The BA310E LED Phase package contains everything in the BA310E LED along with phase accessories including a turret condenser, phase objectives and phase centering telescope. The turret condenser allows the user to switch between brightfield, darkfield and different phase settings. Specifications Model BA310E Trinocular Observation tube Trinocular head, Siedentopf type, 360° swiveling Optical system Colour Corrected Infinity Optical System (CCIS®) Condenser Focusable and centerable Abbe condenser N.A. 0.90/1.25 with slot for contrast sliders Darkfield Optional slider/turret Diaphragm Iris diaphragm Diopter adjustment On both eyepieces, +/- 5 diopter Eyepieces Widefield N-WF10X/20mm with diopter adjustment Filter holder On top of the illuminator with fixing cap Fine focus precision 2µm Fluorescence Optional LED Focus mechanism Coaxial coarse and fine focusing system with tension adjustment Focusing stroke 20mm Illumination interchangeability Quartz halogen 6V/30W or LED 3W Inclination 30° inclined, 360° rotating Interpupillary distance 48-75mm Nosepiece Reversed quintuple Objective classification CCIS® EC Plan Achromatic, DIN Objective mounting thread W 4/5"x1/36" (RMS standard) Objectives 4X/0.10 (WD 15.9mm), 10X/0.25 (WD 17.4mm), 40X/0.65/S (WD 0.5mm), 100X/1.25/S-Oil (WD 0.15mm) Phase contrast Optional slider/turret Polarization Optional add-on Stage Mechanical stage with built-in low position rackless coaxial stage control with tension adjustment and sample holder Stage size 180x170mm Stand type Upright Standard contrast technique Brightfield Transmitted illumination Koehler Quartz halogen 6V/30W with intensity control Travel range X&Y 80x55mm Trinocular light split 100:0/20:80 or 100:0/0:100 Upper limit stop Upper limit stop preset but adjustable Transformer Internal Power supply 100-240V (CE) Accessories included Dust cover, power cord, Allen key, immersion oil (5ml), blue filter, spare fuse, cord hanger, thumb screw Dimensions LxWxH 400x220x400mm Weight Net 8.6kg