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Adapting Arri Bayonet to PL on a fixed focus lens


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#1 Mikael Gustafson

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Posted 21 January 2014 - 01:39 PM

I recently acquired an Angenieux 5.9mm with an Arri bayonet mount. I would like to adapt it to PL but want to know how important it is to get the flange focal distance exact with a fixed focus lens. In other words, should I pay someone to have it professionally mounted and collimated or will a $100 screw on PL mount from ebay do fine with this sort of lens?


Edited by Mikael Gustafson, 21 January 2014 - 01:41 PM.

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#2 Will Montgomery

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Posted 21 January 2014 - 02:40 PM

Chances are it will not cover the Super 16 frame, you know that right?

 

There are many different quality levels of those adapters but in general they should be able to be applied by you. However you should have a pro check it next time you rent gear or drop by a rental house...probably wouldn't charge for that or maybe a six pack of beer. 


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#3 Mikael Gustafson

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Posted 21 January 2014 - 02:57 PM

Chances are it will not cover the Super 16 frame, you know that right?

 

Yea I know. This particular lens will be used on a black magic pocket which has a sensor size similar to super 16. It vignettes ever so slightly but not too bad. I suppose I could look into a bayonet to mft adapter but I love the robustness of the PL mount. 

 

I think I'll probably grab a cheap adapter off ebay and take my chances. Good advice on having a rental shop check it out. Thanks!


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#4 Zac Fettig

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Posted 21 January 2014 - 03:29 PM

A cheap bayo to m4/3 adapter from fotodiox will be a lot less (~$40, I think). Give it a shot first. The Bayo was a good mount, it just wasn't well suited for long barreled zooms.


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#5 Mikael Gustafson

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Posted 21 January 2014 - 03:49 PM

Zac, could you link me to the fotodiox bayo>mft adapter? I couldn't seem to find it. I've only been able to find these two:

 

http://www.ebay.com/...-E/121224986192

 

http://www.ebay.com/...E-/321028217281

 

which are both more expensive than the PL adapter.


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#6 Zac Fettig

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Posted 22 January 2014 - 07:42 AM

My bad, it's just Arri standard. In my head, they get lumped together, since they usually go on the same camera.

 

http://www.fotodioxp...h2-gh3-g10.html


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#7 Jean-Louis Seguin

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Posted 22 January 2014 - 09:15 AM

The FFD is very critical on a lens of such short focal length.

Avoid slip-on adapters held to lens by only a few setscrews; this system is not accurate enough.

A proper adapter should have the same twist and lock feature as a camera's lens mount.

You will probably still need to have this combination collimated but at least the adjustment will hold firm.

 

Jean-Louis


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#8 Tim Carroll

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Posted 27 January 2014 - 10:32 AM

I'm in agreement with Jean-Louis, the shorter the focal length of the lens, the more critical the FFD.  I would have someone with the proper equipment (collimator) set the lens up for PL mount, then you should be good to go.


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