Switch to English Language Passer en langue française Omschakelen naar Nederlandse Taal Wechseln Sie zu deutschen Sprache Passa alla lingua italiana
Members: 70,549   Posts: 1,544,636   Online: 682
      
Page 1 of 3 123 LastLast
Results 1 to 10 of 21
  1. #1
    127
    127 is offline
    127's Avatar
    Join Date
    Feb 2004
    Location
    uk
    Shooter
    127 Format
    Posts
    581
    I'm sure everyone has seen this mentioned on other sites, but seeing as there's a pinhole forum here, that someone should post a link: http://www.pinholeday.org/

    Saturday 25th April is "World Pinhole Day". Go out and take a picture on that day, using any kind of "non-lensed" camera (ie zone-plate=good!), and submit it to the pinholeday site.

    I've only done a few pinholes, but I've stocked up on grade 1 paper, and my card index box camera is ready to go...

    Whats everyone got planned?

    Ian

    (this is nothing to do with me - just passing on the link).

  2. #2
    Eric Rose's Avatar
    Join Date
    Nov 2002
    Location
    Calgary AB, Canada
    Shooter
    4x5 Format
    Posts
    4,256
    Images
    73
    Pin - heads unite
    www.ericrose.com
    yourbaddog.com

    "civility is not a sign of weakness" JFK

    "The Dude abides" - the Dude

  3. #3

    Join Date
    Sep 2002
    Shooter
    Multi Format
    Posts
    1,966
    Images
    1
    I missed last year due to son's birthday... gotta remember this time... someone post a reminder here next Friday please!

  4. #4
    bmac's Avatar
    Join Date
    Sep 2002
    Location
    San Jose, CA
    Posts
    2,156
    Images
    9
    Ok kids, I have located my lensboard with the f250 laser cut pinhole in it. I'll be doing a little 8x10 pinhole with some hp5+.

    For those (like myself) who are still wondering about exposure, check out this site. good info!

    http://www.mrpinhole.com/exposure.php
    hi!

  5. #5

    Join Date
    Apr 2004
    Location
    Montreal,QC
    Shooter
    Medium Format
    Posts
    334
    Images
    18
    I am in too with my 150mm f288 pinhole lens board
    I'll be doing 4x5 polaroid type 55s since i dont have many 8x10 sheets to burn like some people

  6. #6

    Join Date
    Sep 2002
    Shooter
    Multi Format
    Posts
    1,966
    Images
    1
    I'll be using paper...

  7. #7
    gma
    gma is offline
    gma's Avatar
    Join Date
    Mar 2004
    Location
    Texas
    Shooter
    Multi Format
    Posts
    793
    Images
    9
    I have never made a pinhole picture, but I am willing to give it a try. I don't have a precision pinhole, so I will have to improvise. I do have some very thin brass that I can punch a fine pin through and surface polish to remove any burrs. I will use Agfa APX 100 4x5 film. I am guessing times of 5 to 10 seconds for bright sunlight.
    [FONT=Century Gothic][/FONT][SIZE=7][/SIZE][COLOR=DarkOrange][/COLOR] I may be getting older, but I refuse to grow up!

  8. #8
    Aggie's Avatar
    Join Date
    Jan 2003
    Location
    So. Utah
    Shooter
    Multi Format
    Posts
    4,925
    Images
    6
    Maybe this will help some:
    I have the leonardo pinhold camera. This was part of the instruction sheet that came with it.


    4x5 camera

    focal length pinhole size F stop

    1.5" ,010" f150

    3" .012" f250

    6" .017" f352


    8x10 camera

    3" .012" f250

    6" .017" f352



    approximate times for exposure using tri-x film in bright sun:

    1 1/2 " camera 2-3 seconds

    3" camera 4-6 seconds

    6" camera 9-14 seconds

    From there your best questtimate would work
    Non Digital Diva

  9. #9

    Join Date
    Sep 2002
    Shooter
    Multi Format
    Posts
    1,966
    Images
    1
    check the calculators at www.mrpinhole.com to take the guesswork out.

  10. #10
    bmac's Avatar
    Join Date
    Sep 2002
    Location
    San Jose, CA
    Posts
    2,156
    Images
    9
    If you really want to take the guesswork out, and plan on using hp5+, I have a modified mrpinhole chart for it with my f280 pinhole. Reciprocity is also figured in.

    http://bmacphoto.com/pinhole
    hi!

Page 1 of 3 123 LastLast


 

APUG PARTNERS EQUALLY FUNDING OUR COMMUNITY:



Contact Us  |  Support Us!  |  Advertise  |  Site Terms  |  Archive  —   Search  |  Mobile Device Access  |  RSS  |  Facebook  |  Linkedin