Aladin MKII Manual Ver 1.14 - Schneider Optics

20 Details
are addressed by an index ranging from 2 – 15. Both mechanical end stops of the lens (point
1 & 16) have special meaning as follows:
Focus: Focus: Lower end stop = nearest focus distance i.E. 0.45 m; Upper end stop = infinity focus
distance or above
Remarks: because the value for infinity might lie before the upper mechanical end stop of
the lens, the exact motor position for this point needs to be assigned.
Focal Focal distance distance in in meter
meter
1000
100
10
1
0,1
Sample Sample points points for for Focus Focus meta
meta
Motor Motor travel
travel
IRIS: IRIS: IRIS: Lower end stop = open T value; Higher end stop = Iris Close position
Remarks: the Close position can be also before the upper mechanical end stop of the lens
or on the other hand the lens does not feature a closed iris, but just iris values up to T16
T T values
values
25
20
15
10
5
0
Lower
end stop
Lower
end stop
Near
MeOpen
Open Meta
Sample Sample points points for for Iris Iris meta
meta
Motor Motor Motor travel
travel
Zoom: Zoom: Lower end stop = Widest focal length i.e. 8 mm; upper end stop = far focal length
(tele) i.E. 75 mm
Travel Points 2 - 15
Travel Points 2 - 15
Infinty motor position
Close Iris motor position
Upper
end stop
Upper
end stop