Page 6 of 6 FirstFirst ... 456
Results 51 to 58 of 58

Thread: LF Pinhole - design and building

  1. #51

    Join Date
    Jul 2015
    Location
    Sonoma County, California
    Posts
    94

    Re: LF Pinhole - design and building

    Good job Barry! Hi Don!

    -Ned

  2. #52

    Join Date
    Aug 2014
    Location
    Greece
    Posts
    14

    Re: LF Pinhole - design and building

    Keep it up Barry!

  3. #53
    Tin Can's Avatar
    Join Date
    Dec 2011
    Posts
    13,192

    Re: LF Pinhole - design and building

    Wacky camera, first try

    Looks like light leaks, shot on 11X14" 2 side-X-Ray 250mm Zone Plate Actual image size 11x11"

    20 seconds f180 hole. 14" extension, Packard shutter

    Copied with cell phone on LED Pad

    Wacky Camera by TIN CAN COLLEGE, on Flickr

    11X11 X-Ray 250mm Zone Plate by TIN CAN COLLEGE, on Flickr
    sin eater

  4. #54
    Tin Can's Avatar
    Join Date
    Dec 2011
    Posts
    13,192

    Re: LF Pinhole - design and building

    After sleeping on it, I think a lot of my problems with Wacky Camera are internal reflections

    It is made of aluminum sheet metal, painted black long ago

    I am going to buy Scope Flocking to put inside http://www.scopestuff.com/ss_flok.htm

    I also will try different Zone Plates and Pinholes
    sin eater

  5. #55

    Join Date
    Nov 2017
    Posts
    278

    Re: LF Pinhole - design and building

    Quote Originally Posted by Tin Can View Post
    After sleeping on it, I think a lot of my problems with Wacky Camera are internal reflections

    It is made of aluminum sheet metal, painted black long ago

    I am going to buy Scope Flocking to put inside http://www.scopestuff.com/ss_flok.htm

    I also will try different Zone Plates and Pinholes
    Why would internal reflections only be in a single direction?

    Is the direction the line marks are the same as the movement of the darkslide? I mean could it be you have leakage when pulling the darkslide. That each line is the edge of the darkslide.
    Expert in non-working solutions.

  6. #56
    Tin Can's Avatar
    Join Date
    Dec 2011
    Posts
    13,192

    Re: LF Pinhole - design and building

    The bottom inside surface is really shiny...

    I never completely removed the DS as 3" of the DS slot side of film is never exposed and both sheets processed totally clear in that area.

    So I think the light traps are sealing the DS, and IDK...




    Quote Originally Posted by Havoc View Post
    Why would internal reflections only be in a single direction?

    Is the direction the line marks are the same as the movement of the darkslide? I mean could it be you have leakage when pulling the darkslide. That each line is the edge of the darkslide.
    sin eater

  7. #57

    Join Date
    Jan 2006
    Location
    Memphis, TN
    Posts
    291

    Re: LF Pinhole - design and building

    I like the Spampod.
    Ron McElroy
    Memphis

  8. #58
    Tin Can's Avatar
    Join Date
    Dec 2011
    Posts
    13,192

    Re: LF Pinhole - design and building

    I don't eat Spam, but will when the time comes

    However I just installed 3/8" floor flange and a bit of pipe for third leg

    Waiting on 0.8mm pinhole to test again

    Mr Pinhole told me so

    Quote Originally Posted by Ron McElroy View Post
    I like the Spampod.
    sin eater

Similar Threads

  1. LF Pinhole camera design and building?
    By Barry Kirsten in forum Feedback
    Replies: 10
    Last Post: 4-Feb-2017, 12:38
  2. Replies: 1
    Last Post: 4-Jun-2015, 11:56
  3. Pinhole camera design for 14"x14" x-ray copy film
    By butterflydream in forum Cameras & Camera Accessories
    Replies: 6
    Last Post: 8-Sep-2008, 11:18

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •