User`s guide

SPECIAL GUIDES
SDK SECTION 9
Page 73
Vertical Pixel Shift Capabilities
Depending on the camera type and model there will be variations in the number of Vertical Shift Speeds
available.
The first step in this process is to determine the number of vertical shift speeds using the
GetNumberVSSpeeds function. Following this the value of each vertical shift speed can be found using the
GetVSSpeed function.
Since the camera may be capable of operating at more than one vertical shift speed the
GetFastestRecommendedVSSpeed function will return the index and the value of the fastest recommended
speed available. The very high vertical shift speeds may require an increase in the amplitude of the vertical
clock voltage using the SetVSAmplitude function.
The GetFastestRecommendedVSSpeed function returns the fastest speed which does not require the vertical
clock voltage to be adjusted. If the fastest recommended speed is selected the vertical clock voltage should
be set as normal.
NOTE: Exercise caution when increasing the amplitude of the Vertical Clock voltage, since higher
clocking voltages may result in increased Clock-Induced Charge in your signal. In general, only the
very highest speeds are likely to benefit from increased vertical clock voltage amplitude.
Once the information has been retrieved the relevant selections can be made using these functions:
• SetVSSpeed
• SetVSAmplitude
An example of the pseudo code for this capability is shown in figure 15:
Figure 15: Example of vertical pixel shift pseudo code