try:
    #Close aperture offset
    aperture_offset_width.moveAsync(APERTURE_OFFSET_W_MIN)
    aperture_offset_height.move(APERTURE_OFFSET_H_MIN)
    aperture_offset_width.waitReady(-1)
    
    
    #Move marker to the fit position
    val=st.take()
    fit_pos = val["x_fit_mean"], val["y_fit_mean"]
    x_axis, y_axis = val["x_axis"], val["y_axis"]
    fit_pos_px_x = int(fit_pos[0] / cam_server.config.spatialCalScaleX  - cam_server.config.spatialCalOffsetX)
    fit_pos_px_y = int(fit_pos[1] / cam_server.config.spatialCalScaleY  - cam_server.config.spatialCalOffsetY)
    fit_pos_px = [fit_pos_px_x, fit_pos_px_y]
    
    print fit_pos_px
    
    #marker_pos_px = cam_server.getInstanceConfigValue("Marker")
    #marker_pos_x = (marker_pos_px[0] + cam_server.config.spatialCalOffsetX) * cam_server.config.spatialCalScaleX 
    #marker_pos_y = (marker_pos_px[1] + cam_server.config.spatialCalOffsetY) * cam_server.config.spatialCalScaleY 
    #marker_pos = [marker_pos_x, marker_pos_y]
    #print marker_pos_px
    
    cam_server.setInstanceConfigValue("Marker", fit_pos_px)
    marker_pos_px = fit_pos_px

    marker_pos_x = (marker_pos_px[0] + cam_server.config.spatialCalOffsetX) * cam_server.config.spatialCalScaleX 
    marker_pos_y = (marker_pos_px[1] + cam_server.config.spatialCalOffsetY) * cam_server.config.spatialCalScaleY 
    marker_pos = [marker_pos_x, marker_pos_y]

    
    

finally:
    #Open aperture offset
    aperture_offset_width.moveAsync(APERTURE_OFFSET_W_DEFAULT)
    aperture_offset_height.move(APERTURE_OFFSET_H_DEFAULT)    
    aperture_offset_width.waitReady(-1)
    time.sleep(0.5)