Search:

Type: Posts; User: Whir-Click; Keyword(s):

Page 1 of 13 1 2 3 4

Search: Search took 0.01 seconds.

  1. Replies
    3
    Views
    191

    Re: Photex/Verito Mystery Lens

    Are the front and rear cells single elements or cemented doublets? If the latter, then I would posit Wollensak was re-purposing surplus trim ring hardware from the short-lived f/5 Verito, but that...
  2. Re: Velostigmat f/4.5 with no series marking?

    Wollensak appears to have dropped the Velostigmat “Series II” engraving shortly before the name change to Raptar in 1947. Check the back of the Betax shutter to see if there is an inspection date...
  3. Replies
    10
    Views
    271

    Re: Rapax Shutter Tab

    Excellent, way to go!
  4. Replies
    10
    Views
    271

    Re: Rapax Shutter Tab

    The Rapax is an excellent shutter and worth some tinkering to fix if you’re inclined. To access the internals and try to solve the flash issue, I recommend the following steps:
    -Remove the lens...
  5. Replies
    10
    Views
    271

    Re: Rapax Shutter Tab

    Wollensak called that part the “dust shield,” which pretty much sums up its function. As you noted, it has the added benefit of serving as an indicator that the shutter is cocked.

    The X-synch...
  6. Re: Still can't find a lens for the Travelwide 4x5 years later!

    A 90mm f/6.8 Optar or Raptar also works like a charm on the Travelwide.
  7. Replies
    36
    Views
    2,682

    Re: Rare lens maybe only exists in catalog

    I’m curious to know if anyone has a 20” f/5 Vitax.

    Wollensak added this lens to their catalog in 1923, along with a “Vitax extension lens.” The extension lens is a front cell which interchanges...
  8. Replies
    94
    Views
    52,348

    Re: Velostigmat Series II; Info and Images

    Wollensak launched the “Velostigmat” line in 1909 with the Series I and Series III lenses. The Series II f/4.5 was added in 1911, but the numbering clearly suggests it had been contemplated from the...
  9. Re: Wollensak Velostigmat Series II 12" inch f4.5 diaphragm shape

    For a Studio shutter, that’s above average.

    I find that any asymmetry is barely visible at normal portrait taking apertures (f/16 and wider), and I have never noticed an ill-effect on the film...
  10. Re: 24 inch Red Dot Artars: Brass vs Aluminum?

    Brass RD 24” here; I had SK Grimes cut standard 67mm filter threads into the front cell. Couldn’t be happier. 215985
  11. Re: Lens Nimenclature and lens Designe: Raptar vs Paragon

    Here are the optical designs of many commonly encountered Raptar lenses, from the 1954 Wollensak catalog.
    215519
  12. Replies
    77
    Views
    10,245

    Re: Carrying the 12x20

    I measure about 6.5” internal depth on my Gator case at the shallowest, most tapered point.

    It’s a padded but flexible case, so even though the Gundlach catalog lists my 12x20 as 7.25” thick, it...
  13. Re: Suggest a 12" (300mm) lens for portrait work on 8x10?

    If you found the uncoated Wollensak Velostigmat Series II lacking a bit of punch for your taste, consider the coated Raptar 4.5 successor. A little more contrast, but with the classic Tessar...
  14. Replies
    15
    Views
    921

    Re: 150mm - 165mm for 4x10

    *For the sake of completeness I’ll add that Wollensak did briefly make a third 6.25” wide angle lens that covers 8x10, a f/6.8 4/4 lens with optional coating offered only from 1946-1947. This version...
  15. Replies
    15
    Views
    921

    Re: 150mm - 165mm for 4x10

    The Wollensak jungle isn’t so bad if you have a guide. There are two common* Wollensak 6.25” (159mm) wide angle lenses that cover 8x10: a f/9.5 and a f/12.5.

    The f/9.5 is an 8/4 design available...
  16. Thread: optar 203mm

    by Whir-Click
    Replies
    13
    Views
    5,821

    Re: optar 203mm

    This is an old thread, but since I have a new interest in the lens I’ll post a reply to the OP’s question for posterity.

    The 203mm f/7.5 Raptar (also Optar) is the same basic 4/4 dialyte type as...
  17. Replies
    2
    Views
    369

    Re: Mounting a 14" f6 Veritar on Toyo 810M

    That is one good looking Veritar!
  18. Re: What is this shutter on a Vesta Portrait lens?

    avid1, the short answer is maybe, and I’ve just sent you a longer answer in a PM.
  19. Re: What is this shutter on a Vesta Portrait lens?

    avid1, what a drag! Is there a screw missing in the circled area? With the shadow I couldn’t be sure, but a missing blade screw is the only thing I can think of that could cause the blade to slip...
  20. Re: What is this shutter on a Vesta Portrait lens?

    As usual, Mark is right! I measured, and although the “TB” shutter and the Alphax have identical minimum and maximum aperture dimensions, the Alphax shutter’s diaphragm indicator lever travels...
  21. Re: What is this shutter on a Vesta Portrait lens?

    Hi avid1, that Alphax shutter will work with your Vesta lens cells. It appears to have a lever to be fired by an external solenoid rather than internal flash synch. My guess is that the Ilex box and...
  22. Re: What is this shutter on a Vesta Portrait lens?

    avid1, beautiful picture! You’re really showing the Vesta’s characteristics to great advantage.

    It couldn’t be simpler to put the 7” Vesta in an Alphax or Betax #3, just unscrew the cells from...
  23. Re: What is this shutter on a Vesta Portrait lens?

    I have been intrigued by the shutter in the post, not only because it doesn’t appear in any Wollensak catalogs, but also because the “I” in “TBI” does not appear original.

    I had the good fortune...
  24. Replies
    12
    Views
    3,236

    Re: Introducing Alphax Betax Shutter Services

    Just a modest update that I now also offer CLA services on Wollensak's Studio shutters and iris diaphragm barrels.
  25. Replies
    9
    Views
    1,022

    Re: Aerostigmat 10'' 250mm f/4.5

    The compendium on my website is limited to Wollensak lenses and shutters for commercial still cameras: I had to set a boundary or I’d go crazy trying to encompass the entire menagerie of Wollensak...
  26. Replies
    33
    Views
    2,400

    Re: Leaf Shutter High Speed

    “ Thanks, but is that actually a slow motion video at the fastest shutter speed, or is it being manually opened and closed in real-time?”

    Opened and closed manually in real time with the preview...
  27. Replies
    33
    Views
    2,400

    Re: Leaf Shutter High Speed

    Here’s an Alphax 5 shutter opening and closing nice and slow: https://alphaxbetax.files.wordpress.com/2019/01/shutter-blades-demo.mov
  28. Re: Lens mounting flanges - measurements and other info

    I think it’s worth including shutter flanges since, in Wollensak’s case at least, there is considerable interchangeability between lens barrel and shutter flanges. For example, if you’re looking for...
  29. Re: Lens mounting flanges - measurements and other info

    This is a worthwhile endeavor. Given the uncertainties in measuring threads, it is helpful to have original dimensions as a reference wherever possible. To that end, I have attached flange thread...
  30. Replies
    0
    Views
    310

    Sigmar Sightings

    I was browsing completed eBay sales and saw that KEH sold three Sigmar portrait lenses in quick succession back in May: the 16, 19, and 22. I am agog! One could wait patiently for a decade...
  31. Re: Were Verito 18 lenses made in different barrel lengths?

    The Verito design was changed in 1920. You can read about the differences in the pages from Wollensak’s Lensology and Shutterisms V. 8 No. 4 below.

    Your longer barrel with the fleur-de-lis is...
  32. Re: Were Verito 18 lenses made in different barrel lengths?

    Can you add some comparative pictures of the two Veritos side-by-side? The older-style Verito (in a brass barrel or black barrel with the fleur-de-lis) appears a bit longer than the later versions,...
  33. Replies
    14
    Views
    1,247

    Re: Turner Reich Triple Conv. date..

    I had number 215036 for a time, also coated, in a very early Alphax #4 shutter that dated to ‘48 or ‘49.

    I think 1947 is a reasonable estimate for your lens.
  34. Replies
    14
    Views
    1,247

    Re: Turner Reich Triple Conv. date..

    I have number 212716 in a Betax #4 shutter marked “11-46” on the back.
  35. Re: What is this shutter on a Vesta Portrait lens?

    I apologize for mis-typing above: a 2.42” male thread will fit a Betax #4.

    Your picture and measurements clear it up, though, your Verito is mounted in a Wollensak #5 lens barrel, in-between the...
  36. Re: What is this shutter on a Vesta Portrait lens?

    Some 8.75” Verito lenses are a factory-direct fit into Betax #4 shutters, while others appear in Betax #5 or Studio shutters. If your Verito lens barrels are 2.42” female thread, then you can...
  37. Re: What is this shutter on a Vesta Portrait lens?

    This is an interesting, nondescript cousin of Wollensak’s Auto/Regno/Victo/Ultro family of shutters, 1914-1919. I haven’t seen it in any catalogs, but maybe a brochure or “Lensology and Shutterisms”...
  38. Re: Wollensak Serial Numbers: Request for Known Dates

    I appreciate you taking time to look, and am interested in any else you find (or don’t find!) in your Betaxes.
  39. Re: Wollensak Serial Numbers: Request for Known Dates

    Thank you for showing that Studio and Optimo shutters have serial numbers. Nevertheless, if these’s a date scratched on the back of those Studio shutters, I’d be interested to know it.

    Let me...
  40. Re: Wollensak Serial Numbers: Request for Known Dates

    For a sanity check on shutter production vs. service date, I looked at the Betax’s two less-popular sister shutters that I have on hand. The Gammax is marked 5-22 on the back, and the Deltax is...
Results 1 to 40 of 484
Page 1 of 13 1 2 3 4