I'm still getting questions about mounting the new Carry Speed VF-4 on a GH3. I can tell you that it's a very tight fit on a GH3, and it hangs down just a hair below the LCD. See video below.
In the next video below, I'm using the VF-4 extension bracket to show how it can mount on a GH3 with a battery grip attached. One problem with the GH3 grip is that it will relocate the tripod mount off center (to the right), but the VF-4 may be one of the only LCD View Finder products that has enough adjustment to work.
Here's an image Dennis shared with me where he mounts the VF-4 Quick Release plate under the P&C GearBox first which works as a small spacer to fit with the GH2 camera body [Thanks Dennis].
[Reminder] Expires this Wednesday June 12, 2013, here's a link to grab a $50 OFF coupon code good for the VF-4 or VF-4 bundle. More information about the new Carry Speed VF-4 LCD Video View finder can be found at CarrySpeed.com (here)
A few enhancements include compatibility with LCD Screens up to 3.2", repositioned side brackets to allow better access to buttons and dials, angled sunhood for access to touch screen LCDs, and the new VF-4 is slightly lighter in weight but stronger in design. An optional extension bracket is available to fit the VF-4 on taller cameras or camera with battery grip attachments.
More information about the new Carry Speed VF-4 LCD Video View finder can be found at CarrySpeed.com (here)