About the PhotoTrack

ASI’s PhotoTrack solves the problem of tracking a moving specimen. Combined with ASI’s closed loop DC servo motor XY stages, PhotoTrack allows you to keep your free-moving samples in your field of- view (FOV) no matter where they want to go. PhotoTrack uses a low-light-level rapid position sensing quadrant PMT sensor to monitor a right reference spot on the target. It then commands the XY stage to maintain that spot in the center of a microscope’s field-of-view.

The PhotoTrack can be used on any regular microscope or on our RAMM System.

More Info

PhotoTrack Applications
  • Cell behavior studies
  • Static alignment to fluorescent fiducials
  • Optical recording of neurons in moving animals
  • Using high-power objectives to track labeled samples from organelles to organisms
PhotoTrack Specifications
Sensor Mount Parfocal C-Mount
Sensor Controls Manual Gain, On/Off, Iris, Overload Reset
Beam Splitter Ratio 20/80, 10/90, or Dichroic
PMT Type Hamamatsu 4-channel XY quadrant
PMT Protection High voltage shutdown on overload
PMT Usable Dynamic Range > 60 dB
Servo Loop Time 3 milliseconds
Read Time 2 milliseconds
Overall Response Time < 25 milliseconds
Sensor Dimensions H x W x D, not counting plug) 74 x 94 x 79 millimeters / 2.9 x 3.7 x 3.1 inches
Controller for PhotoTrack Sensor Integrated with specially-configured ASI MS-2000 controllers
PhotoTrack Datasheets

PhotoTrack Datasheet
PhotoTrack Manual