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Thread: Does 90mm + Pacemaker Speed Graphic = Drop Bed ??

  1. #1

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    Does 90mm + Pacemaker Speed Graphic = Drop Bed ??

    Hi,
    When using a 90mm lens on a 4x5 Pacemaker Speed Graphic do you have to drop the bed to keep the front of the bed out of the shot?
    It only has to clear the 4 inch dimension since you turn the whole camera for a vertical but it will be very helpful if someone knows the answer here.
    thanks!
    Robert

  2. #2

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    Re: Does 90mm + Pacemaker Speed Graphic = Drop Bed ??

    Hmm. I have 2x3 Graphics. With them the rule is, if it makes infinity inside the box then drop the bed.

    That said, the bed doesn't have to be dropped for an 80, does for a 65. And there's a hint, since 65 mm on 2x3 is roughly equivalent to 90 mm on 4x5.

  3. #3

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    Re: Does 90mm + Pacemaker Speed Graphic = Drop Bed ??

    I don't have a Pacemaker, but for the 4x5 Super Graphic the answer is "yes".

  4. #4
    Jim Jones's Avatar
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    Re: Does 90mm + Pacemaker Speed Graphic = Drop Bed ??

    After checking two 90mm lenses on a Speed Graphic Pacemaker, a 90mm f/8 Ilex Wide Angle Acugon does not show the front of the bed, while the more compact 90mm Optar 90mm f/6.8 shows a little bit. Neither show any bed on a Crown Graphic. I didn't remount either lens on Graphic boards for this test, but believe the information is correct.

  5. #5
    multi format
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    Re: Does 90mm + Pacemaker Speed Graphic = Drop Bed ??

    i have a pacemaker, and whether i need to or not, i drop the bed ... the lens is in the box anyhow
    and i seem to remember getting what i thought were rails when i first used a 90 on it, so i just do it ...

  6. #6

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    Re: Does 90mm + Pacemaker Speed Graphic = Drop Bed ??

    depends on the 90....

  7. #7

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    Re: Does 90mm + Pacemaker Speed Graphic = Drop Bed ??

    The graflex manual recommends drop bed for 90mm, no drop with a 100mm. With my optar 90mm, the bed is dropped. This is actually nice: since the lens is in the body, I can reverse the front standard to get forward tilt without worries (its a TRF Pacemaker, not sure if this works with Kalarts).
    Peter Y.

  8. #8
    IanG's Avatar
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    Re: Does 90mm + Pacemaker Speed Graphic = Drop Bed ??

    I made a silly mistake 18 months ago with my 90mm f6.8 Angulon an it does includ the focus bed if it's not dropped

    Ian

  9. #9
    jp's Avatar
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    Re: Does 90mm + Pacemaker Speed Graphic = Drop Bed ??

    My Nikkor 90/4.5sw doesn't need bed drop, but that's because it sticks out a bunch.

  10. #10

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    Re: Does 90mm + Pacemaker Speed Graphic = Drop Bed ??

    Thank you for all the good help!
    Rbt

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