CABR137 favorite

1920 x 1200 Monochrome CMOS USB3 Camera

Basler Ace U acA1920-40um

$ 499.00 each

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1920 x 1200 images at 40 frames per second
70% quantum efficiency
73 dB dynamic range
45 dB SNR

The ace series of USB3 Vision cameras offer fantastic value. This model is built on the Sony Pregius IMX249 1/1.2" sensor. It offers 2.3 MP (1920 x 1200) resolution with astounding image quality: high quantum efficiency, wide dynamic range, and extremely low noise. Delivering up to 40 frames per second at full resolution, this USB3 camera is a fantastic value.

When this camera is configured to use the sensor's full resolution, it can deliver 40 frames/second ("fps"). However, when configured to use less resolution, the frame rate will increase. As examples, 1920 x 1080 delivers 46 fps, 1920 x 820 delivers 60 fps, and 1920 x 480 delivers 100 fps. (Note maximum frame rate also depends on the exposure time and your computer.)

This camera has relatively large 5.86 µm pixels. This enables greater light sensitivity, delivers greater depth of field, and demands less performance from a lens. If configured to use its full resolution, it has an image circle of 13.27 mm and a 1" lens is needed. To instead use a lower cost 2/3" lens, simply configure the camera for lower resolution. All the following resolutions can use a 2/3" (11 mm) lens: 1500 x 1126, 1200 x 1200, 1634 x 920, 1440 x 1200. These resolutions deliver frame rates of 44, 42, 54 and 42 fps, respectively.

With USB3 Vision, a single cable is used to apply camera power and to transfer data between this camera and a PC, keeping cable runs to a minimum. An auxiliary connector is provided for terminating the input and output signals – there is a total of four.

The Basler ace provides a full set of features to address a wide range of applications. Pixel data can be output in 8 or 12 bit depth. You may adjust the camera’s black level, gain, area of interest, input debounce, and trigger delay. It features automatic exposure control, pixel binning, horizontal image mirroring, event reporting, sending of test images, and a programmable lookup table. There are also “chunk” features that include a frame counter, time stamp, trigger input counter, and CRC checksum calculator. Note that not all features may be available when using third-party software.

Because this camera is USB3 Vision and GenICam compliant, there are many third party software applications and API’s that are compatible. Basler offers their royalty-free Pylon SDK for 32 and 64 bit Windows and Linux platforms.


Sensor Resolution: 1920 (h) x 1200 (v) pixels
Sensor Size: 13.27 mm (1/1.2")
Sensor Model: Sony IMX249LLJ
Shutter Type: Global
Frame Rate (full resolution): 40 frames/second
Quantum Efficiency: 70.0 %
Dark Noise: 6.9 e-
Saturation Capacity: 32.8 ke-
Dynamic Range: 73.5 dB
Signal-to-Noise Ratio: 45.2 dB
Test Method: EMVA 1288
Lens Mount: C-Mount
Data Interface: USB