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 and include
registration pins and increase size to what ever..... Also there was a
discussion on the Alt-Photo list with in the past few months on a New book
Book - I believe it was "The Book of Alternative Photo Processes" By
Christopher James. with
information on how to make Film holders...Double check this info on the Alt
photo list as it was some time ago...... The book is on my wish list...
I too would like to build a 20x24 but the thing that is holding me
back is the film holders and the bellows.......
I had posted a few things prior on the cameramakers list that I thought was
interesting for building a camera.......here they are again....
..........................
Two of the things that I am
thinking of using in the cameras are found at :
http://www.mcmaster.com/ You can access the items from this home page...
1) Cross Block:
Item #9268K85 (on page # 1066 Item #17) the item is a plastic or stainless
cross block... I thought this would make a great item to fasten the front
lens plate to create the front standard.... using a 1/2 rod to be used
for rise and fall and front to back tilts.
2) Optical Rail with locking platforms:
Item# 60585K41 rail and Item# 605K522 slide and hand brake...
I thought this would make a good low cost optical rail with adjustable
locking platforms to mount the front and rear standards on... as well as the
tripod mount....
...................................................................
I had seen a super design for a 20x24 camera that was for sale on
E-bay... It was super light, Broke down very easily so that one person could
operate it and it used plastic for the ground glass to keep the weight
down...Here is the site that was posted on the carbon list with photos of
what I thought was a excellent design for a 20x24....
http://rmp.opusis.com/misc/camera/camera.html
Here is a site of a nice looking Mammoth Camera:
http://www.jbhphoto.com/bigcam1.htm
Here is the Lotus site for a 20x24 camera .. They want $15,000 for the
20x24 with a one year wait....They also have film holders ($600 for a 20x24)
http://www.lotusviewcamera.at/index.html
I have never made a Large format camera so any suggestions ,
input or
criticisms would be appreciated....Weight will be a big factor...I am
going to make the back and front standard detachable I believe as well as
the bellows...
Let me know what you think....What things do you thing are good design on
all of the cameras viewed ?... Also any hardware leads would be
appreciated...
John
_______________________________________________
Cameramakers mailing list
[EMAIL PROTECTED]
http://rmp.opusis.com/mailman/listinfo/cameramakers
