• Trinocular compound micro provides high magnification for biological use and educational applications.
• Trinocular viewing head with vertical camera and Siedentopf binocular with pairs of 10x super-widefield and 20x super-widefield eyepieces with 55 to 75mm interpupillary adjustment, fixed 30-degree vertical inclination to reduce eye and neck strain, and 360-degree rotation capability to provide a more comprehensive view and enable sharing.
• Reverse-ed nosepiece with 4x, 10x, 40xS (spring), and 100xS (spring, oil) DIN infinity plan achromatic objectives that provide a longer working distance for improved focus when auxiliary components are utilized.
• Brightfield, halogen illumination with rheostat to control light intensity, and Kohler condenser with two iris diaphragms for precise focus, clear examination, and light control.
• Double-layer mechanical stage with 1mm stage divisions and stage stop; graduated coarse and fine focus with tension control to prevent stage drift.

The Am T690B-PL compound trinocular micro has a Siedentopf binocular with interchangeable pairs of 10x super-widefield and 20x super-widefield eyepieces, a reverse-ed nosepiece with four DIN infinity plan achromatic objectives, Brightfield halogen illumination, and a double-layer mechanical stage with a stage stop to protect slides and objectives from damage. The trinocular head has a vertical camera and a Siedentopf binocular with interchangeable pairs of WH10x and WH20x eyepieces, 55 to 75mm Siedentopf interpupillary adjustment, a fixed 30-degree vertical inclination to reduce eye and neck strain, and a 360-degree rotation capability to provide a more comprehensive view and enable sharing. Dioptric adjustment accommodates individual eye-strength differences. The vertical trinocular port accepts a camera with a 23mm or C- adapter (camera sold separately). The mechanical tube length is 6-5/16" (160mm). The reverse-ed revolving nosepiece has 4x, 10x, 40xS, and 100xS (oil) DIN infinity plan achromatic objectives that provide color correction, focus over the entire range of the viewing field, and a longer working distance for improved focus when auxiliary components are utilized. The 40xS objective is spring loaded to prevent slide damage when focusing. The 100xS spring-loaded oil-immersion objective uses oil between the specimen and the objective lens to provide increased resolution over a standard objective. A compound micro is used for inspection and dissection of specimens when two-dimensional images are desired. The micro has Brightfield (BF) illumination which allows the specimen to absorb light, resulting in a dark image on a light background. Halogen light source provides bright light in a concentrated path, and a Kohler condenser focuses and centers the light path using two iris diaphragms, providing optimum contrast and resolution. The graduated double-layer mechanical stage, with 1mm stage divisions, locks the slide into place and provides precise slide manipulation along the X- and Y-axis to allow coordinates to be recorded, enabling the viewer to return to a specific location on the slide. A stage stop prevents the stage or specimen from coming into contact with the objectives. The stage is 7.1 x 5.9 inches (180 x 150mm) and a traveling range of 3 x 2 inches (75 x 50mm). Graduated coaxial coarse and fine focus has a focusing range of 1-3/16" (30mm) and fine-focus divisions of 0.002mm (0.0000787") that enable measurements to be taken. Focus knob tension control prevents the stage from drifting out of focus. The cast-alloy enamel-coated body is durable and resistant to stains and corrosion. Specifications Head Compound trinocular Magnification 40X-2000X Trinocular port 23mm or C- Eyepieces (30mm) WH10x, WH20x Objectives (20mm) 4X, 10x, 40xS, 100xS (oil) infinity plan achromatic Stage Double-layer mechanical Lighting configuration Transmitted (lower) Condenser Kohler Diaphragm Iris Light source Halogen with rheostat, 6V/20W Illumination type Brightfield Power 85V-230V, auto-sw Micros are instruments used to enhance the resolution of an object or image. Types include compound, stereo, or digital. Compound micros use a compound optical system with an objective lens and an eyepiece. Stereo micros show object depth in a three-dimensional image. Digital micros are used to display an image on a monitor, rather than looking through a lens. Micros can have monocular (one), binocular (two), or trinocular (three) eyepieces, with varying magnification abilities. Magnification ability refers to the size of an image. Resolution, also known as resolvant power, refers to the clarity of the image. The interaction between field of view (FOV), numerical aperture (NA), and working distance (WD) determines resolution. Micros can control magnification through a fixed focus, or through a range of adjustments. They can also utilize LED, fluorescent, and mirror light sources to help control viewing capabilities. Micros are widely used in education, lab research, biology, metallurgy, engineering, chemistry, manufacturing, and in the medical, forensic science, and veterinary industries. United manufactures microscopy equipment and accessories under the brand name Am. The company, founded in 1996, is headquartered in Irvine, CA. What's in the Box? ------------------ * Am T690B-PL micro with double-layer mechanical stage * WH10x eyepieces, 30mm, one pair * WH20x eyepieces, 30mm, one pair * 4x DIN infinity plan achromatic objective, 20mm * 10x DIN infinity plan achromatic objective, 20mm * 40xS DIN infinity plan achromatic objective, 20mm * 100xS (oil) DIN infinity plan achromatic objective, 20mm * Immersion oil, one bottle * (3) Color filters * Spare halogen bulb * Spare fuse * Dust cover * Power cord * Instructions