Bristoline BR3079 Microscope Series Monocular Head; 10x, Semi-Plan 40xR*,100xR* Objectives; Abbe Condenser; 5 watt fluor. Illumination Featuring the latest advancements in optical mechanical design, Bristoline s BR3079 microscope series offers increased functionality and reliability for routine clinical and classroom work. Sturdy, precision built and ergonomically designed the BR3079 series incorporates high quality, coated optics and cool, bright fluorescent illumination to deliver high contrast, sharp images at a reasonable price.Eyepiece WF10x eyepiece with pointer, 18mm field of view. The eyepiece is locked-in to prevent classroom tampering.Head Monocular viewing body inclined 30 and rotatable 360 to maximize comfort, convenience and ease of sharing.Stand Ergonomically designed with comfortable low-position coaxial coarse and fine focusing controls and an adjustable tension control to maximize individual comfort and convenience. A built-in fixed focus stop allows for rapid image focusing while protecting specimens and objectives. Acid resistant, lustrous almond finish.Nosepiece Triple revolving ball-bearing nosepiece with positive click stops to ensure parcentration.Objectives DIN standard achromat objectives, parfocal, parcenter and color-coded.Stage 119 mm x 119 mm with locked-on stage clips, drilled and tapped to accept an optional mechanical stage.Substage Built-in N.A. 0.65 condenser with five aperture disc diaphragm or N.A. 1.25 Abbe condenser with iris diaphragm and filter holder.Focusing Coaxial coarse and fine focus mechanism facilitates smooth, precise focusing. A built-in slip clutch system and preset focus stop prevent damage to slides and objectives. Ergonomic hand rests below the focusing mechanism provide maximum comfort during extended viewing periods.Illumination 5 watt fluorescent in-base illuminator with collector lens and ON/OFF switch. Fluorescent bulb has a 10,000-hour rated life. Grounded 3-wire line cord w This item ships from a separate warehouse and may require extra time for delivery.