Testing out broadcast Lens on GH2.
Fujinon A14x9BERM f1.7 9-126mm.
If you would like to attach this type of lens, first make sure you get one with a 2x extender. The "E" in BERM stands for extender. Second make sure its parafocal. I had to look at pictures to see if it has it, usually at the end.

I had a difficult time back focus the GH2 on EX mode with the lens 1x as shown in the video.
When you go 2x on lens your f1.7 becomes f3.4 but increase zoom range.
You can power the zoom with right equipment which is awesome.

Its essential to have a decent tripod and fluid head to handle the weight and tilt and pan. I weighed the lens mounted on the GH2 about 4.5lbs very front heavy.

Fujinon Lens Identifier:
fujifilmusa.com/products/optical_devices/broadcast-hd-sd/hdtv-lenses/lens-id/index.html#sdtv

Setting back focus:
youtu.be/q5c0uVakL98
youtu.be/qIYvYvkblMs

Article on 2/3 lens on different cameras:
dslrnewsshooter.com/2012/01/02/new-mtf-services-lens-adapters-electronic-eos-to-sony-f3fs100panasonic-and-b4-to-eossony-f3fs100/

In-depth article:
streamingmedia.com/Producer/Articles/Editorial/Featured-Articles/Adapting-Servo-Zoom-Lenses-for-Smooth-Zooming-DSLR-Production-Part-1-80668.aspx

Rigging & Power:
streamingmedia.com/Producer/Articles/Editorial/Featured-Articles/Adapting-ENG-Lenses-to-DSLR-Production-Part-2-Power-%26-Rigging-81101.aspx

Various 2/3 mounts:
myworld.ebay.com/funkykoval2001/
myworld.ebay.com/ciecio7/

Sells mounts and cable/power zoom:
myworld.ebay.com/calhounmonster

Combo lens and mount deal:
myworld.ebay.com/plan9outerspace
myworld.ebay.com/summerstimeblue

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