AmScope IN400TB Long Working-Distance Inverted Trinocular Microscope, 40x-1200x, WH10x and WH20x Super-Widefield Eyepieces, Brightfield and Phase-Contrast Objectives, 30W Halogen Illumination, 0.3 NA Abbe Condenser, Plain Stage, 90 to 240V

The AmScope IN400TB inverted trinocular compound microscope has interchangeable pairs of 10x22mm and 20x10mm high-eyepoint super-widefield eyepieces, an under-mounted quadruple nosepiece, eight DIN long working-distance infinity plan objectives, top-mounted Brightfield 30W halogen illumination, a 0.3 NA Abbe condenser with iris diaphragm, and a plain stage with a stage stop to protect slides and objectives from damage. The microscope has a color-corrected infinity optical system (CCIS) that provides color correction and improved focus of the intermediate image across the entire focal plane. The trinocular head has a Siedentopf binocular mount with 50 to 75mm interpupillary adjustment and a fixed 45-degree vertical inclination to reduce eye and neck strain. A Siedentopf binocular head enables the viewer to change the interpupillary distance without changing the tube length, eliminating the need to refocus the image. Anti-mold coatings protect the microscope in high-humidity environments. The microscope includes interchangeable pairs of high-eyepoint super-widefield WH10x22mm plan and WH20x10mm eyepieces. The WH10x22mm plan eyepieces provide improved focus over the entire field of view (FOV). High-eyepoint eyepieces ease viewing for viewers who wear glasses. Dioptric adjustment on both eyepieces accommodates individual eye-strength differences. The vertical trinocular port accepts a 23mm or C-Mount camera (camera sold separately). The under-mounted quadruple nosepiece accepts up to four 20mm objectives at a time. The microscope includes five Brightfield long working-distance infinity plan objectives (4x, 10x, 20x, 40x, and 60x) and three phase-contrast long working-distance infinity plan objectives (10x, 20x, and 40x). Long working-distance plan objectives provide improved focus over the entire range of the viewing field and a longer working distance that is required when viewing specimens in dishes and large containers. Phase-contrast provides high contrast and visibility without the use of stains, allowing specimens to be observed in their natural state without being killed or fixed. An inverted microscope has its light source above the stage pointing downward and the objectives and turret below the stage pointing upward. It is most often used for observing organisms in a large container, such as a well plate or petri dish. It can also be used when specimens require manipulation, or in metallurgical applications. Brightfield and phase-contrast illumination is mounted above the stage and has transmitted 30W halogen illumination. Brightfield (BF) illumination allows the specimen to absorb light, resulting in a dark image on a light background. The phase-contrast element aligns the light source with the phase-contrast objectives to optimize high contrast and visibility without the use of stains. Halogen illumination provides bright light in a concentrated path, and a rheostat controls the amount of light emanating from the lamp. The objectives are mounted on a turret to ease magnification changes. The movable 0.3 NA Abbe condenser can be adjusted to control the distance of the light from the stage, and the iris diaphragm has an opening that focuses and controls the amount of light illuminating the specimen from fully open to fully closed. The oversize stage is 6.3 x 10 inches (160 x 250mm) (W x D, where W is width, the horizontal distance from left to right; D is depth, the horizontal distance from front to back). Nested coaxial coarse and fine focus has tension-adjustable coarse focusing and an adjustable lock ring stopper that limits stage range to protect slides and objectives from damage. All-metal mechanical parts, solid-metal frame construction, and a stain-resistant enamel finish provide durability.SpecificationsHeadSiedentopf trinocularMagnification range40x-1200xTrinocular port23mm or C-MountEyepieces (30mm)WH10x22mm plan and WH20x10mmObjectives, Brightfield (20mm)4x, 10x, 20x, 40x, and 60x DIN long working-distance infinity plan objectivesObjectives, Phase-contrast (20mm)10x, 20x, 40x DIN long working-distance infinity plan objectivesStageOversize, with removable stage plateCondenserMovable 0.3 NA Abbe with iris diaphragmLight sourceHalogen with rheostat, 12V/30WIllumination typeBrightfield, phase-contrastPower90V to 240V, GS and CE-certifiedMicroscopes are instruments used to enhance the resolution of an object or image. Types include compound, stereo, or digital. Compound microscopes use a compound optical system with an objective lens and an eyepiece. Stereo microscopes show object depth in a three-dimensional image. Digital microscopes are used to display an image on a monitor, rather than looking through a lens. Microscopes 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. Microscopes 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. Microscopes are widely used in education, lab research, biology, metallurgy, engineering, chemistry, manufacturing, and in the medical, forensic science, and veterinary industries.United Scope manufactures microscopy equipment and accessories under the brand name AmScope. The company, founded in 1996, is headquartered in Irvine, CA.What's in the Box?AmScope IN400TB microscopeWH10x22mm plan eyepieces, 30mm, one pairWH20x10mm eyepieces, 30mm, one pair4x DIN long working-distance infinity plan objective, 20mm10x DIN long working-distance infinity plan objective, 20mm20x DIN long working-distance infinity plan objective, 20mm40x DIN long working-distance infinity plan objective, 20mm60x DIN long working-distance infinity plan objective, 20mm10xPH DIN long working-distance infinity plan phase-contrast objective, 20mm20xPH DIN long working-distance infinity plan phase-contrast objective, 20mm40xPH DIN long working-distance infinity plan phase-contrast objective, 20mmColor filtersReflected illuminations system with top light housing and electrical cordEpiscopic light box and tubePower cordDust coverInstructions

• Inverted compound microscope for observation of biological cultures or specimens within well plates, petri dishes, or vials that require a longer working distance
• Trinocular head with Siedentopf binocular mount, pairs of 10x and 20x high-eyepoint super-widefield eyepieces, 50 to 75mm interpupillary adjustment, and fixed 45-degree vertical inclination; vertical port accepts C-Mount or 23mm camera (sold separately)
• Color-corrected infinity optical system (CCIS) with under-mounted quadruple nosepiece, five long working-distance infinity plan objectives that provide a longer working distance and improved focus over the entire viewing field, and three long working-distance phase-contrast objectives
• Upper-mounted rheostat-controlled 30W halogen illumination and movable 0.3 NA Abbe condenser for clear examination and light control
• Oversize stage with tension-adjustable coaxial coarse and fine focus