GH4 Secret Appearance of the GH4 at SXSW Tomorrow
- Thread starter Illya Friedman
- Start date
starcentral
Veteran
BHphotoVideo says, "and 4:2:2 10-bit video can also be sent to an external monitor or recorder with an optional micro HDMI cable."
Matt Gottshalk
Resident Preditor
Does this micro HDMI connection have a locking connection?
Because if not that will be a nightmare, especially when you are recording critical imagery to the yet-to-be released 5k HDMI recorder.
Because if not that will be a nightmare, especially when you are recording critical imagery to the yet-to-be released 5k HDMI recorder.
FrameFarmMedia
Veteran
I would guess it doesn't as it doesn't apear to in pictures and that would also be the major selling feature of going SDI with the YAGH box.
On my GH3 I don't use an external recorder but I use a locking mechanism to pin the cable to my cage for my monitor. There are several HDMI locking accessories out there for the various cages or baseplates that fit the GH3 and will also fit the GH4 body as its of amost the same dimensions.
Fhugen make a cage for the GH3 that features an HDMI lock. Should work for the GH4 too.
Bern Caughey
Veteran
As stated there are a number of HDMI supports on the market with some designed for specific GH cages, & more likely coming to market (can only imagine the conundrum facing cage designers looking to encase the GH4's breakout brick.
I've tried a few & settled on Wooden Camera's DSLR Quick Kit (though I swapped the top handle for a NATO rail version) & Cable Clamp).
http://woodencamera.com/DSLR/Camera-Support-DSLR/Quick-Kit-DSLR-Small.html
http://woodencamera.com/Cable-Clamp.html
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Illya Friedman
Well-known member
I had not seen it posted elsewhere, Panasonic released an official pdf spec sheet. We provided links to this file from the GH4 product pages at Hot Rod Cameras website.
Micro HDMI is a ridiculously small and fragile interface for professional, or really any use where reliability really matters. I would get the YAGH just to make the connectors more robust.
I'm not clear on where the YAGH unit gets it's 4K 10 bit signal. The Panasonic website says YAGH connects with the micro HDMI and sends the signal to it's full size HDMI port.
So what are those other two edge connectors for on the base of the YAGH? Is it a fact that the signal sent out from the Micro HDMI gets routed to the SDI ports as well, or does is the SDI get its signal from one of those edge connectors?
I'm not clear on where the YAGH unit gets it's 4K 10 bit signal. The Panasonic website says YAGH connects with the micro HDMI and sends the signal to it's full size HDMI port.
So what are those other two edge connectors for on the base of the YAGH? Is it a fact that the signal sent out from the Micro HDMI gets routed to the SDI ports as well, or does is the SDI get its signal from one of those edge connectors?
Stu Siegal
Well-known member
Yes, but if I'm reading the information that's out there correctly, the YAGH has no battery power, and no option for battery power. So unless you're shooting in a studio, it's not an option, leaving many people with the micro HDMI as the only real choice in the field.
Erik Naso
Veteran
For field use a gold mount with a 4-pin XLR power cable on it suppling 12VDC would work. The battery will be as big as the YAGH.
True North
Well-known member
There are a couple of expensive pro power options like the Anton Bauer or Sony V-Lock battery system, but they are very expensive to implement properly. By the time you purchase multiple batteries, rechargers, power distribution etc... You could be looking at $1000+, which is what I spent on my power solution. The other problem is that these power solutions also need to be rigged up and add a lot of weight. In the end it kind of defeats the purpose of buying a smaller camera system if you have to frankenrig your M4/3 camera.
David W. Jones
Veteran
I have been using V-Mount batteries to power various cameras and pieces of gear for some time now, so that is a non-issue for me.
What is an issue, is the rod mounting point on the YAGH, and the overall height of the unit.
What is an issue, is the rod mounting point on the YAGH, and the overall height of the unit.
Stu Siegal
Well-known member
Exactly, which is why I've paid very little attention to the YAGH.
Switronix makes a Powerbase 70 with the appropriate connector (IIRC, it's the same as the F3 and DBolex)... theoretically, one or two of those should power the whole shebang for a day at a cost of ~$300/battery (70Wh = ~2.5 stock GH3 1860mAh batteries). I still wouldn't consider it ideal, but it's more reasonable than the AB/V-lock solutions.
Adding up the weights, that still puts it all less than my ready-to-shoot AF100, albeit more cumbersome.
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The problem with one of those AB/V plates may be simply trying to figure out where to position everything on the rig... all the GH/YAGH audio controls are on the back and top, I/O on the right-hand side (when combined), and if you're shooting with a recorder/monitor combo, that's also probably going to need to be positioned on the back or top. Inevitably things will wind up being hung way out there on one side or far to the rear simply because they must. The "control" hand will be resting on all the XLR and power connections.
Using this off a tripod, sure, the shape is mostly irrelevant... but the more I look at it, the more I want to break out a soldering iron and invent my own cottage aftermarket industry of shoehorning GH4/YAGH guts into cast-off AF100 bodies.
Using this off a tripod, sure, the shape is mostly irrelevant... but the more I look at it, the more I want to break out a soldering iron and invent my own cottage aftermarket industry of shoehorning GH4/YAGH guts into cast-off AF100 bodies.
Barry_Green
Moderator
There's a very simple and easily viable option for use in the field -- just wear a battery belt, like a Bescor. $43, weighs 3 pounds, sling it over a shoulder or wear it on your belt. It provides 36 watt-hours of runtime. I don't know what the power draw of the YAGH is, but it can't be all that much...
Note, I'm not saying this is an IDEAL solution, but it is certainly a potential solution.
David W. Jones
Veteran
Chewbacca says… Battery belts rule!
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