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  1. Re: soft focus adjustment on a Velostigmat Series II f/4.5

    Using the Velostigmat’s factory-original diffused focus settings of 0-5, you will barely see any difference.

    However, if you uncork the diffusion adjustment as Mark Sawyer generously describes in...
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    Re: Need info on "Alphax Synchro" shutter

    Betax #4 flange/ring is interchangeable with the Alphax.
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    Re: Need info on "Alphax Synchro" shutter

    It’s an Alphax #4; needs a 2.62”x30tpi flange or retaining ring. I don’t know of any off the shelf substitutes.
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    Re: Servicing an old lens... worth it?

    Firstly, that’s a gorgeous Seneca.

    Secondly, your lens/shutter combo dates between 1909 (the introduction of the Autex) and about 1911 (the discontinuation of the Rapid Symmetrical).

    The lens...
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    Re: wollensak 159mm 12.5 shutters question

    Steve, please drop me a PM or e-mail and I’d be happy to discuss your particulars. I wouldn’t want to gum up the thread.
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    Re: wollensak 159mm 12.5 shutters question

    Yep. I love me some Wollensak.
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    Re: wollensak 159mm 12.5 shutters question

    A lens in a Betax #3 shutter will also be a direct fit in a #3 Alphax shutter.

    Just for posterity’s sake, I’ll point out that the Wollensak Series IIIa “EX W. A.” f/12.5 159mm lenses (uncoated,...
  8. Re: Long throw cable release - Betax shutter

    Gebr. Schreck makes all of the Gepe Pro and Silvestri cable releases, and their website claims that all models have a 19mm stroke. Even though Wollensak’s literature claims that a 22mm stroke is...
  9. Re: Need help reassembling an Optimo shutter

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  10. Re: Need help reassembling an Optimo shutter

    I share your affection for the Optimo and I honor you for your painstaking restoration work. How horrible to see your thorough documentation gone in a flash!

    I wish I had Wollensak’s Optimo...
  11. Re: Wollensak 7inch 4.5 Velostigmat looking for front barrel or measurements

    Hi Sean,

    I can’t speak for all Optimo shutters, but Jim_jm confirmed that Optimo #3 front and rear threads are identical. The unfortunate implication is that your lens is either missing an...
  12. Re: Wollensak 7inch 4.5 Velostigmat looking for front barrel or measurements

    Hi Jim_jm: is that a #3 Optimo that you pictured? If it’s not too much trouble, could you also please measure the threads of the front and rear cells? That should remove any doubt about which...
  13. Re: New Resource for Wollensak Lenses and Shutters

    Hi Scott,

    Based on the available catalogs and price lists, it looks fairly certain that Wollensak discontinued production of the Betax #4 in favor of the new Alphax #4 in 1948. If you remove the...
  14. Re: New Resource for Wollensak Lenses and Shutters

    Mike, sorry for the delay in replying, but both your 12” Velostigmat and 12” enlarging Raptar cells should fit directly into an Alphax (or Betax) #5 shutter, no adapter needed. Both should also take...
  15. Re: Which lenses fold up into your field camera? Linhof Tecnika, Horseman, etc. quest

    Using a recessed Linhof adapter, I can fold either a 210mm f/6.8 Graphic Kowa or a 159mm f/12.5 Wollensak Extreme Wide Angle up into my Intrepid 8x10. Both make very light and appealing field...
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    Re: Show off your Large Format camera!

    Great camera, great picture: thanks! I use the same plywood support base with mine.

    With the Compound shutter, could the lens have been a Turner Reich Series II 11x14? It covers the 12x20 format...
  17. Re: Question regarding the Unicolor Uniroller 352

    Jobo 2500 Series tanks worked much better for me on the Uniroller base than the larger diameter expert drums.
  18. Re: Late Wollensak Process Lenses: Designs and Specifications

    Thanks, Karl, I had no idea about the 299mm Wide Field Graphic Raptar. Also f6.8?
  19. Re: Late Wollensak Process Lenses: Designs and Specifications

    Updating with a link to a better scan for posterity: https://alphaxbetax.files.wordpress.com/2019/09/1962-wollensak-raptar-lenses-for-the-graphic-arts.pdf
  20. Late Wollensak Process Lenses: Designs and Specifications

    LF Forum posts and other internet references indicate that some Wollensak process lenses can be used successfully as taking lenses. Examples include the Apo Raptar f/10, the Graphic Raptar Wide Field...
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    Re: Anyone Recognize this camera?

    Oh, and the hardware is not steel, but rather nickel-plated brass. Takes a very nice shine.
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    Re: Anyone Recognize this camera?

    Most of the hardware is the spitting, unmistakable image of a Korona. The spring arrangement on the back doesn’t match later Korona Views, but looks like an earlier version of the same distinct...
  23. Re: Help confirming identity of a no name Wollensak lens

    Those look like the bones of an Auto shutter. Given that the lens barrel is black enamel and that the shutter has the earlier-style appearance, I’d date it between 1915 and 1919.

    As to the lens...
  24. Re: Ideas for new shutters 40 years from now when ours are all dead

    I like the odds of well-maintained, simple mechanical leaf shutters working 40 years from now and long after. My own parochial view encompasses only Alphax and Betax shutters, and earlier this year I...
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    Re: Computar 270mm F9

    Your find is truly excellent. I have this same lens: it covers 12x20 with a little room for movement. It’s also convertible to 475mm by removing the front cell. As mentioned above, the cells are a...
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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.
  29. 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...
  30. 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.
  31. 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.
  32. 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...
  35. 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.
  37. 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.
  38. Re: The Intrepid 8x10 Mark II. - It is in the mail!!

    S.K. Grimes is still very much in business.
  39. 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.
  40. 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...
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