Thread Catherine Just
Hi,

I made a 20x24 black and white photograph of a pinhole
image for myself and one for my boyfriend as a gift.

I had the print made at a lab and there is a line of
black dust that is really noticable as it is really
close to the middle of the print. 

I know this is due to my pinhole camera not being
clean when I took the shot. But is there a way to do
something like spot toning only to whiten it up?? I
don't really know if I will give him the print if I
can't lighten that up, or cover it up completely.

Thanks for your help,

Catherine

=
Catherine Just Photography
Weddings~Portraits~Fine Art
http://www.catherinejust.com
619.294.3195


Don't just state your intent, Live it. ~Jerry Seiner Jr.

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Yahoo! Mail Plus - Powerful. Affordable. Sign up now.
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Re: [pinhole-discussion] Yet another lensless technique !!

2002-12-17 Thread Gregg Kemp
That's really remarkable, Guillermo.  I whole new area of exploration 
just opened up.  Nice going!


Gregg

On Tuesday, December 17, 2002, at 12:49  AM, Guillermo wrote:

I just finished writing and web-publishing a small article about the 
newest
lensless technique.  Similar to zone plate, it used diffraction in 
order to

focus light, but instead of rings, it uses a large amount of pinholes
appropriately distributed, this technique is called PHOTON SIEVE 
imaging, I

invite you to take a look at:

http://members.rogers.com/penate/sieve/photonsieve.html

Guillermo





RE: [pinhole-discussion] swap

2002-12-17 Thread Chuck Flagg
Traci,
From the last swap I sent inkjet printed pinhole photos on premimium glossy
paper.  I recieved digital, fiber base, RC, and a zerox copy.  All were very
creative and beautiful prints.  If you do random selection, I presume that each
person recieving one would send one in return.  At least that is what I plan to
do.

 Last year I sent to the whole list which was 49 and recieved 45 prints in
return.  I felt that it was well worth the effort. (Although I do admit 100%
return would have been great, but that's life!)
Have a great Holiday and happy printing  mailing.  I think Zernike Au, in an
email did suggest possible home holiday photos as a rough theme.  Anything you
feel good about would be fine.
Take Care,
Chuck Flagg