Fluorescent Attachment Two Bands (G, B), 100W Mercury Lamp Illumination This product is characterized with infinite optical system.Designed with advanced modular technology, the product adopts gemel rotary binocular observing drawtube, quadruple (or quintuplicate) home tumbling converter, push-in illuminator support, critical or Kohler illumination system.The DC voltage regulated power source assures high efficiency light source and reliable bi-directional electromagnetism security.This product can be equipped with many accessories to implement such functions as bright field, dark field, phase contrast, photography, fluorescence, biological polarization and television etc.Specifications Optional Accessories High-point Eyepiece WF10X-20mm(One Pair) Mechanical Tube Length - Siedentopf Binocular / Trinocular Head Inclined at 30° Viewing Head Interpupillary Range:55mm-75mm Diopter Adjustment Range: -5, Objective Infinity Achromatic: 4X, 10X, 40X(S), 100X(S, Oil) Infinity Plan Achromatic: 4X, 10X, 40X(S), 100X(S, Oil) Nosepiece Roller Bear Quadruple Nosepiece Focus Adjustment Coaxial Coarse and Fine Focus Adjustment with Tension Control Range:20mm, Division of Fine Focus Adjustment:0.002mm Stage Size:135mm-150mm, Mechanical Stage X-movement Range:76mmI=Y-movement Range:50mm Condenser Abbe NA=1.25 with Iris Diaphragm and Filter Holder Illumination 6V20W T-H Lamp with Adjustable Brightness High-Point Eyepiece WF15X/15mm Objective Infinity Plan-Achromatic 20X(S) Infinite Plan-Achromatic PH10X, PH20X(S), PH40X(S), Phase Contrast Set PH100X(S, Oil), Turret Annular, Phase Contrast Condenser, Centering Telescope, Green Filter Field Diaphragm Collector with Field Diaphragm Polarization Attachments Simple Polarization Set Darkfield Condenser NA=0.9(Dry);NA=1.3(Oil) Video Attachment Video Adapter(0.5X, 0.75X, 1X), Digital Camera Adapter Fluorescent Attachment Two Bands (G, B), 100W Mercury Lamp Illumination