1. φ/θ Type Mechanisms operation at different field points without a derotation NGAO Laser Guide Star 7/13/20151Alex Delacroix

2. The “F Image in” orientation is fixed to simulates an object observed. 7/13/20152Alex Delacroix Probe F Image in F Image out Periscope Tip Tilt Collimator Lens Focusing Lens F at pupil on TT 1) Crank and lever Arm Horizontal: “F image” out is vertical

3. 2) Crank Horizontal and Lever at 45°: “F image” out is still vertical 7/13/20153Alex Delacroix Probe F Image in F Image out Periscope Collimator Lens Focusing Lens F at pupil on TT (TT Not Shown for view clarity) The “F Image in” orientation is fixed to simulates an object observed.

4. 3) Crank and Lever at 45°: “F image” out is still vertical 7/13/20154Alex Delacroix Probe F Image in F Image out Periscope Collimator Lens Focusing Lens F at pupil on TT (TT Not Shown for view clarity) The “F Image in” orientation is fixed to simulates an object observed.

5. 4) Crank and Lever at 90°: “F image” out is still vertical 7/13/20155Alex Delacroix Probe F Image in F Image out Periscope Collimator Lens Focusing Lens F at pupil on TT (TT Not Shown for view clarity) The “F Image in” orientation is fixed to simulates an object observed.