PTZ Cameras

PTZ or robotic cameras allow a single operator to control multiple devices, thereby saving on production costs. Their quality and ease of use have improved greatly, to the point that some of them can be used interchangeably with much more expensive studio cameras.
   

What is a PTZ camera?

The acronym PTZ stands for Pan-Tilt-Zoom, where Pan means rotating on the vertical axis, i.e., a horizontal movement of the image, Tilt moves the camera up and down, and Zoom allows you to zoom in or out to adjust the area you are trying to capture. In short, a PTZ camera is a camera that can move on three axes. It is commonly used in fixed installations such as auditoriums, training rooms, or conference rooms, but it is also an exceptional resource in temporary installations such as concerts and all kinds of shows, where we can achieve amazing shots without the need for large investments.
 

What are PTZ cameras used for?

PTZ cameras are possibly the most versatile cameras available. They are perfect for endless applications thanks to their high optical quality and remote control, which can even be operated from the other side of the world. They allow you to easily switch from a general shot to a specific detail thanks to position memories. You can remotely rotate the view to different angles. All these features make a PTZ camera an all-in-one camera. It will allow you to replace multi-camera systems more efficiently and, instead of several fixed cameras, you will have a few PTZ cameras and still be able to capture more of each event. PTZ cameras are designed for fixed installations and work very well in low-light conditions. Camera control can be performed remotely using common protocols such as VISCA, Pelco-D/P via RS232, RS485, IR, and, most commonly, via IP, using state-of-the-art protocols such as NDI. Each manufacturer provides its own controllers, but since standard protocols are widely supported, it is more than likely that a camera from one manufacturer can be controlled from a panel of another brand.
 

Types of PTZ Cameras for Broadcast and Events

In this field, PTZ cameras focus on image quality, movement precision, and integration with existing production workflows.
  

According to Video Quality and Connectivity:

4K/UHD PTZ Cameras: These are the standard for modern productions. They offer ultra-high resolution that allows for cropping without loss of quality when broadcasting in HD, or an immersive experience for large-format displays.
   
1. Connectivity: They typically have multiple output options:

PTZ Cameras with Large Sensors (1 inch or Micro Four Thirds): Some high-end PTZ cameras incorporate larger sensors than standard PTZ cameras (which typically have 1/2.3“ or 1/2.8” sensors). A larger sensor offers:
   

Better low-light performance: Less noise and greater clarity in challenging lighting conditions.
Shallow depth of field: Allows for a more “cinematic” look with blurred backgrounds.
Greater dynamic range: Captures more detail in highlights and shadows.
    

Based on their movement and control capabilities:

Smooth and precise movements: Essential for avoiding jerky movements in live shots. Broadcast PTZ cameras have high-quality motors that allow for smooth, quiet transitions, as well as the ability to save and recall multiple preset positions with great accuracy.
   
Adjustable Speed: The ability to vary the speed of pan, tilt, and zoom to suit different scenarios, from slow, dramatic movements to fast tracking of subjects.

Tally Control: A standard feature in this environment. Cameras include tally lights (usually red for “on air” and green for “ready”) that indicate to talent and operators which camera is currently being used in the video mix. This is essential for live directing.
   
Remote Controller Compatibility: Operated with dedicated PTZ joysticks (physical or virtual/software) that offer precise control over camera movement and functions.
   
Automation and Presets: The ability to program complex movement sequences and save them as presets, allowing the operator to activate an entire sequence with a single button. Some offer advanced automatic tracking for talent on a stage.
     

Depending on the Specific Use Environment:

Studio/Indoor PTZ Cameras: Designed for controlled environments, they offer a discreet design and optimized connectivity for studio cabling.
   
Outdoor/Sports PTZ Cameras: Built to withstand harsh weather conditions (IP rating, heaters, optional lens cleaners). They are rugged and often have extremely powerful optical zoom (e.g., 30x, 40x) to cover large fields or stadiums.
  
Specialized PTZ Cameras (Mini/Discreet): Designed to be as small and discreet as possible, ideal for installation in places where a large camera would be intrusive (e.g., inside a television studio, in corners of a stage).
   

Other Relevant Features:

PoE++ (Power over Ethernet Plus Plus): Allows the camera to receive power, data, and control through a single Ethernet cable, greatly simplifying installation and cabling.
  
Genlock/Black Burst: To synchronize the video signal from multiple cameras in a studio environment, ensuring that all video streams are perfectly aligned in time.
  
XLR Audio Input: To connect professional microphones directly to the camera for high-quality audio.
  
Web GUI and Open APIs: For advanced configuration via web browser and integration with third-party automation systems.
   

Why are PTZ Cameras Indispensable in Broadcast and Events?

Staff Efficiency: A single person can operate multiple PTZ cameras, significantly reducing staffing costs compared to manually operated cameras.
   
Flexibility and Versatility: They can be quickly relocated and reoriented to accommodate different shooting angles or program changes.
  
Discretion and Aesthetics: Their compact size and ability to be controlled remotely make them less intrusive on a set or at an event, improving visual aesthetics.
  
Shot Consistency: They allow shots to be saved and replicated with precision thanks to presets, ensuring consistency in repetitive or live productions.
  
Access to Small or Dangerous Spaces: They can be placed in locations where it would be difficult or unsafe for a camera operator (e.g., cranes, lighting trusses, inside enclosed spaces).
  
Integration into IP Workflows: With the growing adoption of protocols such as NDI, PTZs integrate seamlessly into all-IP production environments, simplifying cabling and infrastructure.
  
Wide Coverage: With one or two PTZs, you can cover a very large area, capturing wide shots and close-ups without the need for multiple fixed cameras.
   

If you are looking for a PTZ camera, whatever your needs, you are in the right place. Our range of PTZ cameras covers all applications, whether you need a camera to communicate with your company, use your camera to post on social media, or for a television studio, here you will find the robotic camera you need at the best price.
    
If you can't find what you're looking for, or need advice, don't hesitate to call us at 91 545 60 49 or write to us at tecnico@avacab.es