Switch to English Language Passer en langue française Omschakelen naar Nederlandse Taal Wechseln Sie zu deutschen Sprache Passa alla lingua italiana
Members: 71,904   Posts: 1,584,567   Online: 1043
      
Results 1 to 6 of 6
  1. #1
    Mustafa Umut Sarac's Avatar
    Join Date
    Oct 2006
    Location
    İstanbul - Türkiye
    Shooter
    35mm RF
    Posts
    3,965
    Images
    108

    8mm Spinner camera ?

    I need a homemade LOMO Spinner camera for 8 mm film. I think 8 mm is the longest film I can buy with investing only 10 dollars and using 8 mm film at panoramic shots will make me to enlarge less but get big , if I am not thinking wrong.
    I cant afford lens but built a sharp knife cut on black film as slit.
    I think using single big roll is not practical , but may be the original reel is big and ı can roll in to smaller canister.

    Any help is welcome ,

    Umut

  2. #2

    Join Date
    May 2010
    Location
    Wismar, Germany
    Shooter
    35mm
    Posts
    161
    Using a whole roll is indeed impractical, but there are no small canisters for 8mm film, as far as I know. You could build them yourself from an old 35mm can though. Just cut it down until your film fits just right and build a the core from a rod of wood or metal. That way, you can fit up to 1,7m into one canister and with such a small format, it should be enough for quite a few 360° pictures.

    One important thing with 8mm film is that it's usually (or only) sold as super-8 or double-8, a 16mm wide film with double perforations that gets spliced into two 8mm strips after exposure and developement. It's basically the same as regular 16mm film, only with different perforations. You could either use 16mm from the start or you need to find a way to expose both parts of the film seperately and splice it later.
    Also 8mm needs very tight tolerances when building. With a 7-10mm lens (normal to portrait for that format), every movement of less than 1/10 mm back or forth can completely ruin your focussing when not using a very small aperture. If you don't have access to professional metal working gear and the experience to use it, I would recommend starting with a bigger format and longer focal length. 35mm is a lot easier to work with, though still not as easy as 120 film.

  3. #3
    Mustafa Umut Sarac's Avatar
    Join Date
    Oct 2006
    Location
    İstanbul - Türkiye
    Shooter
    35mm RF
    Posts
    3,965
    Images
    108
    Moki ,

    Thank you ,

    And What would be the lenght of final negative ? Do you think that there must be a slit behind the lens ? Where can I find a 7 mm lens with aperture ? How the lens spin around the film circle , What would be the speed ? I only want to focus to infinity and may be put a prescanned color screen printed on a transparent medium and merge the screen with positive on photoshop after scan.

    Umut

  4. #4
    Sethasaurus's Avatar
    Join Date
    Sep 2010
    Shooter
    Medium Format
    Posts
    96
    You'll easily find lenses to suit - 8mm movie camera lenses have an iris built-in.
    If you use a 7mm lens and swing it 120 degrees about the centre, you'll achieve a neg of about 16mm wide. So you'll end up with either 8x16mm (or 16x16mm if you use 8mm movie film).
    The slit behind the lens is easy.

    Have a look at this camera: http://www.funsci.com/fun3_en/panoram2/pan2_en.htm#44

    You are doing things at roughly 1/10th scale of the above example.

  5. #5
    Mustafa Umut Sarac's Avatar
    Join Date
    Oct 2006
    Location
    İstanbul - Türkiye
    Shooter
    35mm RF
    Posts
    3,965
    Images
    108
    Sethasaurus ,

    Thank you very much , your link have an extremelly handsom , looks like a antique railroad lamp from Russia , like camera.
    1/10 of the camera would be extremelly cute.

    One new idea is in my mind , When camera rotating , the film slides and records an longer and blurred image. Than we write a code at open source free scientific simulation softwares and compress the result.
    This would be a very interesting project.

    Final negative may be 10 cms to 8 mm or longer.

    How can it be done ?

    Umut

  6. #6
    Mustafa Umut Sarac's Avatar
    Join Date
    Oct 2006
    Location
    İstanbul - Türkiye
    Shooter
    35mm RF
    Posts
    3,965
    Images
    108
    I thinked little bit and found compress process could be done mechanically also but I am not sure and film size could be increased more also.

    I have a camera in my mind for one year which two spools hand cranked and a slit . Its a very small camera but as someone said couple of years ago , its about matching the film slide speed to the subjects speed .

    I am thinking to stabilised the camera like a human carried flying video camera or with a slit which will swing with a weight to right or left when camera yaws right left. But I cant think any further than that.
    I think this can be a movie camera which will be read right to left left to right.
    Well what happens it the film flow be top to down ? It will record crowded streets and the people more naturally ?

    I really need insights.

    Thank you ,

    Umut



 

APUG PARTNERS EQUALLY FUNDING OUR COMMUNITY:



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