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Thread: Question on haze/coating issue & scratches on lens

  1. #1
    Daniel Stone's Avatar
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    Question on haze/coating issue & scratches on lens

    Hey all,

    I just took receipt of a 12" Goodkin Graphinar, looks to be a Japanese-made dagor "clone". Single coated. Despite the listing saying it was scratch and haze-free(with no returns to boot, go figure), it arrived with both. Yay !!!

    So my question is this: will this affect sharpness? I'm shooting 8x10, and have been moving from modern glass back to Artar's and Dagor's. This looked like a good option price-wise vs a 12" kern dagor, with lots of coverage IF I need it according to some references here on LFF and over on APUG.

    Please consult the pictures below. When I look through the lens in normal ambient room light, it doesn't seem all that bad. But when backlit(like in picture #3 below), you can see the coating haze and scratches. I normally use a compendium lens shade when I shoot, so I do my best to minimize direct light from flaring the lens. But will this amount of haze and scratches affect the final contrast and/or sharpness on the film? Should I be looking for another copy of this lens? I like having clear glass, but if this won't be a problem, I might see about getting it shutter mounted(Copal 3 or Compound 3/4).

    thanks

    Dan






  2. #2

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    Re: Question on haze/coating issue & scratches on lens

    Scream misrepresentation and send it back. If you don't want to do that, take a shot with it and see how it does. Then send it back.

  3. #3
    Daniel Stone's Avatar
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    Re: Question on haze/coating issue & scratches on lens

    Hey Dan,

    well I've sent a message to the seller, I didn't "scream", but asked politely . They've stated they're willing to take it back, since they've somewhat admitted that they didn't look to closely, or see the scratches/haze. Too bad, I was really hoping for a nice mint- example to send over to SKG to get mounted. Too bad.

    Any idea on the performance values of this lens vs a 12" modern(ish), like a Kern, Dagor?

    thanks

    -Dan

  4. #4

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    Re: Question on haze/coating issue & scratches on lens

    That's horrible. Send it back.
    One man's Mede is another man's Persian.

  5. #5
    Daniel Stone's Avatar
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    Re: Question on haze/coating issue & scratches on lens

    Thanks guys, he's offered to take it back, so I'm going to get it shipped back today. Too bad, I was looking forward to a new toy(umm... tool) to enjoy

    -Dan

  6. #6

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    Re: Question on haze/coating issue & scratches on lens

    Previously cleaned with a Brillo pad?

  7. #7
    Daniel Stone's Avatar
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    Re: Question on haze/coating issue & scratches on lens

    well seeing that its a process lens, it might have lived a hard life in the same room as the developing chemicals. I've heard about coatings getting eaten/etched/fogged by the chemicals, IDK though...

  8. #8

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    Re: Question on haze/coating issue & scratches on lens

    Quote Originally Posted by DanielStone View Post
    well seeing that its a process lens, it might have lived a hard life in the same room as the developing chemicals. I've heard about coatings getting eaten/etched/fogged by the chemicals, IDK though...
    That lens didn't get scratched like that from developer. 80 grit sandpaper, maybe.
    One man's Mede is another man's Persian.

  9. #9
    Tracy Storer's Avatar
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    Re: Question on haze/coating issue & scratches on lens

    Yeah, I'd call that a significant example of "cleaning marks AKA scratches"
    Tracy Storer
    Mammoth Camera Company tm
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  10. #10

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    Re: Question on haze/coating issue & scratches on lens

    Dan, in the interest of solidarity among Dans, let me remind you that Boyer and Berthiot made dagor clones.

    You might want to keep your eyes open for a 250/6.8 Boyer Beryl (sorry, you can't have mine) or a 225/6.8 Ser. VIb Berthiot Perigraphe. FWIW, I have 135/6.8 Beryl and Perigraphe, think that the Beryl is a hair better; remember that mine are both used lenses and that all the usual caveats about generalizing from a used lens' performance apply.

    You might also acquire a copy of the VM -- Dan Collucci, who posts here as ccharrison sells it -- and look in it for other makes/models of dagor clones. Search for Q9. The VM has led me to a number of sleepers.

    Happy hunting,

    Dan

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