Switch to English Language Passer en langue française Omschakelen naar Nederlandse Taal Wechseln Sie zu deutschen Sprache Passa alla lingua italiana
Members: 70,274   Posts: 1,534,648   Online: 1119
      
Results 1 to 8 of 8
  1. #1
    Mainecoonmaniac's Avatar
    Join Date
    Dec 2009
    Shooter
    Multi Format
    Posts
    2,958
    Images
    6

    How would you mount this monster enlarger lens

    I just bought on Ebay for $72, a Schneider kreuznach componon 5.6 / 360 enlarger lens. I saw the photos and I thought it was small than it really is. I'd like to mount it on my 45MX with a stage conversion for a lens turret. The board it came with is larger than the standard Beseler 45mx lens board. My plan is to convert my 45MX to be able to print 5x7 negs.
    Attached Thumbnails Attached Thumbnails monster_lens.jpeg  

  2. #2

    Join Date
    Feb 2009
    Shooter
    Large Format
    Posts
    662
    A 360mm lens is impractical for 5” x 7” enlarging.

    To make a 9” wide projection of the roughly 4.75” wide image rectangle of the negative requires about 1593mm from the negative to the print and the center of the lens needs to be 549mm from the negative.

    You'd need 2109mm from negative to print to make a 17" wide image for a 16" x 20" print.

    These approximations give us a reasonable idea of the distances needed.

    You might get the needed negative-to-print distance by obtaining the horizontal projection brace for the 45MX and project onto a wall.

    A greatly extended lens mount (a long lens cone) could be fabricated to fit the 45MX, but it’s not practical with such a long lens. A much better choice is to obtain a 180mm or 210mm lens. These are designed to fully cover the 5” x 7” negative at any practical magnification.
    Last edited by Ian C; 12-13-2011 at 01:02 PM. Click to view previous post history.

  3. #3
    Mike Wilde's Avatar
    Join Date
    Aug 2006
    Location
    Misissauaga Canada
    Shooter
    Multi Format
    Posts
    2,939
    Images
    29
    This may make a very nice taking lens ( I know, flat field and all...) for shooting slow film, and hand coated film/alt process stuff with low ISO's. In these applications, a hat over the lens while the darkslide is pulled or reinserted works just fine, or an internal shutter behind the lens, as old cameras had.
    my real name, imagine that.

  4. #4
    ic-racer's Avatar
    Join Date
    Feb 2007
    Location
    Midwest USA
    Shooter
    Multi Format
    Posts
    6,177
    "how" or "why" would one mount that on a mx45...

  5. #5
    Mainecoonmaniac's Avatar
    Join Date
    Dec 2009
    Shooter
    Multi Format
    Posts
    2,958
    Images
    6
    I think I bought the wrong lens because it was a bargain to make a 5x7 enlarger, but Mr. Wilde has given an idea to make it large format picture taking lens. I would have to say that it's the biggest chunk of glass I own.

  6. #6
    ic-racer's Avatar
    Join Date
    Feb 2007
    Location
    Midwest USA
    Shooter
    Multi Format
    Posts
    6,177
    Quote Originally Posted by Mainecoonmaniac View Post
    large format picture taking lens.
    Perhaps it may work, though, it is quite a bit too big to just screw into a Copal #3.

  7. #7

    Join Date
    Feb 2011
    Shooter
    4x5 Format
    Posts
    43
    I have one of these lenses that I use with a Packard shutter on my 11x14 view camera.

  8. #8
    Mainecoonmaniac's Avatar
    Join Date
    Dec 2009
    Shooter
    Multi Format
    Posts
    2,958
    Images
    6
    Wow you sure shoot large. Is it a sharp lens?



 

APUG PARTNERS EQUALLY FUNDING OUR COMMUNITY:



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