Parallel optics series using objectives model:
0.5X achromatic objective PS-W0.5, working distance 186mm,
0.7X achromatic objective PS-W0.7, working distance 135mm,
1X plane achromatic none aberrance objective PS-WP1.0, working distance 91mm,
1.5X achromatic objective PS-W1.5, working distance 40mm.