User`s manual

Image Acquisition Control
92 Basler aviator Camera Link
However, lowering the setting can also have a negative impact on image quality, especially if
your AOI height is small. So changing the prelines setting may involve a trade-off between
increasing the maximum allowed frame rate and lowering image quality.
 If you are using normal exposure times and you are using the camera at it’s maximum
resolution, your exposure time will not normally restrict the frame rate. However, if you are
using long exposure times or a small area of interest, it is possible that your exposure time is
limiting the maximum allowed frame rate. If you are using a long exposure time or a small AOI,
try using a shorter exposure time and see if the maximum allowed frame rate increases. (You
may need to compensate for a shorter exposure time by using a brighter light source or
increasing the opening of your lens aperture.)
 Using vertical binning will increase the maximum allowed frame rate. However, using binning
also decreases the sensor’s effective resolution.
For more information about the sensor digitization taps feature, see Section 7.9 on page 133 and
Section 3.1 on page 37.
For more information about the AOI settings, see Section 7.10 on page 141.
For more information about the prelines feature, see Section 7.10.2 on page 144.
For more information about selectable pixel clock speeds, see Section 7.2 on page 102.
For more information about the exposure time, see Section 5.4 on page 75.
For more information about binning, see Section 7.11 on page 146.
An important thing to keep in mind is a common mistake new camera users
frequently make when they are working with exposure time. They will often use a
very long exposure time without realizing that this can severely limit the camera’s
maximum allowed frame rate. As an example, assume that your camera is set to
use a 1/2 second exposure time. In this case, because each frame acquisition will
take at least 1/2 second to be completed, the camera will only be able to acquire
a maximum of two frames per second. Even if the camera’s nominal maximum
frame rate is, for example, 100 frames per second, it will only be able to acquire
two frames per second because the exposure time is set much higher than
normal.