12-29-2017, 02:21 PM
Mine is the SM-4NTPZ-144.
The microscope heads are all the same essentially (same internal lenses) with 2 different options available:
Tri-focal (w/third camera port) -or- not.
Simul-focal (Able to use both eyepieces and the camera port at the same time -or- not. The standard heads switch between one of the eyepieces and the camera port making it monocular if you want to use the camera port.
Or you can remove one of the eyepiece lenses and install a camera there on any of the scope heads.
The difference in magnification ranges/working distance comes from which eyepiece lenses and/or Barlow lenses you use on any of the models.
The microscope heads are all the same essentially (same internal lenses) with 2 different options available:
Tri-focal (w/third camera port) -or- not.
Simul-focal (Able to use both eyepieces and the camera port at the same time -or- not. The standard heads switch between one of the eyepieces and the camera port making it monocular if you want to use the camera port.
Or you can remove one of the eyepiece lenses and install a camera there on any of the scope heads.
The difference in magnification ranges/working distance comes from which eyepiece lenses and/or Barlow lenses you use on any of the models.
Willie