Hi Everybody,,, I have just subscribed to your list ... I am in the
processof building several photographic items... The things I hope to
be buildingis a 8x10 camera with a 6 foot bellows, a light weight
20x24 camera with a48 inch bellows, and a 10,000 watt 11x14
Ultraviolet enlarger I
. If you are interested contact me off line.. If you come across
a Vandercook Cosmo Color please let me know as I need to buy one for the
parts..
John Cremati
Cleveland , Ohio.
From: Uptown Gallery [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Saturday, August 03, 2002 9:29 PM
Subject
would have to block all light fom the film plane down to the paper plane
..I would not use the condensers as they too will block the UV as well
as standard mirror
Now you know everything that I know.. Good luck... Send me a picture
of the thing when it is built
Regards,
John
a blower fan to keep things cool...
Happy Trails,
John Cremati
- Original Message -
From: filmpro [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Friday, August 09, 2002 4:23 AM
Subject: Re: [Cameramakers] Surplus Military lenses??
Hi john!
Very helpful. I don't have a problem getting
Now you know everything that I know.. Good luck... Send me a
picture
of the thing when it is built
Regards,
John Cremati
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Hi ,
I have seen a few 'contact film holders' on E-Bay recently... They
were just like old contact frames for a 8x10 with a spring pressure back to
push the film flat against a glass... Only difference was that it was the
same size as a 8x10 film holder...You could even expand on that
The pressure plate film holders are a special hard to find item. I
have only seen them twice on E-bay in 8x10 size.. I had mentioned it
because it would be a light weight alternative to a vacuumed back keeping
the film very flat which would be important when dealing with such large
oto lenses but
are slow...
I am in need of a Ilex # 5 shutter for a 42
inch focal length SchneiderRed dot Altarthat I have...
John Cremati..-
- Original Message
From:
Gene Johnson
To: [EMAIL PROTECTED]
Sent: Sunday, September 08, 2002 6:07
PM
Subject: [Ca
Hi Richard,
Are the Computars APO designed? Do all
the Chromatic abberations meet relativley close?Thanks, John
Cremati
- Original Message -
From:
Richard
Palmer
To: [EMAIL PROTECTED]
Sent: Thursday, September 12, 2002 10:38
PM
Subject: [Cameramakers
3/4 inch in thick...
Regards,
John Cremati
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://www.panoramacamera.us
or
keyword.com lookaround
Repy by John Cremati:
Hi Allen,
Are you talking of the separate thin Formica sheet ( Formica which you
would glue to a wood counter top) or Formica which has been already glued
to a particle board? I know that the Formica which
Does any one know what material that conventional dark slides are made of
used by currently mass produced film holders ?
John Cremati
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. It may be a
little thick at about 1/8 inch but is very light weight... I think i will
take a piece of sheet film and stick it out in the sun for a while
withSinra covering it and give it a light leak test
Regards ,
John Cremati
John Cremati wrote: I have my doubts that these
thicknesses will work in a 20x24 inch format.. If a thin aluminum
sheet is used in the mammoth sizes it will have to be made
of highly tempered aluminum alloy and very
ridged.. In the book "Primitive Photography " A guide to makin
with some sort ofpolyester felt
...Any Comments on using this material?Look up number:
1115a2
http://www.mcmaster.com/
John
Cremati--William
Nettles wrote: Darkslide material is part of the reason
I would construct a non-standardf
is about $35 . If I am
layering 1/8 x 1 1/2 aluminum strips to form the framework for the dark
slide the edges of the black foam core are easily sanded to fit.
John Cremati.
- Original Message -
From: Alan Zinn [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Friday, September 27, 2002 11
good negative film carriers for enlargers as well as printing
frames...
Regards,
John Cremati
using this
material for dark slides
John Cremati...
Alan Zinn wrote:
John, I wonder if there is a sample kit available?
I'd like to try some of the tubing for rollers, etc.
AZ Maker of Lookaround panoramic camera. http://www.panoramacamera.us
or keyword.com
lookaround
John Cremati wrote..Alan,
There is a huge number of
rods, tubes
the
darkslideect... Any feelings or suggestions on
this?
I like the idea of a
twopiece film holder for ease inloading and unloading.
Maybe some sort of a pinned or clamped compression style
frame should be considered.
John Cremati
will seriously consider
it...
Thanks, John
Cremati.
- Original Message -
From:
Gene Johnson
To: [EMAIL PROTECTED]
Sent: Tuesday, October 01, 2002 9:18
AM
Subject: Re: [Cameramakers] New Magnetic
Film holder design
I've seen some really strong and tiny rare
I was just curious how many have attempted to make their own film holders
and if they feel if it was worth the effort . I am beginning to fully
realize just how extremely precision these film holders have to be
John Cremati
___
Cameramakers
is a
little to bulky for camera use... the CORDURA® Plus 160-68-T440 looks like
their lightest , but it is a blend . You can see all the descriptions on
their web site... Evidently you can get samples...
Thanks,
John Cremati.
This section provides the fiber and fabric options in the CORDURA® product
line
Allen [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Tuesday, October 15, 2002 1:44 PM
Subject: Re: [Cameramakers] Bellows Material Cordura
On Sun, 13 Oct 2002, John Cremati wrote:
Has anyone tried using Cordura Nylon as the outer layer in bellows
fabrication ? It is supposedly the toughest
it for chaps, luggage or
in other places where strength is more important than weight or flexibility.
John Cremati
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I am trying to build a homemade camera bellows for a 20x24 camera and
have several specific questions. .
1) What is the ideal fold width or pleat depth for such a large bellows.).
2) What would be the ideal length on such a bellows using various process
camera lenses( 270 , 360,450, 600mm
building and using a form for such a large
bellows?
5 ) Would you coat the outside or inside of the
finished bellows with some sort of rubberized black out paint?
Once we finally begin to make this camera we
will document every thing and make it available to all..
Thanks,
John Cremati
. http://www.cordura.com/ Any
suggestions?
John Cremati
Just curious, How big is the film size? Whould you be interested in selling
the lith film sep..?
- Original Message -
From: Beau Schwarz [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Thursday, October 17, 2002 9:37 AM
Subject: [Cameramakers] Walzburg Horizontal camera, Free !!!
Hi,
I
layer of the materials and flex it every day for several
months
as a test.
John Cremati replied:
I have used white glue to try to rebind some of my books and it does
work very well on cloth and paper... but I am dead set on using the Cordura
nylon as the outer layer on the bellows. I would
Reply by John Cremati
I think that they make a special thinner for contact cement that does
not affect the tack qualities.Probably Two very thin coats by spraying
would be ideal.. The Cordura I have coming has supposedly a light kiss
coat of urethane on one side.. which may help
it was well worth a gamble... It
would make for a great equipment bags, or upholstery cover as it is tuff tuff
stuff.. I am going to try the 160 D now and hopefully that will do the
trick..The 160 is supposedly the material used inlight weight swim
wear...I will keep you posted..
John
This is very interesting. You should post this thread to the Altternative
photo list ( [EMAIL PROTECTED] )
as well as the Carbon list(carbon( [EMAIL PROTECTED] )... They
would all have a intrest in this information.. John Cremati.
John Cremati
- Original Message
.. They
would always make their test on a part of the painting that could not be
seen John Cremati
- Original Message -
From: Marv Soloff [EMAIL PROTECTED]
To: cameramakers@rosebud.opusis.com
Sent: Thursday, October 31, 2002 1:42 PM
Subject: [Cameramakers] Camera Restoration
This may
Does any one know the T distance ASNI standard for
a 20x24 film holder?
flat black?
If it is
critical does anyone have any suggestions to dull the sheen..
Also is
there any recommendations for liners that are dead flat black..
Thanks,
John Cremati
I don't know why these are breaking up in
and cheap.. I
will be building the first prototype in the near future and will document
everything..
John Cremati
- Original Message -
From: ronald anger [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Wednesday, November 27, 2002 6:53 PM
Subject: [Cameramakers] 20 X 24 camera
Regarding
stratagem I think if you can afford to hold out it will pay off..He
has created a very unique portfolio of some very wealthy,
powerful , interesting people..
John
Cremati
My friend researched and bought a General Table Saw.. They are quite a
precision saw.. It is amazing how the American saws have degraded.. So much
is made in China now with really lousy tolerances..
John Cremati
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I have some monster lenses. A 42 inch Sniederer Red
Dot Aptar will be the main lens. It is 5 inches in diameter and a Packard
shutter will be on the back of it.. The lens board will be Ideal but I am
worried about snapping or bending the front framework.. Thanks, John
Cremati
Rather than using a silver based emulsion as the final emulsion or
film , you could use a glass coated with gelatin with a aniline dye (
aniline dyes are generally transparent) , sensitize the emulsion with
ammonium dichromate .. Aniline dyes I believe is what Kodak uses in many of
their
I once had a very rare 55 mm lens called a Ultra Micro Nikor
Supposedly it had a extremely high resolution at extreme magnifications...
Unfortunately I found out that it was same as your lens, optimized for just
one color with little use for conventional photography It was used
.
How big is your enlarger?
John Cremati.
- Original Message -
From:
Hornford,
Dave
To: [EMAIL PROTECTED]
Sent: Tuesday, January 14, 2003 3:52
PM
Subject: [Cameramakers] Enlarger
Transformers
I am
working on building/restoring a large format enlarger an
There are a very interesting set of books being
sold on E-bay.. It is a set of Patent books covering every aspect of early
photography. Only a few hours left.
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemitem=753635077category=14279
The Patent books did not sell because it did not
make the reserve price , so they are still up for grabs.. I had emailed the
seller and asked what the minimum was .. He replied a mere $2000.00
- Original Message -
From:
John Cremati
To: [EMAIL PROTECTED]
Sent
Does anyone have the following articles from
View Camera Magazine?
John Cremati
"Building a Camera Bellows", Jul/Aug 1996, pp52-54
"Ground Glass Alignment", Nov/Dec 1996, pp57-59
"Designing and Building Your Own Camera", Mar/Apr 1995, pp38-44
I hope this gets you there... John Cremati
http://job.webstar.nl/newcampg.html
- Original Message -
From: Gene Johnson [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Tuesday, January 28, 2003 10:38 PM
Subject: [Cameramakers] blue wide angle 4x5
Hello all,
There was a guy
I found the book Primitive Photography good for inspiration only...
The film holder design lacks a light trap element which is critical.. The
diagrams do help you to visualize though and gets you thinking.. .. John
Cremati
- Original Message -
From: Ter McDonagh [EMAIL PROTECTED
be the glass that is used in the El-Nikors...
John Cremati
For those who are really interested in the exact physical and chemical
properties of a sheet of glass with a high UV transmission :
0% at 280 nm
14% at 300 nm
65% at 320 nm
85% at 340 nm
90% from 360 nm and higher. thickness 2.0 mm
you can e
pounds..(.This is probably the main reason that I have not hooked it up
yet..)
John Cremati
..
Scientific graphics supply catalog that all Nikon El Nikor Enlarging
Lenses were made of a special optical glass to allow
I know that the famous Fresson studio in France had
set up a Enlarger for their secret process which would need a great deal of
UV... I believe that they discuss the camera on their site... Click on the
English for the Enlgish translation... JC
the blower air that cools the film
in the light head...
I will photograph the light head on the camera and send pictures off
list if you want me to ..
Regards,
John Cremati
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This is a good report.. Would they have the references for 20x24?
- Original Message -
From: Uptown Gallery [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Tuesday, March 11, 2003 6:07 PM
Subject: [Cameramakers] Fw: Black and White Films (KMM3450335C0KM)
I inquired of Kodak today about
Why would you? Polaroid film holders are used for Polaroid film..(you would
wear it out prematurely using everything and anything.) Standard film
holders are generally used for film or paper negatives..
- Original Message -
From: Andrey Donchev [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
There is a interesting homemade camera on E-Bay..
Just found it interesting.. John Cremati.
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemitem=2920472167category=15247
I had listed a big old bellows on E-bay in case anyone's interested Item
# 2921134820
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemcategory=15248item=2921134820
rd=1
John Cremati
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