or
Invitrogen EVOS 2X Objective, achromat, LWD, 0.06NA/5.62WD, For Use With: EVOS M5000, EVOS M7000, EVOS FL Imaging System, EVOS XL Core Imaging System, EVOS FL Color Imaging System, EVOS FL Auto Imaging System, EVOS XL Imaging System, Magnification: 2X, Pr