Pl to ef

[david evans]

Guys, I know this has been discussed, but with the release of the Ursa Mini Pro and the whole interchangeable mount thing, maybe there is something new. I wanted to use some pl mount lenses on my EF mount Ursa Mini 4.6k. Any idea which adaptor would be the best and most compatible? Some of the PL lenses I wanted to use were the cooke s4 and the angenieux optimos.

Thanks

[Denny Smith]

David, There are some EF/PL adapters, HotRod Cameras or 16x9 made a nice one, but they only accepted a few older PL vintage zooms. The Coomes do not fit, I believe, as the rear space behind the PL lock ring is reduced with these adapters. Also adding a PL mount for a heavy lens like the Optimo on an already weak EF Mount is not a good idea, unless you add some very good lens support.
Cheers

[david evans]

Thanks Denny. Still, there are Cookes such as the 18-100 that shouldn't be a problem. I guess it has to be checked case by case. Any idea which adaptor should work the best?

Thanks

[david evans]

I was looking on ebay and found this:

https://www.ebay.co.uk/itm/Angenieux...sAAOSwKE9Zv~6D

Would this work ok? I just want something that gives me a chance to use certain classic cinema lenses if needed on my Ursa Mini...

Thanks

EDIT:

Here's the list of compatible lenses that the seller (ciecio 7) provides:

SLR Magic ANAMORPHOT-CINE 35/50/70mm
APOGEE LENS SET
Angenieux OPTIMO ULTRA 12x
Angenieux OPTIMO Anamorphic 30-72 A2S
Angenieux OPTIMO Anamorphic 44-44- A2S
Angenieux OPTIMO Anamorphic 56-152 A2S
Allstar 18-35mm T1.8
Allstar 80-200mm T3
Allstar 50mm T1.5
Allstar 135mm T1.9
Angenieux Optimo 19.5-94mm
Angenieux Optimo 28-340mm
Angenieux Optimo 45-120mm
Ruby 14-24mm T2.8
Angenieux Optimo 15-40 mm T 2.6
Angenieux Optimo 17-80 mm T 2.2
Angenieux Optimo 28-70 mm
Angenieux Optimo 24-290 mm
Angenieux 24-290 mm T 2.8
Angenieux 17-102 mm T 2.9
Angenieux 7-81 mm T 2.4 HR
Angenieux 20-120 mm
Canon 300 mm T 2.8
Canon 400 mm T 2.8
Canon 800 mm T 5.6
Canon Century 200 mm T 2
Cooke 18-100 mm T 3
Nikkor 200 mm T 2
Nikkor 300 mm T 2
Nikkor 800 mm T 5.6
Nikkor Micro 200 mm T 4
Canon Century Optics S2000 150-600mm

[Denny Smith]

David, while it might physically mount, I would not do it. First of all, the adapter is not shimable, nor is the Ursa Mini 4K/4.6 EF Mount.
So if you used one of the Angie zooms, it may not be parfocal, as the back focus can not be shimmed to the correct FFD tollerence. We are talking about an error of 1/1000 of an inch is enough to do this. The amount on BM cameras is not quite 44mm (EF standard), and this adsoter can have a sizable error in its FFD, he says .002, but that is enough to kill a parfocal Zoom.

Personally, I would not waste my money on a non shimable adapter. I had a non shimable MFT/PL adapter, and while it did work with the Pocket camera with my Angie zoom, there was enough of a difference (0.002), it didn’t work and my Zoom was no longer parfocal.

Also, an adapter like this for large zooms, needs to be supported directly my a rail system or bold to the ca era cage. Which most of these adapters do not.
Cheers