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    Re: A Linhof. For the birds?

    Got that Linhof tripod head,a great head and will support a 50 pounds 8X10 Color Kardon Linhof Camera.The head is worth $270 and can be fitted to other tripods.Tripod itself can only be use in...
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    Re: Lenses- Art Repro

    For 14 meter art work you need 8X10 not 4X5.Take 2,3,or4 photos of the art work in sections with 4X5,moving the camera back for each exposure and stitch he image together.
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    Re: Lenses- Art Repro

    2 or more photos.Move the camera back only for the 2nd photo and use photoshop .
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    Re: Quarz LF lenses?

    For historical aspect of UV photography the only references is from a 1974 reprint of a 1911 Encyclopedia of Photography by Arno Press of New York.In pp550"Victor Schumann using a quartz Spectrograph...
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    Re: Quarz LF lenses?

    Dr.Klaus
    Do you have the means to ground and polish lens? Years ago I got some fused quartz lens blanks- type 106-60mm dia.X4mm,and Homo- 50mm dia.X8mm.I was hoping to polish some simple quartz...
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    Re: Quarz LF lenses?

    Some EL Nikkor could be use for 350-400 nm uv lights.Pinhole with 18A filter is other method.NASA use pinhole cameras in space.
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    Re: Quarz LF lenses?

    We use the uv-Sonnar at work.It cost $8000 in the 1970s.The was also a uv-Nikkor for technical works.I think Cannon and other also produces uv lens.Topon uv lens were uv blocking lens.You need a 18A...
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    Re: Photographing artwork

    Coping 2D/3D artworks and artifacts are part of my duties for the last 30 years.As a government organization we got equipment for the job.You could do the job with less.With lighting the key is for...
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    Re: Camera Obscura growing pains

    Try a low power reading eye glass +1.25 or +1.5 range.
  10. Thread: Tipping-in

    by Roc Chan
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    Re: Tipping-in

    How small are your prints?
    Try dry mounting materials.
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    Re: plans for homemade large format enlarger

    You could use prism/mirror attachments from graphic art cameras to convert vertical into horizontal projection for bigger images.A front surface mirror will also works.
    If I am going to put my 8X10...
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    Re: Alan Greene Homemade Lens

    Binoculars are good.There are 2 achromats plus the optics in the eye pieces in binoculars.Buy some cheap non working camera lens,and take it apart.There will be many interesting optics inside that...
  13. Re: Can a 300mm APO Lanthar be fitted to a Master?

    The dia.of the rear element of the f4.5/30cm Apo Lanthar is 8.6cm and the front is 9cm.The length on a Compound is 8.6cm.The opening on my Technika III is only 7cm so it 's no good for Technika...
  14. Re: Free fall gathering in Algonquin Park this fall

    5 of us was going to drive there ,but only Mr. C Frost and me will be going to join you for this weekend.See you this Fri.
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    Re: How is use of f128 possible/practical?

    The subject of small F stops on Graphic Art Lens came up several times over the years.To controll contrast of graphic art photo sensitive materials,a flash,non subject(white light) exposure is use...
  16. Re: Free fall gathering in Algonquin Park this fall

    See if we can get a group from Ottawa to join you for this outing.
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