KATO is waitting for you in ISE 2020

KATO brings the newest NDI ptz cameras and controllers to meet you on 11-14th,Feb in ISE 2020

Warmly welcome to join us !

Our booth No: 15-K290

RAI Amsterdam
Europaplein 2-22
1078 GZ Amsterdam
The Netherlands

Meet you at Infocomm Orlando 2019

KATO will take the latest PTZ Cameras to attend the Infocomm 2019 on Jun.12-14th in Orlando,USA.

Booth No.: 4251

Address: Orange County Convention Center

Look forward to meeting you there!




Integrated Systems Europe – ISE 2019
February 5th-8th, 2019
Booth NO: 15-H265
Video Conference Camera’s Exhibition
Welcome to visit our booth,you will see our newest 4k/HD1080P cameras,amazing face recognition camera,latest Android all in one camera,excellent IP joystick controller,advanced microphone to control the PTZ camera etc.



On 23rd,Nov, KATO VISION Team set off again for hiking. In the Dai Parent Gallery in Dongguan, Guangdong .

The whole journey about 18 kilometers, We started at 9:00am,and finished at 11:30am
There is saying goes: A thousand-li journey is started by taking the first step.

KATO VISION, will go further in the future.

What is the difference between optical zoom and digital zoom?

Video cameras have become a normal thing in our daily life, but do you know there are optical zoom and digital zoom for cameras? And do you know the difference between them? Here is something you need to know.

Actually, the digital zoom is not a real zoom, the definition is that digital zoom is to use the processor of the camera to raise the pixel scale inside the image to get it enlarged. The principle is to use software to work out what the color is surrounding the existing pixels, then add the similar pixels by the special algorithm.


  • Low production cost (the camera price will be lower)
  • It can help the photographer to blur the background and achieve some article effect


  • Not the real zoom
  • The resolution and image quality will be damaged when using digital zoom, so the image will become blurry.

What about the optical zoom?

Optical zoom is to change the position of the lenses in the zoom lens to get the good focal length to enlarge the image. The principle is to enlarge the objects by changing the position of lens, objects and the focus. The bigger is the optical zoom, the longer you can photograph.


  • It is the real zoom
  • The image will keep high resolution and clear


  • The cost is higher than digital zoom as it is to zoom by the hardware device

(The image effect of optical zoom and digital zoom for your reference)

optical zoom

Today’s cameras all have optical zoom and digital zoom, if you are just daily use, normal cameras with small optical zoom are enough; if you want to photograph long distance objects, you need to take care of the optical zoom of the cameras. And for video conference cameras, you need to consider the optical zoom according to the scale of your conference room or your purpose to the use the conferencing cameras.

If you have any further questions or find any mistakes, please feel free to contact, I would be happy to discuss with you. Thanks for your reading and have a good day!

what do the parameters of video conference cameras mean?

Video conference allows people worldwide to have a meeting without long travel and high expense.

Definitely, a good video conference cameras can make you a good video conference system, bring you great meeting experience. But how to choose a good video conference camera? Here we will introduce the main parameters of the video conference cameras for you. To understand the main parameters of the video conference cameras can offer a good reference when choosing your video conference solutions.

There are image sensor, effective pixels, lens, horizontal view angle, signal system, resolution, minimum illumination, image effect, signal to noise ratio, preset position, output, and control protocol. Let check one by one.

Image sensor: the most used image sensors are CCD and CMOS, it is the most important part of video conference cameras as well as other cameras, without image sensor, the cameras will not able to capture the image. Normally, there are 1/2.8”, 1/1.8”, 1/2.5”, 1/3”, 1/4” image sensors, the bigger, the better. The brand image sensors are SONY, PANASONIC, SHARP, A1(L.G.), SONY is of the highest quality, but note: I AM NOT MEAN THAT THE CAMERAS ARE GOOD IF IT USE THE SONY IMAGE SENSOR, it actually depends on how good is the manufacturer.

Effective pixels: it is the real pixels that involved in image producing, the bigger, the better

Lens: it is a must part of cameras, the quality of lens affect the quality of the image. Here we need to consider the optical zoom of the lens based on your demands. The bigger of the optical zoom, the longer image you can capture.

Horizontal view angle: The bigger of the angle, the wider you can see, but it will be the close shot; The smaller of the angle, the more narrow you can see, but it will be the long shot.

Signal system: there are two main signal systems in the world, NTSC (National Television System Committee) and PAL (Phase Alternating Line), it is television broadcasting system, PAL is mainly used in Europe, China, Middle East, and Hong Kong, NTSC is mainly used in Japan, America, Mexico, Canada and so on, To use what kind of system depends on where you are and what your device support.

Resolution: normally we can see 1080P, 720p, 480p, these all refer to resolution, High definition means the resolution is more than 720p, or it is standard definition. The higher of the resolution, the more clear of the image.

Minimum illumination: illuminance is a way to measure the sensitivity of the cameras, it measures what the darkest condition is that the camera can capture images, use LUX as the measurement. The lower of the Lux, the darker that the cameras can work.

Image effect: it means what kind of image effect that the camera can support, normal options are color, Black and white, Electronic flip.

Signal to Noise ratio(S/N): Signal voltage and noise voltage ratio, noise includes power clutter, random clutter, single-frequency clutter and so on. The standard is 45-55 dB, for video conference cameras, if S/N is about 50db, it is good.

Preset Position: Preset position is very important in the meeting that gets the “big guy” involved or for the big conference or live show, it can allow you set up the position you want the camera to direct in advance.

Output: Normal output has HDMI, SDI, USB, VGA and VIDEO, it depends on your demand and the output interface of your current device.

Control Protocol: For video conference telecommunication, the control protocols are VISCA and PELCO P/D, they are standard protocol in this industry. And we often use RS232 control cable under VISCA, you only use series connection if want to use more than one cameras under VISCA, and the most you can connect is 7pcs cameras. But under PELCO P/D, you must use the parallel connection, there are no limits on the number of cameras you can connect, we use RS-422 OR RS485 cable, this cable can transfer information for thousand meters, but RS-232 cable only can transfer within 15 meters.

I believe you can choose the most suitable video conference cameras for your business now. If you have any further questions or find any errors, please feel free to contact, I`d always like to discuss and learn together.

How to choose the right video conference cameras or solutions for your demands?

Nowadays, people worldwide more and more use video conference for business, video communication has been widely used in our business and daily life. Truthfully, the video conference can save us time and money on communication, do you really know how to choose the right video conference cameras or solutions for your demands?
Here are three steps to help you choose the correct cameras for your video conference system. Here we go:

Step 1: Find out what your main purpose is to use the camera
Video conference cameras can be used for video business meeting, global video conference, remote education, telemedicine, live events, church events, broadcasting and so on.

1, Video conference: If you are going to use it in your conference room, then the first thing you need to consider is how big is your meeting room and how many people will attend the online meeting(you need to choose other related devices according to this).
For normal conference room, a fixed optical zoom camera or 10X or below 10X optical zoom camera is enough, USB output is ok as it is convenient and no driver needed, for example, our model JT-HD30DU or JT-HD90DU, They are all USB output, 1080p resolution, no noise pan tilt, JT-HD30DU is 10x optical zoom, JT-HD90DU has 3X and 10X optical zoom, all easy to use and suitable for the conference.
If your conference room is big, then you need to choose one more than 10X optical zoom, for example, 18X or 20X optical zoom.

2, Church live events: as the light in the church is complicated, it requires quality image sensor to capture the clear image in different light conditions, so the cameras with SONY image sensor and big optical zoom will be right choices, such as SONY 7310 or SONY 7500 image sensor with 20X or 30X optical zoom

3, Telemedicine: if you are going to use it to communication on the medical solution or medical conference, you can refer to the first one, if you are going to use it for remote surgery, then I suggest you go directly to the big brand company with really advanced technologies such as Sony, Huawei, as the remote surgery is about life, it requires very clear and stable cameras, also better with no delay on data transfer.

4, Broadcasting: If your broadcasting requires no delay on data transfer, I also suggest you go directly to the big brand company for solutions. If you don`t have a high standard on data transfer, then you can try with 20x or 30x optical zoom cameras with Sony image sensor, and you need to pay attention to the output interface to check if they can match with your other devices.
Here offer 4 solutions for your reference, If you need to know more solution suggestions, please contact me, I can help.

Step 2: Check the main factor that determines the quality of the cameras
The main factors determine the quality of a camera is stability, image effect, functions, and output interface, these depend on the image sensor, effect pixels, lens, signal system, resolution and so on, you can refer my another article here. https://www.linkedin.com/pulse/what-do-parameters-video-conference-cameras-mean-rick-fan/

Step 3: Choose a professional manufacturer or a brand to purchase
Video conference camera is the product with high technique, it is not a product that anyone can make, so ask yourself, how can a company make quality cameras with just 1-2 year experience? (Of course, this is not a must but a reference in the checklist) Choose a professional manufacturer or a brand company will save your time to choose and compare. A good manufacturer will discuss your real demand on cameras, then offer suitable solutions after understanding your demand, and they will also offer lifetime technical support and the good warranty, you can get what you need with assurance and time-saving.
The article ends, but learning never ends, welcome to share your experience and knowledge on choosing the right video conference cameras, I am always open to discuss. Also, if there are some mistakes in the article, please feel free to correct, it will be much appreciated. Thanks for your reading.

Trends on video conference cameras