Three magnifications: 100x, 250x, 400x
Three brightfield long distance objectives with 10x at 0.25 NA and 8.1 mm(good for working distance), 25x with o.40 NA and 4.8.mm (good for working distance), and 40x 0.60 NA with 3.3mm (good for working distance).
Three Phase Contrast Magnification (Nonfluorescence) in 100x, 250x, or 400x
Three Phase contrast objectives: 10x with 0.25 NA and 8.1 mm (good for working distance), 25x with 0.4 NA and 4.8 mm (good for working distance), and 40x with 0.60 NA with 3.3mm (good for working distance).
Epi-flourescence Microscopes' objectives are designed with 1.2 mm thickness with 10x eyepiece set included every time you buy a microscope.