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Does anyone have experience with swapping the PL mount on an Alexa Classic with a Canon mount?


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#1 Spencer Katz

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Posted 05 June 2018 - 10:56 PM

Found a few links to some gear that supposedly allows you to swap out the PL mount on an Alexa Classic to a Canon mount and just wondering if anyone has experience with something like this and if it would work?

 

Here's some links, thanks!

 

https://www.abelcine...i-ef-lens-mount

 

https://www.bhphotov...wQAvD_BwE&smp=n

 

http://www.leitax.co...lexa/index.html

 

https://www.pstechni...r-alexa/a-1468/

 

 


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#2 Stuart Brereton

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Posted 05 June 2018 - 11:11 PM

Those are all reputable vendors. I don't see why you would have any problems as long as you install the mount correctly.


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#3 Dom Jaeger

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Posted 06 June 2018 - 04:16 PM

The first two mounts are only for Alexa Mini and Amira.

The last two should work on an Alexa Classic, though bear in mind they are purely mechanical mounts so electronic aperture lenses will not work. You will also very likely need to shim the mount if you want the focus scale to read correctly on an EF cine lens or want a parfocal zoom to hold focus. The P&S Technik EF mount seems to supply shims, not sure about Leitax.

Under the PL mount are thin metal shims that need to be carefully refitted when you convert the camera back to PL.
If the camera has LDS contacts, removing and refitting the PL mount is somewhat more complicated, but not out of the capabilities of a technical person.
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