... videoing workstation 3.B ultrasonic image dynamic playback Ophthalmic A/Bscan (CAS-2000B)Main configuration USB 2.0 ... Levels 256 Display Mode: B, B+B, B+A Image Storage: 10Frames Image Post Processing: Brightess, Comparison, Smooth, Sharp, Gray, ... Stretch, Equalize, etc( Ophthalmic A/B scan , ophthalmic equipments ...