Page 1 of 2 12 LastLast
Results 1 to 10 of 14

Thread: 6" Metrogons for sale from Surplus Shed

  1. #1

    Join Date
    Jul 2006
    Location
    Valley of the Sun, AZ
    Posts
    682

    6" Metrogons for sale from Surplus Shed

    Just a heads up for those who might be interested, Surplus Shed (http://www.surplusshed.com/) is selling new 6" Metrogon formula lenses for $75. Maker unknown, but they are coated and include a 117mm center filter. I had a Cold War vintage Metrogon with center filter, and this one looks scads nicer. SKU # is L10084.

    Another item of possible interest, they have a military manual (SKU: M2673, MILITARY OPERATION AND MAINTENANCE OF OPTICAL COATING EQUIPMENT MANUAL) that may contain sufficient info to permit one to coat their own lenses (assuming you have the vacuum source and CVD equipment, which may be possible if you work in the semiconductor industry etc).

    I have no relation to the seller etc.
    They are ill discoverers that think there is no land, when they can see nothing but sea.
    -Francis Bacon

  2. #2

    Join Date
    Dec 2006
    Posts
    953

    Re: 6" Metrogons for sale from Surplus Shed

    What are the particular advantages of Metrogons?

  3. #3
    Whatever David A. Goldfarb's Avatar
    Join Date
    Mar 2000
    Location
    Honolulu, Hawai'i
    Posts
    4,659

    Re: 6" Metrogons for sale from Surplus Shed

    They're superwide aerial mapping lenses with big coverage. A 6" might cover 8x10".

  4. #4

    Join Date
    Dec 2001
    Location
    NJ
    Posts
    7,841

    Re: 6" Metrogons for sale from Surplus Shed

    David, 6" Metrogons are made to cover 9"x9", should cover 8x10 with minimal movements. As mapping lenses, they have low distortion.

  5. #5
    Mark Sawyer's Avatar
    Join Date
    Jul 2004
    Location
    Stuck inside of Tucson with the Pixie Hollow Blues again...
    Posts
    5,842

    Re: 6" Metrogons for sale from Surplus Shed

    Some Metrogons (like mine) are quite large, though this one looks smaller. All are very difficult to get into a working shutter, and as the glass protrudes front and rear, they're prone to damage. A 159mm Wollensack is a more practical lens with a bit more coverage.
    "I love my Verito lens, but I always have to sharpen everything in Photoshop..."

  6. #6

    Join Date
    Dec 2001
    Location
    NJ
    Posts
    7,841

    Re: 6" Metrogons for sale from Surplus Shed

    But Mark, they're just the lens for an 8x10 Speed Graphic.

  7. #7
    Mark Sawyer's Avatar
    Join Date
    Jul 2004
    Location
    Stuck inside of Tucson with the Pixie Hollow Blues again...
    Posts
    5,842

    Re: 6" Metrogons for sale from Surplus Shed

    Quote Originally Posted by Dan Fromm View Post
    But Mark, they're just the lens for an 8x10 Speed Graphic.
    Ah, but that there were such a beast...
    "I love my Verito lens, but I always have to sharpen everything in Photoshop..."

  8. #8
    Murray's Avatar
    Join Date
    Jul 2004
    Location
    Holland, MI, US
    Posts
    108

    Re: 6" Metrogons for sale from Surplus Shed

    I get the impression from the Surplus Shed listing that this variety of Metrogon has a fixed aperture. The description is a bit ambiguous in discussing changeable aperture Metrogons, but not stating they are included...might be wide open (guess f/6.3).

    I haven't run into a lot of people who have actually used them, but have heard that 8x10 coverage is 'barely', or 'no movements'. I haven't heard anywhere else that Metrogon coverage increases when stopping down, or it only increases to the marginal coverage point, and is worse (?) at wider apertures. I doubt this, as aerial usage on 9x9 was common wide open. Unlike other lenses, these were supposed to perform to spec open, and not require stopping down to meet the format's requirements.

    I also wonder if they have no name, then are they marked 'Metrogon' or just 'look like' Metrogons. The Zeiss Topogon was a very similar, but still different, design, 100-ish degree angle of view vs 90-ish for Metrogon, and slightly worse distortion.

    There was a third patented design, British, also similar but different, the name of which I can't remember.

    I have a B&L 6" Metrogon and an Eastman Kodak 6" lens that has the Topogon patent number on it. I think they both have the same Mil-Standard number (150? - I'm not looking at them), so I took that to mean at some level for some camera they must have been considered interchangeable suppliers. At least these can be easily disassembled and not so easily remounted in shutters (I think SK Grimes referred to one of their Metrogon shutter mount jobs as a 'novelty installation'. I haven't gotten the same impression of convertibility with the Fuji clone and whatever this one is.

    Not like any of them are remarkably practical on most view cameras ... I found that by removing the shutter spring (intended as maintenance), the shutter operates easily (rotary action, a little less than 360 degrees rotation) with two fingers at the shaft coupling. Again, not practical on a view camera (the coupling would be inside the bellows), but at least the monstrosity has a lever for the iris and a shaft coupling for the shutter. I gave up trying to keep the shutter speeds (50-400), as the torque to wind and fire the shutter was normally provided by a motor stronger than one's fingers. The f-stops are also not marked with all the camera linkages missing (if you had the entire camera...K-17 series? - I forget), you'd have marking vs iris lever position info...otherwise another obstacle to practicality.

    None of this stopped me from acquisition...usage is another issue.

  9. #9
    SF Bay Area 94303
    Join Date
    Aug 2005
    Location
    SF Bay Area
    Posts
    433

    Re: 6" Metrogons for sale from Surplus Shed

    I bought the last model they sold for $35 or some such and it was worth less than that.
    I think it was designed as a door port viewing lens or some such ridiculous use. This one looks marginally better. The one I got did not cover 9X9, not even close. Buyer beware.

    K

  10. #10
    4x5 - no beard Patrik Roseen's Avatar
    Join Date
    Sep 2005
    Location
    Stockholm, SWEDEN
    Posts
    533

    Re: 6" Metrogons for sale from Surplus Shed

    I was tempted and ordered this lens and received it today. Now this is really a huge lens.

    The filter size is almost 5.5 inches in diameter (135mm) and the center filter looks really nice. (It is attached to the lens and I have not tried removing it)
    The rear is 2.5 inces and the lens bulb sticks out (protrudes?)

    Measuring the fixed aperture from what I Can see from the outside of the lens it wuld be an f10. (150mm lens with aperture of 15mm)

    The centerfilter probably takes another 2 stops making it as dim as an f22 or so. I will check tomorrow when the daylight is back.

    The strange thing about this lens is that the rear attachment is all white, whereas the front is black. What was this lens really designed for, a copy machine or?

    I wonder what I will do with it?

Similar Threads

  1. 6" Metrogon lens at Surplus Shed
    By Dave Moeller in forum Lenses & Lens Accessories
    Replies: 0
    Last Post: 30-Mar-2005, 18:11

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •