The Nm1 can carry up to 3 objectives and is available in the following configurations:
Nm1 400 = x10 and x40 objectives fitted
Nm1 600 = x10, x40, and x60 objectives fitted
Nm1 1000 = x10, x40, and x100 objectives fittedObjective positions are numbered 1 to 3. Position 1 is x10, position 2 is x40 and position 3 is the expansion option which may be a blanking plug, a x60 or x100 objective depending on the Newton model. The magnification power is marked on the top of each objective using standard colour-coding conventions. Objectives are selected by rotating the magnification knob located in the centre of the underside of the microscope. This may be rotated in either direction and the selected objective should lightly click into position when the two red dots are aligned.
The Nm1 incorporates an electronic circuit which enables external power sources to drive the lighting system as an alternative to the internal battery pack. When using external power sources the automatic cut out is overridden and external power sources can also deliver a slightly brighter image if required. The supplied USB cable connects to the socket on the side of the microscope and can be driven from a PC/Lap top, or a USB mains plug adaptor (often accompanying smart phones).