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Small surprise: GH4 seems to focus slower in 4K recording mode (while it’s damn fast at 1080).

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Our friend Frederick compared the GH4 and GH4 AF performance and discovered an interesting drawback of the GH4 in 4K mode:

I have tested the autofocus performance of the GH4 with the GH3 during video recording. This demanding test shows that the GH4 indeed does improve upon the GH3 in 1080p mode. In 4K mode, though, the autofocus is rather poor.
http://m43photo.blogspot.com/2014/05/recent-micro-four-thirds-cameras-have.html
I tested using both the 12-35mm and 35-100mm f/2.8 lenses.

It’s the first time I hear about that “drawback”. Hope other readers will test this too and confirm (or not confirm) the slower af in 4k mode!

GH4 North American preorders, shipping date and price:
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 preorders, shipping date and price:
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 preorders, shipping date and price:
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).

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