Set Focus

- every time you change filters -


Send focus offsets from the Clio GUI to set the focus to the value indicated in the table below. To get the current bayside Z focus position, either ask the AO operator use the BoardGUI on aosup@magswfssup.lco.cl.

Current Focus Positions

Focus Values (April 2014, also valid Nov. 2014)
Filter Wide (f/21)
Bayside Z [mm]		 Narrow (f/37)
Bayside Z [mm]
J not Nyquist 36.1
H 34.7 35.4
Ks 33.8 35.6
3.1 34.4 35.1
3.3 34.0 35.0
Lspec 34.0 * 35.0
L' 34.1 34.8
L' + 0.1% 34.2 * 34.9 *
L' + 4.4% 33.8 * 34.5 *
L' + APP 35.3 --
3.9 34.0 35.0
M' 33.2 34.7
M' + 0.1% 33.3 * 34.8 *
M' + 4.4% 32.8 * 34.3
M' + APP 30.7 --
Prism

* = Inferred from other values

Focus Values (March 2013)
Filter Wide (f/21)
Bayside Z [mm]		 Narrow (f/37)
Bayside Z [mm]
J not Nyquist 36.1
H not Nyquist 35.1
Ks 32.5 35.1
3.1 33.2 35.5
3.3 33.3 34.6
3.4

L' 33.1 * 34.7
L' + 0.1% 33.2 * 34.8
L' + 4.4% 32.8 34.4
L' + APP 35.6 --
3.9

M' 32.6 34.0
M' + 0.1% 32.7 * 34.1 *
M' + 4.4% 33.3 * 34.7 *
M' + APP 30.1 --
Prism


* = inferred from other measurements