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  1. #21
    Jesper's Avatar
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    A "lens barrel made of drain pipe" you say. Have you seen this?
    http://www.re-inventedphotoequip.com...gurations.html

  2. #22

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    Ah, simple yet elegant! I should order some glass from Surplus Shed and make my own soft focus!

  3. #23

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    Quote Originally Posted by Jesper View Post
    A "lens barrel made of drain pipe" you say. Have you seen this?
    http://www.re-inventedphotoequip.com...gurations.html
    Drain pipe (not perforated) can also be used to make extension tubes. See, for example, http://www.galerie-photo.com/baby-bertha-6x9-en.html

  4. #24
    xya
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    Quote Originally Posted by Dan Fromm View Post
    Chris, thanks for the reply.

    I've had a number of Polaroid MP-4 shutters (so marked), have one in front of me, and have the catalog. There's not a diaphragm or diaphragm control lever in any of the shutters and the only place on them that the word Copal appears is on the shutter speed strip on the side of the shutter. All self-cocking shutters, top speed 1/125. The catalog says nothing about a diaphragm but the illustration shows a shutter with no aperture control lever.

    You have have a different Polaroid Copal shutter that's had an MP-4 shutter's face plate put on it. Or, perhaps, a non-Polaroid Copal Press #1 with, for some odd reason, and MP-4 face plate.
    I have the mp-4 user manual in front of me and it shows a mp-4 shutter with diaphragm set-up from 4.5 to 32. I have my mp-4 stowed away but I'm quite sure that I have several of theses shutters. please have a look http://www.cameramanuals.org/pdf_fil...oid_mp-4-1.pdf page 7

    you have to have the corresponding lenses of course as the blades are in the lens. maybe it's mesleading a bit.
    Last edited by xya; 06-17-2013 at 12:50 PM. Click to view previous post history.

  5. #25

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    Quote Originally Posted by xya View Post
    I have the mp-4 user manual in front of me and it shows a mp-4 shutter with diaphragm set-up from 4.5 to 32. I have my mp-4 stowed away but I'm quite sure that I have several of theses shutters. please have a look http://www.cameramanuals.org/pdf_fil...oid_mp-4-1.pdf page 7

    you have to have the corresponding lenses of course as the blades are in the lens. maybe it's mesleading a bit.
    xya, thanks for the reply. Please read the second part of the user manual, which is here: http://www.butkus.org/chinon/polaroi...aroid_mp-4.htm Go to p. 25, which states explicitly that the lens' diaphragm control ring is used to set the aperture.

    The aperture control you pointed out is used to adjust the lens' aperture when the lens is mounted behind the shutter using the Reduction Kit. You'll have to scroll down the document to find this text.

    Haste makes waste. Or something.

  6. #26
    jp498's Avatar
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    I'd suggest investing in a speed graphic (which has a built in focal plane shutter), then you can use any lens which may or may not have a shutter, such as something homemade with a magnifying glass, a closup filter, reinhold's plastic pipe lens (which I use regularly), cheap enlarger lenses, projector lenses, old tessars, etc...

  7. #27

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    Quote Originally Posted by jp498 View Post
    I'd suggest investing in a speed graphic (which has a built in focal plane shutter), then you can use any lens which may or may not have a shutter, such as something homemade with a magnifying glass, a closup filter, reinhold's plastic pipe lens (which I use regularly), cheap enlarger lenses, projector lenses, old tessars, etc...
    Thanks for the suggestion! I will probably invest in a Speed Graphic eventually but now I am in a DIY-ish mood. I have already sourced a lens and a donor for bellows and hardware, probably even a secondary lens and such. I'd like to thank you all for your help and I'll probably post in the DIY section about the project when I have gathered everything I need and have made final sketches.
    Hint: Art Deco. Both the camera and the results shall be works of art.

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