Can your enlarger do that?

Discussion in 'Enlarging' started by RalphLambrecht, May 20, 2009.

  1. RalphLambrecht

    RalphLambrecht Subscriber

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    I was wondering if you guys can help me to understand existing enlarger capabilities.

    1. Does your enlarger support Scheimpflug correction?
    2. Is it done by tilting the head, lens plane or both?
    3. Is it a 'free' tilt or is the angle of tilt supported by a scale?

    Thanks for your replies in advance!
     
  2. darkosaric

    darkosaric Subscriber

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    I have Meopta Axomat 5a. It has head tilt. It is only for 35mm. No scale for angle.

    Regards,
     
  3. David A. Goldfarb

    David A. Goldfarb Moderator Staff Member

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    I have a tilting neg stage attachment (the "Distortion Correction Attachment") for my Omega D-II. It can tilt the neg along one axis and rotate the neg 360 degrees, so that I can orient the neg along the tilt axis. I can also rotate my easel by moving it around and can tilt it using special shims that cost 25-cents per unit of tilt.
     
  4. RalphLambrecht

    RalphLambrecht Subscriber

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    Are the shims also called 'quarters' by any chance?
     
  5. David A. Goldfarb

    David A. Goldfarb Moderator Staff Member

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    They might be.
     
  6. Thomas Wilson

    Thomas Wilson Member

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    Mine are called paint stirrers.
     
  7. David A. Goldfarb

    David A. Goldfarb Moderator Staff Member

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    Here's a photo of the Omega gizmo with a 4-blade Omega masking attachment on top of it.--

    http://www.apug.org/forums/attachment.php?attachmentid=11716&d=1219169469

    You'll notice my high-tech sliding custom light trap around the collar that normally holds the condenser lenses, but in this case is holding an Aristo Hi-D cold light source. If you're familiar with the D-II, you may also observe that I've used advanced cold forging technology to customize the lever that raises the head to accommodate the added width of the negative mask, which was really made for the D-5 and later enlargers.
     
  8. bdial

    bdial Subscriber

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    LPL 4500, no built-in tilting capability
    Durst M-601 Head tilt with scale
     
  9. glbeas

    glbeas Member

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    My Beseler 4x5 has head and neg stage tilt, no scales. I wish it had a click stop at the zero position, it's a pain putting it back.
     
  10. GrantR

    GrantR Member

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    I did a spit take when I read that.
     
  11. srs5694

    srs5694 Member

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    I've got a Philips PCS130.

    1. Yes
    2. Both. See attached diagram from the manual.
    3. Both the head and the lens stage rotate freely, although they both "click" into place in the conventional non-tilted position. Knobs tighten them into position at any angle so the rig doesn't get accidentally knocked out of alignment.

    I've never actually used this feature of my enlarger, so I don't know how well it works in practice.
     

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  12. Ole

    Ole Moderator Staff Member

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    Yes, yes, and scale.

    On both.

    An Opemus 6, and a Durst L138S.
     
  13. Phil

    Phil Member

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    1. Yes
    2. Lens plane - 2 directions
    3. Scales - and a pin to lock it at zero

    Elwood 8x10
     
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  15. David A. Goldfarb

    David A. Goldfarb Moderator Staff Member

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    I used to have a PCS 130, and I thought the neg stage tilt worked pretty well, but the head tilt was a bit awkward.
     
  16. RH Designs

    RH Designs Advertiser

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    My LPL 7700 has the ability to rotate the entire head, and the lens stage. Both have scales and click-stops.
     
  17. Tom Kershaw

    Tom Kershaw Subscriber

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    Ralph,

    I use a Meopta magnifax 4a color 3 head: http://www.meopta.com/index.php?id=308 which does have various correcting functions, 90% head tilt etc. However, my DeVere 5108 does not a head tilt function, which if present would probably increase the size of the enlarger somewhat.

    Tom.
     
  18. Blighty

    Blighty Subscriber

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    My Durst AC707 has tilting head and lens panel (with scale).
     
  19. TimVermont

    TimVermont Subscriber

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    Yes, yes, scale on Durst. I think a full-rotary neg carrier with masking blades was available as an accessory, but I don't have it, just a regular one.
    No on Zone VI
     
  20. Daniel Ferri

    Daniel Ferri Member

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    Ralph,
    correcting perpective with an enlarger is the same principle as correcting in camera, except that the subject is the negative, and the image your easel.

    You correct the perspective by changing the angle of each plane; 1-the negative plane, by tilting the enlarger head; 2-the baseboard plane (if not available on your enlarger, use a piece of wood); 3- the plane of the lens, which would spread sharpness over the whole image.

    All planes must meet at the same point. Hard to describe in words, but if you follow the rules of the schimpflung effect as described for large format cameras, these rules are the same for enlargers.

    Look up the manual for Durst Laborator 138, it has these adjustments
    rgds Danny
     
  21. Krockmitaine

    Krockmitaine Subscriber

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    Ralph,
    On my Kienzle Tempomat 912.
    1.Yes
    2.Yes
    3. Free rotation with click for the center position. No scale
     
  22. Daniel Ferri

    Daniel Ferri Member

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    Gary,
    I know it is a pain, and making the head is not acruate enough.

    In your preferred neg size, take a piece of fogged and processed film,ei. black, like the leader in a roll of processed film, before frame number 1.

    Scratch 2 lines diagonaly on the emulsion side, with a needl,e or a sharp tool (not a scalpel), do not go through the film, just the emulsion.

    You can then easily centre your neg in the negcarrier.

    Enlarge this in your enlarger, lens wide open, do not use easel.
    you will see a white cross on the baseboard focus as best
    move your enlarger head adjustment until best focus is obtained in all corners,
    With a ruler and a marker, copy the cross on the baseboard.

    Your enlarger is then aligned.
    After using your enlarger to correct the perspective, all you have to do is put in the neg with the cross
    and match it to the cross on the baseboard.

    rgds
    Danny
     
  23. ic-racer

    ic-racer Member

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    The Durst L1840 and L184 use lensboard, head and baseboard tilt. There are scales on the lensboard and the head, but no tilt scale on the baseboard. The head and baseboard both have robust locking pins to hold them in the zero position. The lensboard has a spring/ball detent at zero.

    [​IMG]

    Other enlargers I have don't support Scheimpflug correction. Omega D5500 and Minolta Mod III.
     
    Last edited by a moderator: May 21, 2009
  24. Ian Grant

    Ian Grant Subscriber

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    My Durst M601 & 670 allow full control allowing Scheimpflug correction, so does my De Vere 5108.

    Ian
     
  25. glbeas

    glbeas Member

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    Actually I have a set of mirrors I can mount up to do this. Does a pretty respectable job too.
     
  26. kraker

    kraker Subscriber

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    On my Durst M707, I can tilt the head and the lens plane, both with a scale and a distinct "stop" at zero.

    Does this mean we can expect a section on Scheimpflug correction in the next edition of Way Beyond Monochrome? :D