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  1. #21

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    Quote Originally Posted by TheFlyingCamera View Post
    Nobody said "legendary" status had to be rational or logical. The mythology benefits those who know better, as it keeps quite excellent lenses off the radar. What is known about the Dagors though is that they do have very substantial image circles for their focal length - not quite Hypergon or Protar, but nonetheless, impressive.
    Based on my experience enlarging negatives made by six different Dagors of different focal lengths from 6 to 14 inches, Dagors cover about 65 to 70 degrees, just like your average Plasmat. That huge coverage is one of the legends. "Coverage" and "Illumination" are two separate concepts.

  2. #22

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    Quote Originally Posted by E. von Hoegh View Post
    Based on my experience enlarging negatives made by six different Dagors of different focal lengths from 6 to 14 inches, Dagors cover about 65 to 70 degrees, just like your average Plasmat. That huge coverage is one of the legends. "Coverage" and "Illumination" are two separate concepts.
    +1

    My friend Eric Beltrando (visit his site www.dioptrique.info to see the results of his calculations) insists that Boyer Beryls (Dagor clones, and very like Dagors; Beryls, Beryl Ss, and Emeraudes all have the same prescription) cover 70 degrees and can be counted on for only 55 degrees in stringent applications, e.g., photoengraving.

    People tend to see what they want to see, whether it is there or not.

    Other makers' dagor clones are much the same. Between ~ 1912 and ~ 1950 Berthiot's coverage claims for their f/6.8 Perigraphe Ser. VIb shrank remarkably, from 95 degrees to 65 degrees. Same lens, different films and criteria of acceptable image quality. Coverage is a sometime thing but fantasy goes on forever.
    Last edited by Dan Fromm; 04-30-2013 at 04:28 PM. Click to view previous post history.

  3. #23
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    Legendary?? What makes a lens legendary. If I need to sell it on Ebay . . . it's legendary. I don't really give a crap about legendary lenses. I want to make some legendary pictures.
    He is no fool who gives what he cannot keep..to gain that which he cannot lose. Jim Elliot, 1949

    http://tonopahpictures.0catch.com

  4. #24

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    Jimbo, legendary lenses command legendary money. I thought you could spell Pinkham & Smith.

  5. #25
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    Quote Originally Posted by Dan Fromm View Post
    Jimbo, legendary lenses command legendary money. I thought you could spell Pinkham & Smith.
    My point is obvious. Legendary lenses, and there are some, don't necessarily make legendary pictures. I'm living proof.
    He is no fool who gives what he cannot keep..to gain that which he cannot lose. Jim Elliot, 1949

    http://tonopahpictures.0catch.com

  6. #26
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    Quote Originally Posted by Sirius Glass View Post
    While I have interest in the lenses that you sell, I find your prices are legendary!
    You cannot be Sirius! My stuff is cheap.
    He is no fool who gives what he cannot keep..to gain that which he cannot lose. Jim Elliot, 1949

    http://tonopahpictures.0catch.com

  7. #27

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    Quote Originally Posted by jimgalli View Post
    You cannot be Sirius! My stuff is cheap.
    Yeah, you, Eddie and Dagor77. Everything you guys sell is unique and legendary!

    Just jerking your chain, Jim. I have sold some "rare" lenses myself.

  8. #28
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    I don't know what is 'legendary,' but in terms of 'unique' the Hypergon with the spinning center filter is at the top of my list.

  9. #29

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    Quote Originally Posted by Dan Fromm View Post
    +1

    My friend Eric Beltrando (visit his site www.dioptrique.info to see the results of his calculations) insists that Boyer Beryls (Dagor clones, and very like Dagors; Beryls, Beryl Ss, and Emeraudes all have the same prescription) cover 70 degrees and can be counted on for only 55 degrees in stringent applications, e.g., photoengraving.

    People tend to see what they want to see, whether it is there or not.

    Other makers' dagor clones are much the same. Between ~ 1912 and ~ 1950 Berthiot's coverage claims for their f/6.8 Perigraphe Ser. VIb shrank remarkably, from 95 degrees to 65 degrees. Same lens, different films and criteria of acceptable image quality. Coverage is a sometime thing but fantasy goes on forever.
    Interesting. That's almost exactly what Schneider-Kreuznach specified as coverage for the last batch of Kern 14" Dagors, the multicoated ones.

    An old copy of "Photographic Optics (Cox)" gives the coverage as 70 degrees.

    I had at one time an S-K 300mm Doppel Anastigmat, which is a Dagor clone. It's every bit a Dagor, and comparing mine with a CPG Berlin 30cm Dagor of the same vintage, the Schneider was a bit sharper from f:6.8 to f:11 - after that I could see no difference.

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