Hollyland Cosmo C1 [Official] 1000ft Wireless HDMI/SDI Video Transmission System 40ms 1080P 12-20Mbps 5G Image&Audio Transmitter Receiver, Embedded UVC Live Stream Seamless Channel Switch SDI-Loopout

Despite the video latency if that is a factor for you then probably look at another brand but if it isn’t this is a very excellent piece of kit. I do production sound so latency was not at all an issue for me. It’s like the Shure Axient of Wireless video transmission, changing frequencies when disrupted.

Perfecto

I’ll start off by saying I haven’t used these extensively, really 2 days of on-set testing. I work on big budget movies and tv shows and we only use SDI cables, so I cannot comment on any HDMI capability. That said, on a professional set nowadays you have an incredible amount of signals being bounced around and that was a huge worry of mine about the C1. My feed being wireless in this way is one of the last things that needs to be wireless (behind sound’s various antennae, wireless focus pullers, wireless iris controls, wireless feeds for AC’s & DP, wireless streaming iPad monitoring like QTake) but it would be so much more helpful if I could be. I plugged these in and expected various other depts to start complaining about things malfunctioning. But nothing happened. Everything worked!I didn’t truly get to test distance. I was never too far from the transmitter but I was far enough and through some walls where I expected less. Keep in mind I’m used to using Teradek systems that are much, much more expensive than this and I’m used to those being quirky. The video quality was good, the lag was not noticeable (this is the reason I don’t use a QTake or other streaming monitor system, I can’t have the lag). I’m not a focus puller so I can’t speak to if it’d work for them as advertised but I did put my laptop right next to a focus monitor and to my eye couldn’t see a difference. The image was a little dark, there’s many reasons for this so I’m not going to blame the device for that. I bought a few 970 batteries and I was able to run the receiver off of one for almost a full 13 hour shooting day, turning it off for lunch and when there’d be some downtime between setups.So far so good. It comes in a hard shell case that has all the foam cut to size, with 2 different types of antennas (with more types available), a DC adapter, a USB A to USB C adapter and a mini magic arm. Which is a nice array of stuff. I do think it would make more sense to have 2 DC adapters however. And you might be close to throwing that USB adapter away since you’re just gonna plug it straight into a USB C port anyway right? Here’s the rub. This thing is super picky about what cables it’ll let power it and provide video (one of the biggest advertised features is how you can just plug it into your computer). I haven’t heard of anyone being able to use a pure USB C to USB C cable of any kind (though you’ll see that in their ads). I’ve tried A LOT and not even the one that powers my Blackmagic Ultrastudio Recorder 3G and takes a video feed from it works. According to the actual company, you need a USB A on one end (this the adapter) to supply enough power. Also you won’t see the device in any device list unless it is receiving an image. The other thing is the support is less than stellar, mostly directing you to a Facebook page that mostly has people asking unanswered questions.

The media could not be loaded. Me encanta lo estable y facil de usar que son estos Productos de Hollyland.●Con el Mars 400S Pro envio señal de video y audio al proyector de la Iglesia.●Con los Cosmo C1 recibo 2 señales de video de 2 cámaras en el AtemMiniProTengo 4 meses usando estos productos, 3 veces por semana.El grupo en facebook es una herramienta de ayuda en todo momento.Hollyland es el siguiente nivel en mis trasmisiones en vivo y me permite moverme con mis equipos a cualquier lugar, "no mas cables", wireless te permite nuevas formas de ver tu imagen en tiempo real.

Unpacked these on site expecting them to work like the other Hollyland 300s we have (basically plug and play) and these just would not work. The transmitter/receiver connected successfully but the image would flicker non-stop, even when the two units were sitting on a desk next to each other. We tried manually setting the channel (instead of Auto mode) and same thing. Changed HDMI cables, tried modifying antenna positions, playing with the menu settings, nothing. We believe we got a defective set and unfortunately had to return them. Wasted too much time getting them to work.Since we were in a hurry to start our shoot, we plugged in our 300s and away we went. NO hassles.Not sure if I would risk investing in these again. Great concept. Poor execution.

We are on tour and opening for the headliner. Our front of house camera needs to be struck and on the truck before 5 finger death punch needs the dock. We couldn't wait to strike a camera cable from under the feet of the audience. This option has been flawless. We added a second unit to our photographers camera. It has added wonderful options for our imag.

Connection was very easy. Using it was super easy too.

Absolute buy! 100 percent!