Hollyland Cosmo 2000. What a system !

IMG_2847.jpg

Hollyland Cosmo 2000

The 2000ft wireless video system that surprises me.

     Hi folks! This is my FIRST equipment review ever! but first and foremost I'd like to state that I HATE biased review, and I really mean it. So I'm gonna make this pretty clear and straightforward which part I like and don't like about this system and hope the dev team from Hollyland tech will at least hear my feedbacks. I'll be talking mostly from my direct experience on set with the system. 
Spec sheet is at the bottom of the page.

 

I've been using the Cosmo 2000 intensively for a month now, and thanks to Yi-han "Frank" Wang from Hypermedia in LA for letting me use and test this system. The first impression that I had when I first received was that it came with a nice protective case! (pelican-like). I was like "Hmm, they're not playing around. The case looks sturdy and pretty tough" But I still doubted it at that time because I haven't yet used it in the field. I opened up the case and I saw the transmitter and the receiver right away. Here are things that come in the case (might vary)

  • (1) transmitter
  • (1) receiver
  • (8) antennas
  • (1) small crab clamp
  • (1) small articulated arm with 1/4-20 screws on both sides
  • (2) Dtap to 4-pin (straight connector) cables.
    FYI: pin 1,2: ground (-). Pin 3,4: hot (+).

 

On the transmitter and the receiver, both of them have a nice little toggle on/off switch which I really like it. They also have LED indicator that tells whether the unit is on or off. 

 

 

On the receiver, there's a native v-mount (or gold mount) on the back which comes in pretty handy when you want to power the unit directly. The battery plate can be taken off if you want the unit to be low profile. 

Both units are made out of sturdy metallic material not plastic. I'd say aluminum alloy. It feels really nice in your hand.


The First Day On The Field. 

"what if the unit doesn't work, ugh is this thing really reliable? I haven't head this brand before" That's what in my head a night before a shoot. Although I had quick prep session already, but still, I literally couldn't sleep because of that concern. I was just used to having Teradek on set.

IMG_2817.jpg

The day has come. The camera on the show was Arriflex SR3 Panavised. I set up the transmitter with the analog to digital converter on the camera. Once I powered up the camera, the transmitter, and the receiver. The picture appeared on the wireless monitor real quick. The connecting time was less than 4 seconds. And once they're linked, they've never lost the connection. The only issue that occurred was the right angle BNC adaptors that we used were a little loose. So the signal from the receiver to the monitor was dipping in and out whenever someone moves or touches the monitor. Apparently, that wasn't caused by the Cosmo 2000. It's from the BNC right angle adaptors that we used.

Time goes by, the Transmitter and the receiver were getting warmer as I kept them powered on the whole day! Thanks to the dev and designer team that put a quiet fan and an internal temperature readout indicator on the sexy OLED screen on both unit. That way I could monitor the temperature of them easily. The highest readout internal temp was around 38-45 degree Celcius (100-113 F), it was outdoor under direct sunlight. Well, the units got pretty d*mn hot, to be honest, I was a little worry if it's going to fail or not. but hey they worked flawlessly. The vent fan was working at that point but it was quiet enough to shoot a sync close up dialog shot. Later on that day, I realized that the housing of the units purposely helped to dissipate the heat from the internal circuit board. (same as PIX-E5 and PIX-E7 monitor, but not as hot). And that's a wrap! We finished the first day without a single problem with the Cosmo 2000. 

After the first day, The Cosmo 2000 survived the stress and harsh working environments that I've pushed them through. All of my concerns have completely vanished as well. "Pfff"

Expect The Unexpected 

I was surprised by the fact that this thing never fails a single time.

 Weeks pass by, I still use the Cosmo 2000 on every single job. The more I use the more I learn about it. The more I learn the more I find its limitation. (serious, deep voice. slow pace) Well, there's nothing terribly bad or anything goes wrong. But actually, it's a small little detail that quite important to me and maybe to others as well. As a Steadicam operator myself, I always build a camera in the way that everything is on the same axis. I don't mount accessories on only one side, I always compensate and counterbalance the whole camera build. For example, If there's an EVF on the left side, I'd mount a lens motor on the right side to counterbalance the EVF. It makes the center of the gravity of the camera fall right at the center of the camera base. And that helps my balance on Steadicam better and less vibration. As I don't have to adjust my top stage side-to-side far out. which means my top stage stays fully contacted with the rest of the sled.
The issue that I'm talking about the Cosmo 2000 is this, it's the mounting option on both transmitter and receiver unit. There are 4-6 thread holes (1/4-20) at the bottom of both units, and that's it. There's nothing on the back, top nor on the side. which I find it's very frustrating when I need to mount the unit in a weird configuration. Plus I can't really put a velcro on it due to the groove housing shape. The velcro just doesn't stay. There's no flat surface that I can put a velcro on. And that is the only thing that I don't like. 

Other than that, it's been working flawlessly even inside a building that has a heavy radio traffic. communication channel can also be changed if they're not linked on the 1st channel (on rare occasion). Plus, it takes wide range of power input, from 7-30v. That means you can use it on both 12v and 24v system. I also made my own custom 3pin 24v power cable to power the transmitter unit directly from the Arri Alexa.

In conclusion, It's so intuitive, simple and robust. The Cosmo 2000 just works!

Hope this review helps you make a right decision. :)

 

 


Specification
Here's the product page Cosmo 2000 product page