Iron 4521

Small Form Factor CoaXPress ruggedized camera

Key Features:

  • 21 Megapixel video up to 232 fps
  • Monochrome and Color models
  • Up to 12W power at full rate
  • Full image processing feature set
  • Up to 50 Gbps CoaXPress interface
  • F, EF, Birger EF or M42 mounts are available
  • Commercial and rugged industrial grade options
  • Full EMVA1288 report
  • Full built-in self-test (BIT)
  • Full built-in voltage testing
  • Customization as per user requirements
  • Wide temperature range
  • Vibration resistant


  • Perimeter vision
  • 3D
  • Low light surveillance
  • Special Effects
  • VR

Innovative Approach –The Iron4521 CoaXPress is a low-cost, low-power, high-resolution global CMOS camera with up to 50 Gbps CoaXPress v2.0 interface (Micro-BNC connector) which supports 21 MP high-quality video at rates of up to 232 fps.

Intelligent Design –The GSPRINT 4521 is a global shutter sensor with a 4.5µm pixel size. With a compact outline, the camera can be fitted into tight spaces. Superior sensor performance allows very low light vision capabilities.

The CoaXPress interface allows high-speed data transmission for digital imaging in machine vision applications, faster than other standards, such as Camera Link or GigE Vision. Our CoaXPress Iron robust cameras are ideally suited for industrial, defense, and aerospace machine vision systems. With dimensions of 75x 75 x 44.4 mm, The Iron CoaXPress 4521 ruggedized camera is designed to fit very small places. The wide range of operating temperatures, spanning from -40°C to 70°C, enables it to function under severe environmental conditions. The high resolution of 5120×4096 provides a sensitive high-quality video output at a high speed that would meet almost any need.


Pixel size 4.5 µm x 4.5 µm
Resolution 5120 (H) x 4096 (W)
Sensor size 23 mm x 18.4 mm APS-C
Sensor Gpixel GSPRINT 4521
Video output X4 channels CoaXPress v2.0 up to 50 (12.5 x 4) Gbps (CXP3, CXP6, CXP12)
Interface connector x 4 Micro-BNC (HD-BNC)
Digitalization 8, 10 or 12-bit
Electronic shutter Global shutter
Shutter speed TBD
Exposure control Automatic Exposure/Gain, manual Exposure/Gain
Image acquisition Continuous/Triggered
Trigger input [1] External, pulse generator, SW
Trigger mode Free run, externally or internally triggered
Trigger options Edge, de-bounce
Output resolution 8 bit, 10 bit, 12 bit
Maximal Frame Rate NS model:

232 fps@8 bit

186 fps@10 bit

155 fps@12 bit

Subsampling 1 x 2 / 2 x 1 / 2 x 2 (user configurable)
Monochrome/color Monochrome / color
Full well charge 32 ke- @ PGA gain x0.75 / 120 ke- (2 x 2)
Dynamic range 65dB @ PGA gain x1.25
Dark current 11.4 e- pxl/sec @ 50°C
Quantum efficiency (QE) X FF <63% @570 nm
Temporal noise 6.1 e- @ PGA gain x 6
Angular response 17° (80% horizontal response)
Regulation FCC Part 15 Class A, CE, RoHs2 (official certification is optional)
On camera processing Defect pixel correction
Digital binning (2 x 2)
Gain (Analog/Digital) – manual/auto
ROI Auto/Manual black level
Auto exposure/Gain Image H/V flip
Pulse generator Yes, programmable at 8 ns increments
Additional features Over/under voltage protection
Reverse-voltage polarity protection
Three points of temperature sensing
Frame-by-frame shutter speed change
Per-pixel FPN (optional)
Global reset
GPIO connection Two inputs, two outputs, external trigger & strobe controller

Mechanical & Electrical

Dimensions (without lens mount) 75 mm x 75 mm x 44.4 mm (Height x Width x Depth)
Lens mount F-Mount, Canon EF-mount, Birger EF-mount or M42-mount
Weight (without lens or mount) 450g
Typical current 375mA at 24V  input
Power input PoCXP full support

External 10-28V input

Power consumption <11W @ 24V DC
Mount Front mount
Heat dissipation Active airflow  (Fan)
Operating temperature Commercial: 0°C to 50°C, 20-85% humidity (non-condensing)
Industrial: -40°C to 70°C, 20-85% humidity (non-condensing)
Storage temperature Commercial: 0°C to 55°C, 20-85% humidity (non-condensing)
Industrial: -40°C to 75°C, 20-85% humidity (non-condensing)
Shock/Vibration[2] MIL-SPEC 810F



  1. The output can be synchronized to the trigger on a frame by frame basis.
  2. MIL 810F in only available for the Industrial/Rugged model and is not available in the commercial version.

* Performance is measured at full resolution, maximum bitness and the maximum frame rate for that bitness.

** KAYA Instruments reserves the right to update the data sheet from time to time without prior notice.


Iron CoaXPress camera work flow with Frame Grabber

Iron CoaXPress camera work flow with Frame Grabber

*KAYA’s Vision Point software and SDK are highly recommended. For more information please click here.

GMAX4521 Spectral Response

KAYA designs and manufactures high-resolution to ultra-high-resolution cameras with features designed specifically for ease of integration and use for Surveillance, Mapping and Terrestrial Imaging.
The Aerospace Industry is an ideal match for the KAYA camera portfolio. By adhering to strict quality protocols, KAYA’s rugged aerospace imaging products are made to last and meet the demand our worldwide customers have come to rely on.
KAYA's cameras include a wide spectrum of cameras from VGA to Gigapixel. Our small resolution cameras are optimized for the standard machine vision to the most demanding applications. Our small form factor cameras are capable of integrating with most of image processing libraries from leading vendors.
KAYA’s Broadcast POV and Slow-Motion Cameras provide excellent image quality in a compact size, fiber interface, integrated lens control, image enhancement algorithms etc.
KAYA designs and manufactures ruggedized CMOS cameras which meet stringent MIL SPEC 810 standards. These cameras withstand extreme vibration and temperatures.
Iron camera series provides an array of sensors which include the highest quality CMOS and offer features including binning, double triggering, frame accumulation and exposure times from 1 microsecond up to few seconds.
KAYA’s high-speed cameras targeting ultra-fast experiments and Slow-Motion replay provide excellent image quality in a compact size, fiber interface, multi Tera Byte external recording memory, integrated lens control, image enhancement algorithms etc.
KAYA meets the rigorous environmental and imaging needs of Traffic & Transportation systems by providing many automatic features including iris, gain, exposure and white balance as well as precise control over multiple outputs for strobe.