User`s manual

Operation and Features

3-30 BASLER A202

DRAFT

3.8 Binning

Binning is available on A202k monochrome cameras. Binning increases the camera’s sensitivity

to light by summing the charges from adjacent pixels into one pixel. There are three types of

binning available: horizontal binning, vertical binning, and full binning.

With horizontal binning, pairs of adjacent pixels in each line are summed (see Figure 3-14). With

vertical binning, pairs of adjacent pixels from two lines are summed. Full binning is a combination

of horizontal and vertical binning in which four adjacent pixels are summed.

When horizontal binning is active, image resolution decreases to 502 pixels (H) by 1004 pixels

(V). When vertical binning is active, resolution decreases to 1004 (H) by 502 (V). With full binning,

resolution decreases to 502 (H) by 502 (V).

You can set binning using either the Camera Configuration Tool Plus (see Section 4.1 and the

configuration tool’s on-line help file) or binary commands (see Section 4.2). With the configuration

tool, you use the Horizontal Binning and Vertical Binning settings in the AOI & Binning group to

enable binning. For full binning, you must enable both Horizontal Binning and Vertical Binning.

With binary commands, you use the Horizontal Binning and Vertical Binning commands.

Figure 3-14: Binning

Binning is not available on A202kc color cameras.

Using horizontal or vertical binning generally increases the camera’s sensitivity by

up to two times normal. Full binning increases sensitivity up to four times normal. Af-

ter switching on binning, the image might look overexposed. Reduce the lens aper-

ture, light intensity, or exposure in this case.

With horizontal binning active, frame grabbers often require the information that the

horizontal resolution is 502. With vertical binning active, they often require the infor-

mation that the vertical resolution is 502. With full binning active, they often require

the information that the horizontal resolution is 502 and the vertical resolution is 502.

The camera’s pixel clock normally operates at 40 MHz. However, when horizontal or

full binning is used, the pixel clock is 20 MHz.