Thread: moving adaptors

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    #11
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    I did some google research and found out that the adapter should be 28,5mm (at 20 degrees celcius I guess).
    I can measure the adapters with 0.1mm tolerance. So that is a new item on my bucket list. But it might be the connectors that aren't made very well.

    Update:
    The expensive metabones is the worst one, a nameless 15 euro adapter fits better. I found out that the thickness of the adapter isn't the problem. The lens can rotate 1/2 degree when attached to the adapter. And the lens can slightly moved off-center with all adapters. It might be the lens (only one Nikkor to test at the moment) but I think it is the mount on the adapters that causes the problem. They all are rock solid on the camera side.
    Last edited by Publimix; 01-10-2019 at 03:04 PM.


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    #12
    Senior Member Wes.'s Avatar
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    I think it's just e mount, dude.
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    #13
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    Quote Originally Posted by Mitch Gross View Post
    If you are putting tape between the flat surface of the adapter and the flat surface of the lens then you are changing the flange focal depth. Not too bad if you eye focua anyway, but these things are supposed to be set within a few microns.
    Of course but this is the realty of still lens mounts that are not designed to take rotational torque.

    For a solid mount PL or FZ (?) are required - here the lens engages with a taper lock.

    In 'cheap world' you tape up and move on.

    To the OP.

    Before I was speed boosting I basically had one $15 adapter on each lens.

    Lenses like my 10-24 which doesnt speed boost has its own adapter.

    For good results with bigger glass like the 50-300 IMO the lens absolutely needs to be on rods or another solution (like the foot I built )
    Last edited by morgan_moore; 01-10-2019 at 11:08 PM.


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    #14
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    Quote Originally Posted by Wes. View Post
    I think it's just e mount, dude.
    No, that is easy to test, with only the adapter mounted on the camera there is no rotation.


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    #15
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    I usually use a Mattebox clamped to the lens and clamped to the rods that makes the whole thing rigid.


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