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Basler acA4112-30um / acA4112-30uc machine vision camera
BaslerHigh-resolution cameras
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Basler ace L acA4112-30um / acA4112-30uc

acA4112-30um

The Basler ace L acA4112-30um/30uc is a USB3 Vision compliant industrial area scan camera built on the Sony Pregius IMX253 1.1" progressive scan CMOS sensor with a global shutter. It offers 4096 x 3000 px (12.3 MP) resolution at up to 30 fps over a USB 3.0 SuperSpeed (5 Gbit/s) interface, with 10/12 bit output and a typical dynamic range of 72.8 dB. The -30um is monochrome and the -30uc is color; both share a C-mount, a compact 35.8 x 40 x 30 mm box housing, and are powered over USB. The camera supports GenICam and USB3 Vision protocols and includes opto-coupled and GPIO I/O lines via a Hirose 6-pin connector.

Brand
Basler
Camera type
Area scan
Interface
USB 3.0 (USB3 Vision, 5 Gbit/s SuperSpeed)
Resolution
12.3 MP
Horizontal resolution
4096 x 3000 px (4112 x 3008 full)
Mono / color
Mono (acA4112-30um) / Color (acA4112-30uc)
Sensor manufacturer
Sony Pregius
Sensor model
Sony IMX253 (IMX253LLR mono / LQR color)
Shutter
Global shutter
FPS
30 fps (up to 30.9 fps)
Mount
C-mount
Sensor size
14.13 x 10.35 mm (1.1", 17.6 mm diagonal)
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Technical overview

The Basler ace L acA4112-30um/30uc pairs a Sony Pregius IMX253 1.1-inch global shutter CMOS sensor with a USB3 Vision interface, and the combination defines what this camera is good at. The 12.3 MP sensor reads out 4096 x 3000 px (4112 x 3008 full) at up to 30 fps over USB 3.0 SuperSpeed at 5 Gbit/s. The global shutter is the decisive trait: every pixel is exposed simultaneously, so parts moving on a conveyor or rotating in front of the camera are captured without the skew and smear a rolling shutter would introduce. That makes this a true freeze-frame sensor for inspection of objects in motion, not just static scenes. With 3.45 um pixels across a 14.13 x 10.35 mm active area (17.6 mm diagonal), the sensor resolves fine detail while keeping a generous field for its class.

The 12.3 MP resolution is the reason to specify this camera: at native magnification each pixel covers 3.45 um at the sensor, so across a typical field of view you get very small object-space sampling, which is what dimensional measurement, fine surface defect detection, and dense print or character inspection demand. The -30um monochrome variant (IMX253LLR) maximizes contrast and per-pixel light sensitivity and is the right pick for defect and metrology work, while the -30uc color variant (IMX253LQR) adds a Bayer array for tasks where hue carries information such as color-coded print or assembly verification. Output is 10/12-bit with a typical dynamic range of 72.8 dB, giving headroom to hold both bright specular highlights and shadow detail in a single exposure, which matters on glossy electronics, metal, and semiconductor surfaces.

On the integration side, the camera uses a C-mount, so lens selection must respect the 1.1-inch format and the small 3.45 um pixels: choose a lens with sufficient resolving power and the right image circle so you do not throw away the sensor's resolution. The Hirose 6-pin connector provides opto-coupled and GPIO I/O lines for hardware trigger-in and strobe-out, letting you synchronize exposure to an encoder or sensor and fire strobed lighting in lockstep with the global shutter. Power comes over the USB cable (3.6 W typical at 5 VDC), so a single cable handles data and power within USB 3.0 cable-length limits. The compact 35.8 x 40 x 30 mm box housing, 136 g weight, GenICam compliance, and 0 to 50 C operating range make it straightforward to design into space-constrained machines and standard vision software stacks.

Best for

  • High-resolution defect and surface inspection on electronics, semiconductor, and metal parts where 12.3 MP and a monochrome sensor resolve fine flaws
  • Dimensional measurement and metrology of parts in motion, where the global shutter eliminates motion distortion at 30 fps
  • Industrial OCR/OCV and print inspection that needs dense pixel sampling across the field of view
  • Robot guidance and pick-and-place that benefit from a compact, USB-powered camera with hardware trigger and strobe I/O
  • Color-coded assembly and print verification using the acA4112-30uc color variant where hue must be read

Selection notes

  • Match the lens to the format and pixels: this is a 1.1-inch sensor with 3.45 um pixels, so use a C-mount lens with an image circle that covers 17.6 mm diagonal and resolving power high enough to feed 12.3 MP, or effective resolution drops below the sensor's capability.
  • USB 3.0 has practical cable-length limits; plan cable runs accordingly or use active/optical USB3 cabling, and confirm the host has a dedicated USB3 controller with enough bandwidth to sustain 30 fps at full resolution.
  • Choose the variant deliberately: the -30um (mono, IMX253LLR) is best for defect detection and measurement, while the -30uc (color, IMX253LQR) is for tasks where color is the inspected feature.
  • Use the Hirose 6-pin I/O to drive hardware trigger-in from an encoder or part sensor and strobe-out to pulse lighting in sync with the global shutter; this is how you freeze fast-moving parts cleanly.
  • Budget for thermal and mounting: the camera draws 3.6 W typical, operates from 0 to 50 C, and is a 136 g, 35.8 x 40 x 30 mm box, so provide a stable mount and airflow when running continuously.

Specifications: General
BrandBasler
Camera typeArea scan

Specifications: Sensor
Resolution12.3 MP
Horizontal resolution4096 x 3000 px (4112 x 3008 full)
Mono / colorMono (acA4112-30um) / Color (acA4112-30uc)
Sensor manufacturerSony Pregius
Sensor modelSony IMX253 (IMX253LLR mono / LQR color)
ShutterGlobal shutter
Sensor size14.13 x 10.35 mm (1.1", 17.6 mm diagonal)
Pixel size3.45 x 3.45 um

Specifications: Performance
FPS30 fps (up to 30.9 fps)

Specifications: Interface
InterfaceUSB 3.0 (USB3 Vision, 5 Gbit/s SuperSpeed)
ProtocolsUSB3 Vision, GenICam

Specifications: Optics
MountC-mount

Specifications: Electrical
PowerPower over USB (3.6 W typical @ 5 VDC)
Power consumption3.6 W

Specifications: Environment
Operating temperature0 to 50 °C

Specifications: Mechanical
Dimensions35.8 x 40 x 30 mm
Weight136 g
Housing materialBox

Frequently asked questions

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