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 The recently released GH4  looks the same and mostly works the same as the GH3, Panasonic's previous, and still available, top tier pro level, hybrid stills/video camera.So, is it worth the...

GH4 with 100-300mm , hand held.  f8, 1/1600 sec. It was a hazy warm day, not really good for long distance photography however the 100-300mm lens has handled the conditions well. The build...

Mechanical shutter 1/80secE-Shutter 1/80secAll Micro Four thirds cameras to date have a mechanical shutter.  All of those which I have tested to date can produce unsharpness with or without doubl...

GH4, 35-100mm f2.8 lens In the previous post  I commented that GH4 single shot AF  is not much better than  the GH3 largely because the GH3 is already excellent and difficult to im...

GH4, 100-300mm lens The GH4 is reallytwo cameras in one body, a high performance stills camera and a highly capable 4K video camera. This post is about  autofocus for still photos. There is ...

GH4 with 100-300mm lens The Panasonic GH4   has a very sophisticated and effective focus system. This post is about manual focus.  The user who has never before encountered a rec...

GH4 with 100-300mm lens From 1989 to 2009  my main cameras were Canon SLRs then DSLRs.  In many respects these were decent cameras with good image quality and performance. But every o...

GH4, 100-300mm lens, hand held Problems reported with the GH3   The feature of the GH3 which has drawn most criticism is  the EVF.  This is  prone to a "smearing&q...

GH4, Panasonic 100-300mm lens, hand held The GH4  is the latest iteration of Panasonic's top of the line GH series combining a high level of stills and video capability in one compact unit...