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Which Lenses work well with the FX9’s Autofocus?

Below is a list of lenses that have been tested with the FX9’s advanced autofocus system. Generally any Sony E-mount lens will work just fine. The Sony G series lenses are good and the G Master series tend to be even better. 
For third party lenses and adapters the situation is much less clear, so I have decided to list the lenses I have tested and invite others to contribute to this list via the comments area. The list is not exhaustive at this time but I will try to keep adding to it as I am able to try more lenses and and different adapter combinations.

Inclusion of a lens on this list is not a guarantee that it will or will not work, it is simply an indication of how it worked for me or anyone else that adds information about their own experiences. I welcome updates and any further information from any lens or adapter manufacturer.

If there is a lens you have tested on an FX9 please let me know via the comments how it worked so it can be added to the list.

KNOWN TO WORK WELL:

Sony E (super 35mm) FE (full frame) lenses, G and G-Master including Zeiss ZA series. G and G Master  tend to have the best AF performance.

Tamron 28-75 f2.8 Di III RXD E-mount.

KNOWN TO NOT PERFORM WELL:

Sigma 20mm f1.4 ART native E-mount (very slow AF, hunting, contrast only?).

Sigma 85mm f1.4 ART native E-mount (very slow AF, a lot of hunting).

Sigma 20mm f1.4 ART Canon EF mount on metabones, comlite or viltrox adapters. Very slow AF, not really useable (MC11 not tested yet).


Which Lenses work well with the FX9’s Autofocus? was first posted on December 1, 2019 at 6:14 pm.
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Thinking about new lenses for the FX9?

DSC_0421-2-1024x576 Thinking about new lenses for the FX9?
Sony 28-135mm f4 zoom on the PXW-FX9

If you are starting to think about lenses to take advantage of the FX9’s amazing autofocus capabilities then you should know that I have tested quite a few different lenses on the FX9 now. I have yet to find a Sony lens where the AF hasn’t worked really well. Even the low cost Sony 50mm f1.8 and 28mm f2 lenses worked very well. Infact I actually quite like both of these lenses and they represent great value for the money.

But what I have found is that non Sony lenses have not worked well. I have been testing a range of lenses on various pre-production cameras. Maybe this situation will improve through firmware updates, I would hope so, but I honestly don’t know. The E-mount Sigma 18-35 and 20mm art lenses I tried were not at all satisfactory. The AF worked, but in what appears to be a contrast only mode. The autofocus was much slower and hunted compared to the fast, hunt free AF with the Sony lenses. You would not want to use this which is a great shame as these lenses are optically very nice.

It’s the same story when using Canon EF lenses via both Metabones and Viltrox adapters (I have not tested the Sigma MC11). Phase AF does not appear to work, only contrast and it’s slow.

So if you are thinking about buying lenses for the FX9 the only lenses I can recommend right now are Sony lenses. Don’t (at this stage at least) buy other brand E-mount lenses or expect lenses to be used via adapters unless you can find a way to test them on an FX9 first.


Thinking about new lenses for the FX9? was first posted on October 2, 2019 at 8:18 am.
©2018 “XDCAM-USER.COM“. Use of this feed is for personal non-commercial use only. If you are not reading this article in your feed reader, then the site is guilty of copyright infringement. Please contact me at contact@xdcam-user.com