Page 3 of 4 FirstFirst 1234 LastLast
Results 21 to 30 of 36

Thread: LF Pinhole - design and building

  1. #21

    Join Date
    Jul 2015
    Location
    Sonoma County, California
    Posts
    76

    Re: LF Pinhole - design and building

    That's great Barry! 110 degrees sounds about right --- get close, then closer!

  2. #22

    Join Date
    Jan 2014
    Location
    SW missouri
    Posts
    77

    Re: LF Pinhole - design and building

    New you'd get it straightened out Barry.Looks like a good test shot(you might stand still a little longer so we could get a better look at ya)LOL!
    Good job all round...
    Don

  3. #23

    Join Date
    Oct 2010
    Location
    Brookfield, Vic., Aust.
    Posts
    430

    Re: LF Pinhole - design and building

    Thanks Ned and Don. Another reason I reduced the pinhole size down to 0.4mm is to allow closer focus. I figured that the 0.5mm would not focus under about 1.5m, whereas the 0.4 should be OK to about 10".

    Don, I'm thinking about pinhole portraiture, perhaps a 4x5 dedicated portrait camera and higher speed film. The idea of a selfie of my old mug is not a pretty thought. That job is at the end of a long queue at the moment.

    Cheers to both of you.

  4. #24

    Join Date
    Jun 2008
    Location
    Melbourne, Australia
    Posts
    436

    Re: LF Pinhole - design and building

    Great to see you got the vignetting sorted out.
    As for references, don't forget the "Mr Pinhole site" http://www.mrpinhole.com and the wonderful Pinhole designer program (windows only) http://www.pinhole.cz/en/pinholedesigner/ and for some inspiration - http://fslashd.com

    Personal Ive just finished a 11x14 camera which is adjustable from 210mm to 300 mm.

  5. #25

    Join Date
    Oct 2010
    Location
    Brookfield, Vic., Aust.
    Posts
    430

    Re: LF Pinhole - design and building

    Thanks for those references, Shane. I'd forgotten the f/D site... Keir actually used one of my images in 2015, but I can't post it here because it's 2x3. But a great inspirational site. The 11x14 camera sounds interesting. Do you plan to use it for film or paper (or both), and are you using interchangeable pinholes?

  6. #26

    Join Date
    Nov 2017
    Posts
    85

    Re: LF Pinhole - design and building

    Started this years ago for pinhole day and it is only finished today, just in time. The idea was that it could also be used for the Fuji 75mm I once bought on a fair. But as I now have a real 4x5 it will probably only be used as a pinhole.

    All aluminium construction except for the brass spring to keep the film holder in place. Right now there is a 0.32mm pinhole mounted. I think I'll have to add something to use a cable release.







    Expert in non-working solutions.

  7. #27
    Randy's Avatar
    Join Date
    Dec 2010
    Location
    Virginia, USA
    Posts
    1,204

    Re: LF Pinhole - design and building

    Havoc, wonderful! And thanks for the idea of the film holder spring. I am in the process of making a 4X5 camera from a cigar box and that idea looks like it will fit my camera perfectly, though I may try other materials if I don't have any brass handy.
    https://dl.dropboxusercontent.com/u/52893762/bigger4b.jpg

  8. #28
    Matt Alexander
    Join Date
    Nov 2017
    Location
    Wisconsin
    Posts
    23

    Re: LF Pinhole - design and building

    Quote Originally Posted by Randy View Post
    Havoc, wonderful! And thanks for the idea of the film holder spring. I am in the process of making a 4X5 camera from a cigar box and that idea looks like it will fit my camera perfectly, though I may try other materials if I don't have any brass handy.
    I've used some thin plywood with a similar back design (tight at one end, loose on the other) - it has enough flex to slide the film holder in fine and enough spring to hold it securely.

    Click image for larger version. 

Name:	pinhole1.jpg 
Views:	13 
Size:	45.1 KB 
ID:	177879
    Click image for larger version. 

Name:	pinhole2.jpg 
Views:	13 
Size:	43.3 KB 
ID:	177880
    Last edited by malexand; 3-May-2018 at 09:54. Reason: added photos

  9. #29

    Join Date
    Mar 2004
    Location
    San Francisco Bay Area
    Posts
    283

    Re: LF Pinhole - design and building

    My cigar box pinhole uses the lid to hold the film holder. I cut a slot in one edge of the lid to just admit the holder, added some supports internally and some blackout material around the opening, and the latched lid holds everything together.

  10. #30

    Join Date
    Jul 2014
    Posts
    59

    Re: LF Pinhole - design and building

    Quote Originally Posted by Havoc View Post
    Started this years ago for pinhole day and it is only finished today, just in time. The idea was that it could also be used for the Fuji 75mm I once bought on a fair. But as I now have a real 4x5 it will probably only be used as a pinhole.

    All aluminium construction except for the brass spring to keep the film holder in place. Right now there is a 0.32mm pinhole mounted. I think I'll have to add something to use a cable release.







    Wow! That is one heavy duty pinhole camera. The ultra light plywood and foam core 4x5's I build would not dare to be used in anything but dry weather. But that looks like you could take it out even in more 'interesting' weather.

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
  •