Focus Class
azcam.server.tools.focus.Focus
Bases: Tools
Class for focusing a camera.
Either the telescope or instrument may be moved for focus adjustment. The focus sequence performed is:
- integrate
- move focus
- shift detector (2x last time)
- (repeat above steps)
- readout
- return to starting focus position
- save image
__init__(tool_id='focus', description=None)
Create focus tool.
abort()
Abort focus exposure.
initalize()
Initialize focus routine.
reset()
Reset focus tool to default values.
run(exposure_time, number_exposures, focus_step, detector_shift)
Execute the focus sequence. If focus.set_pars() was previously called then those values are used and input here is ignored. Args: number_exposures: Number of exposures in focus sequence. focus_step: Number of focus steps between each exposure in a frame. detector_shift: Number of rows to shift detector for each focus step. exposuretime: Exposure time in seconds.
save_keywords()
Save focus related keywords for image header.
set_pars(exposure_time, number_exposures=7, focus_step=30, detector_shift=10)
Set focus related parameters. Args: number_exposures: Number of exposures in focus sequence. focus_step: Number of focus steps between each exposure in a frame. detector_shift: Number of rows to shift detector for each focus step. exposuretime: Exposure time i seconds.