AF Tests with the GH4 with Firmware 2.0 from Eric Cote on Vimeo.

Eric Cote posted some early GH4 2.0 firmware testing results at Mirrorlessjourney.com. The video on top for example shows Improved performance of 1-area AF in video recording:

I ran some tests with the Panasonic 20mm f/1.7 open at f/2 to stress it. Well, I can’t say how it was before but I can say it is still far from perfect or even usable. It still hunts a lot and have some trouble following even when moving slowly. In 4K, it seems to hunt even more back and forth. I will still use manual focus with the focus peaking.

Thanks Eric!

UPDATE: Seb farges tested the 4K photo mode:

GH4 new photo 4K mode firmware in anamorphic 1.75x quick test from Seb Farges on Vimeo.

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GH4 North American store links:
GH4 camera at Amazon, Adorama, BHphoto, Ritz Camera and Panasonic. Price: $1,698. In Canada at Vistek.
GH4 camera with interface unit at Adorama and BHphoto. Price: $3,298
Interface unit only at Amazon, Adorama, BHphoto and Panasonic. Price: $1,998

GH4 Europen store links:
Germany: Wexcameras, Marcotec-shop.de.
UK at Wexphotographic, CameraWorld, UKdigital, CVP, TipTop.
Holland at Fotohanskeuzekamp.
Belgium at Fotokonijnenberg.
Norway at Fotovideo.
Sweden at Cyberphoto, Skandinavianphoto.
Finland at Telefoto, Topshot, Verkkoauppa.
France at Photocineshop.
Spain: Fotoboom.

Asian store links:
Digitalrev and Digidirect Australia.

4K cards
Kingston 16-32-64 GB SDHC UHS-I Speed Class 3 at Amazon (Click here), Adorama (Click here) and BHphoto (Click here).
Sandisk 16-32-64 GB Extreme PRO SDXC UHS-II Memory Card at Amazon (Click here), Adorama (Click here) and BHphoto (Click here).
Transcend 64-128 GB High Speed 10 UHS-3 at Amazon (Click here) and BHphoto (Click here).
Panasonic 16-32-64 GB SDHC-UHS-I U3 Card (90MB/s) at Adorama (Click here) and BHphoto (Click here).

Note: Preorder the 40-150mm f/2.8 PRO lens at Amazon, Adorama, Bhphoto, GetOlympus, Wex UK and Technikdirekt.

If you want to see what kind of pictures you can take with the new Olympus 40-150mm f/2.8 PRO zoom than check the images posted by Frank Rückert on Pen3.de. Really great images! Germans can now preorder the lens too at Technikdirekt and Amazon.

Olympus preorders:
Silver E-M1 body at Amazon, Adorama, Bhphoto, GetOlympus. In Europe at Wex UK.
40-150mm f/2.8 PRO lens at Amazon, Adorama, Bhphoto, GetOlympus. In Europe at Wex UK, Technikdirekt and Amazon.
LH-76 lens hood at Adorama, Bhphoto, GetOlympus.
MC-14 1.4x teleconverter at Amazon, Adorama, Bhphoto, GetOlympus.
PRF-ZD62 Z protection filter at Adorama, Bhphoto, GetOlympus.
PRF-ZD72 Z protection filter at Adorama, Bhphoto, GetOlympus.
General links to all new Olympus stuff at Adorama.
ALL new stuff announced at Photokina at Amazon.

Panasonic preorders:
LX100 at Amazon, Adorama, BHphoto. Europe at WexUK.
GM5 at Amazon, Adorama, BHphoto. Europe at WexUK.
GM5 in red at Adorama.
35-100mm at Amazon, Adorama, BHphoto.