Battery powered HDMI splitter

J

Jon Chema

Active member
Anyone know if its possible? I'd like to split the signal coming out of my Canon 7D and sent one split to an on-cam monitor and the other to a director monitor. Only problem is i'd really rather not be tethered by a power cable as well....HDMI is one thing but a consumer grade power cable could be an issue.
 
Yeah, a cable connects the battery to the camera rig. I built a small distribution box that mounts on my rig and feeds whatever I have on the rig that needs power except the camera.

.
 
Hey Chris,

Have you had any issues with the View HD splitter? I just got mine and I get an annoying PINK hue on the image, washing it out to the point of uselessness. My research leads me to believe its a RGB/YCbCr issue. My onboard monitor is the Liliput. When I experimented with a 1x4 splitter I didn't have this issue. Any thoughts?

FYI, I'm using a 7d with high quality hdmi cables, all brand new so that shouldn't be the issue.

Thanks,

Ian
 
Chris,

I just tried an unpowered one and it does not work. Well, it doesn't work if you want a decent picture.

It could have been because on one of the split legs it ran into an AJA HDMI to SDI convertor. I will try the powered one and see how that works.
 
I send both monitors I use - external and onboard - signals from the splitter/amp and I notice no degradation of quality at all.

I would never bother with an unpowered splitter.

.
 
Chris Santucci said:
I power it with the same 12 volt battery I use to power the onboard monitor although with a 12volt dc to dc converter to get the voltage down to 5 volts for the splitter only.

.
Click to expand...

What is this converter and where do you buy it? I've been looking for one but can't seem to find anything that does that.
 
Hi first time poster. I've been reading this forum for years and find it to be the best for info on filmaking. In any event, I know this thread has been cold for a year now but hope someone can help me out. I just bought a Atmos ninja and am not happy with the monitor for pulling focus. I found this thread while I was researching splitters. One distributer had this posted on their site:

Splitters will always only display at the lower resolution capable of all the displays connected. With TVs being in Standby when they are "powered off" they are still sending a signal back letting the video source know what resolution the display is capable of. So if 2 displays are connected to the splitter and one display is capable of 1080p and the other display is only capable of 720p both TVs will always display a 720p video no matter what.

So is this true when using the camcorder as the source? If I use a 10"1024x600 monitor instead of the ninja, will Atmos' product recieve the full 1080 59.973i signal from my camcorder or just the 720p signal from the 10" monitor. Any help in this area is greatly appreciated!
 
Chris Santucci said:
I would never bother with an unpowered splitter.
Click to expand...

Maybe you should give one a try - I use a $5 piece, no extra cables or batteries. On set it sends to my on-camera Marshall, and to a 22" HDTV on a rolling stand, with a 20' cable. The big one's great for focus, and I get it very close to the calibrated Marshall with the remote & menus. No glitches at all, just plug & play for five bucks. Pull the plug to the 22 for handheld, crane or dolly shots.

I did play around with it on my editing setup, and my Matrox gear doesn't like it - I get some 1-pixel wide banding artifacts - but at my desk, I don't mind having a active splitter powered up in my gear rack. On-set, the no-power solution is one less hassle to deal with.
 
Robert Tinari said:
Splitters will always only display at the lower resolution capable of all the displays connected. With TVs being in Standby when they are "powered off" they are still sending a signal back letting the video source know what resolution the display is capable of. So if 2 displays are connected to the splitter and one display is capable of 1080p and the other display is only capable of 720p both TVs will always display a 720p video no matter what.
Click to expand...

I use a Lilliput 7" monitor on the camera rig and a relatively cheap flatscreen computer monitor for my director. The (unpowered) splitter scales the picture on my Lilliput down slightly whenever the flatscreen is plugged in because the flatscreen has a lower resolution.

I assume the solution would be to use a higher resolution monitor for the director.
 
Thanks for the replies.

"Te (unpowered) splitter scales the picture on my Lilliput down slightly whenever the flatscreen is plugged in because the flatscreen has a lower resolution."

That prety much varifies what the distributer told me. What if I used the composite out on my camcorder? Will I get a 1080 i signal on the monitor that my camcorder is out puting?
 
I see inexpensive rechargeable dry cell 12 volt batteries in the electronics store. They're bulky so not for carrying around, but can they be used with step-down adapters to power things like portable mixers, small monitors, etc?
 
You must log in or register to reply here.
Back
Top