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    Happy 120th Birthday, Wollensak!

    The Rauber and Wollensak Optical Company was started on July 1, 1899. Happy 120th birthday to the company that brought us the Verito, Vitax, Velostigmats, Raptars, and scores of other great lenses,...
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    Re: Lens caps? Bought or made?

    SK Grimes makes custom, perfect-fit lenscaps. If you want a lasting solution for a lens you value, open your wallet and let SK Grimes delight you.
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    Re: Ring size for Wollensak 15" f/5.6?

    This is an Alphax #4 shutter, and needs a flange with a 2.62”×30tpi thread.
  4. Re: Wide angle soft or diffuse focus lenses to cover 8x10?

    When opened up larger than its nameplate aperture of f/12.5, the 159mm (6.25”) Wollensak IIIa Extreme Wide Angle Lens exhibits pleasing soft focus aberrations and covers 8x10 with room to spare. Some...
  5. Re: Korona 12x20 compatibility with Lotus or Chamonix Film Holders?

    Thank you, Richard, your expertise and services should have been on my radar as I was considering holders.
  6. Re: Korona 12x20 compatibility with Lotus or Chamonix Film Holders?

    Sorry, this was by no means a comprehensive survey of 12x20 film holders, and I did not consider S&S. Perhaps others can volunteer some firsthand accounts.
  7. Re: Korona 12x20 compatibility with Lotus or Chamonix Film Holders?

    I’ll answer my own question by way of follow-up for others who may be interested.

    I have been looking to acquire additional 12x20 holders for my Korona for over a year. Virtually no original...
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    Re: Mystery Wollensak Raptor...

    Just for fun, the 1946 price lists are the only ones to offer coating (at an extra charge) on Velostigmats before the name change to Raptar in 1947. Thanks, Smithsonian Libraries! ...
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    Re: Mystery Wollensak Raptor...

    I have a very early “Wocote” Velostigmat (not yet Raptar!) from 1946, and it has a purple W-in-circle logo, for whatever that’s worth.

    Alas, I don’t have any insight into the lack of serial...
  10. Re: New Resource for Wollensak Lenses and Shutters

    The 88mm f/1.4 Oscillo Raptar drawing is included in the Surplus Shed CD of scanned Wollensak Optical drawings. The lens is symmetrical, each cell having four elements in three groups.

    The CD is...
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    Re: Mystery Wollensak Raptor...

    Definitely a Raptar Series II (Tessar-type) in an Alphax #4 shutter. Covers up to 5x8 per the Wollensak catalogs.
  12. Re: New Resource for Wollensak Lenses and Shutters

    I haven’t found documentation of a Verito shorter than 5”, but if any one has such a reference, I would be happy to incorporate it.
  13. Re: The Intrepid 8x10 Mark II. - It is in the mail!!

    S.K. Grimes is still very much in business.
  14. Re: New Resource for Wollensak Lenses and Shutters

    Sorry, Randy, Wollensak's process and enlarging lenses are a separate, even more abstruse subject and are out of the scope of the Compendium, which focuses on still camera lenses and shutters.
  15. Re: New Resource for Wollensak Lenses and Shutters

    Thank you, Dan, for the suggestion. I’ve supplemented the Alphax and Betax Compendium descriptions with a link to the detailed dimensional information.

    Good question about whether the small...
  16. Re: New Resource for Wollensak Lenses and Shutters

    I mis-typed 850 Hudson Ave above when I meant 872 Hudson Ave in Rochester.

    190202
  17. Re: New Resource for Wollensak Lenses and Shutters

    Mark, thank you for the correction and I’ve already made the fix. I’ve had a Velostigmat Series I apart in my hands and it is two pairs of cemented doublets in each cell. Larger image circle than the...
  18. Re: New Resource for Wollensak Lenses and Shutters

    Thank you for your kind words, Renato and Mark.

    I took the forum thread on Wollensak serial numbers as my starting point several months ago, and back in January I spent hours combing through all...
  19. New Resource for Wollensak Lenses and Shutters

    I have compiled a Wollensak Lens and Shutter Compendium, a guide to all Wollensak commercial lenses and shutters made for still cameras from 1899 to 1972, including basic product specifications and...
  20. Re: Experiences with WA and extreme WA lenses for 11x14

    Wollensak Velostigmat Series III f/9.5 11x14 (9”) and Wollensak Extreme Wide Angle Series IIIa f/12.5 11x14 (also 9”). Both come or fit directly into Alphax/Betax shutters and the latter in...
  21. Korona 12x20 compatibility with Lotus or Chamonix Film Holders?

    If any forum members have used either Lotus or Chamonix film holders with their Korona 12x20 camera, could you please comment on compatibility in practice?

    I know both the Lotus and Chamonix...
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    Re: Service an Ilex shutter?

    Some of the old Valera Camera Repair manuals/course materials offer illustrated, step-by-step repair instructions for many shutter types.

    These suface occasionally on the auction site.
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    Re: Is this worth anything?

    I purchased a Wollensak Regular shutter in very much the same condition, confident that I could re-stack the dislocated aperture blades (aka iris leaves). I couldn’t. Some blades were missing, some...
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    Re: Fast Triplets

    I don’t have examples of the Varium to share, but it is interesting to note that Wollensak pitched this line of lenses as a mid-point between the softness of the Verito and the sharpness of the...
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    Re: Kodak 12" Ektar f4.5 questions

    We are all deeply in Professor Kingslake’s debt. Quite apart from his role designing some of Kodak’s very best lenses, his book “A History of the Photographic Lens” gives tremendous perspective and...
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    Re: Show off your Large Format camera!

    Wonderful Korona glamor shots! I find Koronas to be just about the loveliest cameras in LF, with their lacquered cherry wood and nickel-plated brass. They are also wonderfully light; by far the...
  27. Re: YUP. Here it is...another backpack question. Bear with me...

    I’m very happy with Think Tank Photo’s Airport Accelerator backpack. I use it with my Chamonix 4x5 setup, but I also use it for my 8x10 kit.

    Very well made and comfortable to wear.
  28. Re: Introducing Alphax Betax Shutter Services

    Thank you very much for the kind words and good wishes!
  29. Introducing Alphax Betax Shutter Services

    I am pleased to announce the launch of Alphax Betax Shutter Services, a small, specialty business aimed at servicing Wollensak’s great Alphax and Betax shutters. For detailed services, costs, and...
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    Re: info wanted on 13" Raptar

    The W in the circle (usually purple) is for Wollensak’s trademarked “WOCOTE” coating technology. A very fine lens in a very fine Alphax 4 shutter.
  31. Re: Fujinon 450 C lens in non original copal shutter?

    A fantastic, peerless lens. Congratulations!

    Until you find/have engraved the proper aperture scale, just mentally double all the numbers on the current scale. Your results will be perfect.
  32. Re: Are Optimo dimensions consistent with later Wollensak shutters?

    Just the information I was looking for; thank you very much!
  33. Re: Wollensak Velosigmat triple convert. question

    The Wollensak brochures at Camera Eccentric are a fantastic resource: http://www.cameraeccentric.com/info.html

    This page in particular should answer some of your Series I questions:185880
  34. Re: Are Optimo dimensions consistent with later Wollensak shutters?

    Thank you for the replies. To clarify, the Optimo is definitely a Wollensak product. The question is whether Wollensak kept the thread mount dimensions of their pneumatic Optimo shutters when they...
  35. Are Optimo dimensions consistent with later Wollensak shutters?

    Are the lens mounting threads on Wollensak’s Optimo shutters identical to their later Betax (and Alphax) shutters? In other words, can one unscrew a lens cell from an Optimo #4 and screw it right...
  36. Re: 135mm 4x5 Lens Recommendations - Moderate Budget

    Fujinon 135 CM W - fantastic performance and value.
  37. Re: Lens Comparison: Veritar, Raptar + Fuji medium format

    Love those Wollensaks!
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    Re: AWB and SK Grimes question

    SK Grimes is still going strong, but what about AWB?

    The AWB website is up, but hasn't been updated for about 10 years, and I haven't had a response to e-mails. Has anyone else had recent...
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    Re: Replacing Gundlach Korona Bellows

    +1 for Custom Bellows. Excellent quality, reasonable price, and foolproof.
  40. Re: Determining lens board hole size for Wolly 16” lens

    You’ll need a 54mm diameter lens board hole for this Alphax 3 flange. I found that the Compur 2 sized lens board is just slightly too small for the Alphax 3.
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