working distance Bronica SQ-Ai

Discussion in 'Medium Format Cameras and Accessories' started by romunas, Oct 25, 2010.

  1. romunas

    romunas Member

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    Does anybody knows flange focal distance of Bronica SQ-Ai? I need to know it for producing monocle for my one.
     
    Last edited by a moderator: Oct 25, 2010
  2. Jon Shiu

    Jon Shiu Subscriber

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    I am not sure what you mean, but there is a mark on the side near where the dark slide goes in. It looks like a 0 with a line through it. I believe it marks the focal plane.

    Jon
     
  3. romunas

    romunas Member

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    Thank you for answering. But i asked something different. Sorry for my English i'm not very familiar with English
     
  4. Bob-D659

    Bob-D659 Member

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  5. Jon Shiu

    Jon Shiu Subscriber

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    Not sure why you couldn't measure it yourself with the info I provided?

    Jon

    ps not sure what is meant by a monocle?
     
  6. Keith H

    Keith H Member

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    Good question Jon, and one I was about to ask.
     
  7. MattKing

    MattKing Subscriber

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    Could it be a reference to an eyepiece correction lens - a "diopter"?

    This would make sense if by "working distance" romunas meant "effective viewing distance".
     
  8. DWThomas

    DWThomas Subscriber

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    Hmm - on the SQ series, the chrome ring the lens seats against measures approximately 85 mm from the film plane. With the slight extension of my body cap pinhole adapter, I get a pinhole to film distance of about 90 mm.

    But I suspect this may not be the answer to the intended question -- maybe the question is a reference to "eye relief"? Unfortunately, I'm not aware of the answer to that. There are a half dozen different viewfinders, so it might help to know which one, if that has anything to do with the question.

    Maybe a quick sketch could bridge the language gap?
     
  9. werra

    werra Subscriber

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  10. romunas

    romunas Member

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  11. romunas

    romunas Member

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  12. romunas

    romunas Member

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    Thank you for answering :smile: You are absolutely right. I asked about distance from chrome ring the lens seats to film plane. Thank you :smile:
     
  13. RobertV

    RobertV Restricted Access

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    добро пожаловать к apug. Я больше или более менее соединен к вашей стране.

    Best regards,

    Robert
     
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  15. romunas

    romunas Member

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    Wow! Thank you :smile: Not sure can i answer to you in Russian or not :smile:
     
  16. RobertV

    RobertV Restricted Access

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    мой русский очень неудача, гораздо плохее после этого ваша английская язык. Я как раз назад от Одесса. Украин страна больших разниц.

    [​IMG]

    Best regards,

    Robert
     
  17. romunas

    romunas Member

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    :smile: Yes. Our country is a little non ordinary :smile: Where were you in Ukraine except Odessa?
     
  18. RobertV

    RobertV Restricted Access

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    In the past I have been on the border of Slovakia and Ukraine. From last years I have been in Nikolaev and Odessa.
    Your country is going slowly in the right direction but there is a tremendous difference in rich and poor people.
    I am even not used of all the poor street dogs and cats who are everywhere in the cities.

    Sometimes you're going back 50 years in time and on the other hand some cities are very modern and everything is there. The infra structure is a disaster, especially in Winter or short after the Winter.

    Just for inform people how your country is suffering in transport:
    http://www.youtube.com/watch?v=ITbjE60_0JU&feature=related

    Greetings from Holland to Ukraine.
     
  19. romunas

    romunas Member

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    Thanks for greetings :smile: It's really pleasant :smile:
    I'm not sure in moving in right direction looking to our new president Yanukovich. Infrastructure and roads are really terrible i'm agree with you :sad:
    But our nature is very beautiful. If you will have possibilities ride to Carpathian mountains or Crimea. Western cities are beautiful and looks quite European: Lviv, Ivano-Frankovsk, Uzhgorod, Chernivci
     
  20. RobertV

    RobertV Restricted Access

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    Ideed, a but more to the Federation of Russia now. But also this will be changed in time. It's not bad to have good relation with the other neighborhood too.

    Yes, it is. I can only advise people to visit the Ukraine. It's a real European country with European citizens. It's a pitty a lot of money is floating away in the pockets of people who really do not need it apart from corruption and tricky business.

    I can only hope this will improve in the near future because whole Europe would be better on the long termin when Ukraine will be a member of the European Union.
     
  21. romunas

    romunas Member

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    Thank you for such pleasant comments about Ukraine :smile: Hope one day we will become much more civilized :smile:
     
  22. RobertV

    RobertV Restricted Access

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    About history, art and education I think your country is one of the best in Europe.

    The problem is that politicians try to take all power in the country for their own benefit.
    A country bigger then France and about 55 million inhabitants could be an important vote within the EU.

    Talking about the meaning of the country: The Netherlands means Low Land while Ukraine means Border Land. You have one of the best soil/ground in Europe and could be again an important factor in agriculture.

    It's also a pity a lot of companies went out of business after 1990. Also your own photoindustry Svema disappeared years ago.

    Fotohuis is sending Europe wide which includes the Ukraine. I am just busy to arrange a Leitz 1C to Kiev.

    I whish you all the best,

    Robert / Роберт :smile:
     
  23. DWThomas

    DWThomas Subscriber

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    You are welcome, I am relieved to see my measurement agrees with that Japanese chart! If you are going to build your own attachment, the use of a body cap to mount the lens might be useful. The pinhole adapter I made can be seen here, it would probably be possible to use some plastic pipe fittings to create a crude lens mount. You do have to avoid anything that extends inside the camera body very far, as it could hit the mirror.
     
  24. Jon Shiu

    Jon Shiu Subscriber

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    Nice pictures. How do you shoot this lens without a lens shutter?

    Jon
     
    Last edited by a moderator: Oct 26, 2010
  25. romunas

    romunas Member

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  26. romunas

    romunas Member

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    WOOOW!!!! That's really GREAT article! Thank you for it!