The Nikon 50i is a high quality clinical grade microscope. This microscope is highly configurable and we can customize this to meet your needs. We offer this in a standard configuration as is with your choice of a binocular or ergo tilting binocular viewing head. The ergo head is tilting and telescoping with a photo port in the rear. This comes with a pair of 10x/22mm field of view eyepieces. It is equipped with Plan 4x, 10x, 40x, and 100x oil objectives. This microscope comes fully serviced with a warranty.   Nikon 50i Microscope Specifications Head: Binocular -or- ergo tilting telescoping binocular w/ photo port Eyepieces: CFI 10X/22mm Objectives: Plan 4x, 10x, 40x, 100x Oil Stage: Mechanical refocusing XY Stage  Condenser: Nikon Abbe 0.90 NA condenser with diaphragm Height adjustable with thumb screws for Kohler illumination Focus: Coaxial coarse/fine focus controls Illumination: 6v 30w Variable Halogen Warranty: 1 Year Mechanical, 6 Month Electrical