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  1. Re: Someone selling a "Red Dot" Prototype Dagor for $32,000.00

    Well, it's intriguing. The Kern Dagors were made in Switzerland. This one is marked as being made in Germany. Red dot? a bottle of Testor's model paint could supply that. As for it being an Artar,...
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    Re: 14" Red Dot Artar Coverage?

    Alao, I recently read on the Inet that the entire British royal fambly were lizardian (sic) aliens in human guise. ;)
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    Re: 14" Red Dot Artar Coverage?

    The 14" would likely work well for head & shoulders portraits. What do the corners matter in a portrait? I'd rather them soft, and the 16 1/2 Artar is my portrait lens for 8x10. I focus on the eyes,...
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    Re: 14" Red Dot Artar Coverage?

    Rubbish. It might 'illuminate', but that does not mean 'cover'. Were you enlarging those negatives? Or making them at close ratios? I think not.

    Goerz claimed that the shortest Artar for 8x10 at...
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    Re: Flash powders, an education.

    Stone, if we are thinking of the same thread, there was one where a very poorly informed person kept persistently posting advice ranging from bad to downright stupid and likely to land the follower...
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    Re: bogen 3047 vs. tiltall

    Leitz or Marchioni (Marchioni is the ur-Tiltall), I've had both and they're of equal quality with some very small detail differences.
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    Re: Post your Pixies! :)

    Looks like the sword might be the real deal.
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    Re: Ross/Zeiss Convertible Anastigmat Info

    I had the same lens made by Zeiss. It's a very nice lens, has a bit of the Dagor smoothness and very little flare - I didn't think the results from individual components were particularly...
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    Re: This lens is still a mystery

    "this exact lens" would carry no markings... (bewildered smiley)
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    Re: Why shooting large format in these times?

    Yep, and I enjoy it to boot. I'm no artist, though - a craftsman is what I aspire to.
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    Re: This lens is still a mystery

    Uniform System 16 equals f:16, US 32 = f:22, and so on. Therefore US 512 equals f:90. If the lens is 7" focal length, the aperture at 16 will be slightly less than one-half inch in diameter - which...
  12. Re: Your eyesight goes bad. Your doctor says time for a choice.

    Let's not. In my right eye, without glasses or other aids I can focus from about 11 to about 14 inches. My left eye is more or less fixed at about 12 inches. Both eyes are astigmatic, I've never had...
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    Re: This lens is still a mystery

    Looks like a WARR - Wide angle Rapid Rectilinear. Have you looked to see how the front and rear cells are made up? How much of an 8x10 GG does it cover? By 'cover' I mean an image that will be fairly...
  14. Re: 8x10 Deardorf Base Plate Screw Hole too deep

    Deardorff = 2 effs; Linhof = 1 eff. The easiest way to remember this is to get one of each.
    As for the tripod, I'd not use a QR of any sort. My V8 is an early FS and did not have a baseplate; when...
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    Re: PITB Question: what lens is this?

    If you're lucky it could be Radar f:4.5, a nice smooth/sharp Tessar-like lens.
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    Re: PITB Question: what lens is this?

    Judging by that picture it could be anything. We can't ID what we can't see.
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    Re: Dagor and clones on chrome film

    Another pointer re. Dagors, they have focus shift. Always check focus at the aperture you plan to use, also they don't get nicely sharp until somewhere between f:11 and f:16. Wide open they have a...
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    Re: Dagor and clones on chrome film

    By all means keep your lenses and try them!
    I've used a 6" uncoated N.Y. Dagor on the old Fuji 50 in 4x5 and Kodachchome 64 (120). About the only trouble you are likely to have is in a high contrast...
  19. Re: What Are Users Expectations From A Lens ???

    Or paper-weight. :)
  20. Re: What Are Users Expectations From A Lens ???

    That's a large can with many worms! It really depends on the format and the use to which the camera is put, also it's changed over the years.
    When I was doing semi professional work with SF, MF,...
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    Re: What length Petzval for 5x7 portraits?

    That's what I was thinking. A good Petzval has a really nice smooth look when you get away from those dreadful nauseating swirlies.
  22. Re: Rodenstock stops production of several lenses

    I'll add that a lens is somewhat magical in that it will last indefinitely with decent care. No moving parts to wear, the only way to damage one is abuse or accident.
    The antique lens of today will...
  23. Re: Need some assistance in taking out scratches in brass....

    Polishing, then acid etching followed by lacquering gives a nice finish too. Practice on scrap metal!
  24. Re: Need some assistance in taking out scratches in brass....

    Bronze wool is mainly for wood (so you don't get rust spots from bits of steel trapped in the grain) and very soft surfaces, it's expensive and doesn't have the 'tooth' of steelwool.
    How on earth...
  25. Re: Need some assistance in taking out scratches in brass....

    If there are large/deep scratches, sand them out with 600 grit paper used wet, then finish it with OOOO steel wool. Here's something to keep in mind: as long as all the marks are uniform and run in...
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    Re: Focus point

    ^^ What Dan said ^^
    But, here's what I'd do: I'd build the camera without a fresnel. With the possible exception of small aperture wide angle lenses, you don't need one as long as you use an...
  27. Re: Difference between Xenotar 135/3.5 and Zeiss Planar

    The original Sonnar was an f:4.5, designed by Bertele, and made by Contessa-Nettel for their folding cameras. I had one, until I actually disassembled it I thought it was a Tessar under a different...
  28. Re: Difference between Xenotar 135/3.5 and Zeiss Planar

    Yes there are, and it's a bit of a atretch to call some of the dG types. The original Planar was designed by Rudolph in the late 1890s, IIRC, and was a truly symmetrical six-element Gauss type...
  29. Re: Difference between Xenotar 135/3.5 and Zeiss Planar

    'Planar' and 'Xenotar' are trade names. 'Double Gauss' is a specific design. It may be productive to bear this distinction in mind...
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    Re: Shim stock - how to cut it

    I've shimmed more than a few things with paper, believe it or not. I'ts a lot more durable than you might expect, but it's mainly a "one time" shim - use metal if it's going to be dis-and...
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    Re: Shim stock - how to cut it

    Also, go over the burred side of the cut edge with a tiny folded piece of 600 grit sandpaper, you don't want the burr to give you inaccurate spacing. Are you using brass or steel?
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    Re: Lack of Sharpness; need Help!

    I use a pneumatic release, it has a 1~meter long tube connecting the bulb to the slave cylinder which screws into the shutter. On some lenses I need to use an angled extension on the slave, to keep...
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    Re: DIY Iris apeture

    Maybe. I'd look into cutting them from carbon fiber, first. The time to get up to speed, plus the expense for equipment and software means that I will likely never mess with the emerging tecnology of...
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    Re: Protar vs. Tessar

    There's something very strange going on in the way the capitalisation in that quote changed / inverted. !

    cut & paste - Originally Posted by { e. Von hoegh

    they don't. They're far too...
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    Re: Protar vs. Tessar

    They don't. They're far too expensive to throw at someones head.Or anything else.
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    Re: Protar vs. Tessar

    Now that I think of it, even the tiny 4" would leave a mark...

    And, (just to stay somewhere in the vicinity of the topic) a good Tessar, particularly the slower ones can be stunningly sharp as...
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    Re: DIY Iris apeture

    They could, if the aperture mechanism was originally designed this way, with sockets for the pins on each side of the blades - but I wouldn't want to assemble one made this way, it would be a...
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    Re: Protar vs. Tessar

    This of course depends on the focal length of the Artars in question and the velocity at impact. For instance, a brass-barrel 6" Artar will never have the kinetic force of say a 24" aluminum barrel...
  39. Thread: Film area

    by E. von Hoegh
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    Re: Film area

    That's the rule I've used. You have to take into account the total area of film, not just the area of the exposed frames.
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    Re: Protar vs. Tessar

    It will, if the Protar is coated and the Dagor isn't.
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