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  1. #11
    reellis67's Avatar
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    Greg,

    I extrapolated the way these numbers were calculated (using the bellows extension formula) and found that by adding rings you need to add *more* compensation than you would get by just adding the individual factors together (due to squaring in the formula). I updated that web page with the results, but it should be noted that I am *assuming* this is the correct way to calculate these figures.

    - Randy

  2. #12

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    Thanks, it at least gives me a ballpark to start in. I guess I could just use the meter finders, but I truly like to use the waist level finder for most of what I shoot. And I can fine tune this with my digital back when I get to some testing. If I ever get to where I'm doing a lot of macro work, I'll probably buy the bellows extension and reversing rings (etc.).

  3. #13
    reellis67's Avatar
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    Hope you've got lots of disposable cash for that bellows. The last one I saw went for almost $500 US, without the dual cable release...

    - Randy

  4. #14

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    Yeah, I saw that too. Maybe at that point I'll just build my own.

  5. #15
    Mike Té's Avatar
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    There is an instruction booklet

    Hi, Greg.

    I have an instruction manual for my extension tubes. You can buy it from Craig Camera, $15:

    http://www.craigcamera.com/ib_m.htm

    Item no. #MAM-182

    Cheers.
    Michael Robert Taylor
    Ottawa

    I wish I'D said that.... Bartlett

    http://www.apug.org/gallery1/browsei...imageuser=7358

  6. #16
    altair's Avatar
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    Any scanned copy of the M645 extension tube online? I'm having trouble attaching them correctly to my M645 Super body & lenses..that rotating ring & the need to align it with the aperture coupler pin is really driving me nuts! I screwed it up once & now my aperture coupler pin is kinda bent. Helpppp anyone?

  7. #17
    MattKing's Avatar
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    Quote Originally Posted by altair View Post
    Any scanned copy of the M645 extension tube online? I'm having trouble attaching them correctly to my M645 Super body & lenses..that rotating ring & the need to align it with the aperture coupler pin is really driving me nuts! I screwed it up once & now my aperture coupler pin is kinda bent. Helpppp anyone?
    Mike Butkus' site has one - I'd suggest sending him the requested donation.

    http://www.cameramanuals.org/mamiya_...sion_rings.pdf
    Matt

    “Photography is a complex and fluid medium, and its many factors are not applied in simple sequence. Rather, the process may be likened to the art of the juggler in keeping many balls in the air at one time!”

    Ansel Adams, from the introduction to The Negative - The New Ansel Adams Photography Series / Book 2

  8. #18
    altair's Avatar
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    MattKing: Thanks Matt. I've donated to Mr Butkus a couple of times in the past, and will do so again now. Thanks again.

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