iKarus Stellar Mate Plus, User Manual

Page: 44 / 227

The StellarMate Plus Manual
44 / 227
Mechanics
The Mechanics page has the following options:
·
Initial Step size : Initial step size in ticks to cause a noticeable change in HFR value.
For timer based focuser, it is the initial time in milliseconds to move the focuser inward
or outward.
·
Max Step size: The maximum single step size the algorithm is allowed to command
as it searches for the critical focus zone. The calculated step size would be limited to
this maximum value.
·
Settle : Sets the amount of seconds to wait after moving the focuser before capturing
the next image during Auto Focus.
·
Max Travel : Maximum travel in ticks before the autofocus process aborts.
·
Backlash : Number of average frames to capture. During each capture, an HFR is
recorded. If the instantaneous HFR value is unreliable, you can average a number of
frames to increase the signal to noise ratio.
·
Out Step Multiple : This is the number that is multiplied by initial-step-size to get the
number of outward steps that the Linear Focus algorithm moves away from the initial
position at the start of focusing.