The t490a's adjustable trinocular port creates a parfocal optical system by allowing the image system attached to the photo port and the image in the eyepieces to be in focus at the same time. Traditional microscopes on the market allow you to see through either the trinocular port or eyepieces, forcing you to switch between the port and eyepieces. Simultaneous viewing throuhg the photo port and eyepieces. NIdustry standard 23mm photo port and c-mount port. 30° inclined 360° swiveling compensation free trinocular head. Photo/video cpaability with adjustable 23mm photo mount for parfocal image system. Large 3-d double layer mechanical stage with stain resistant finish. Low-position coaxial stage movement control knobs. Coaxial coarse & fine focusing with ca knob tension control. Fully coated optical sytsem with high resolution. High quality professional grdae microscope. Perfect for clinics, vets, doctors, and students. Rack and pinino adjustment for condenser. Built-in halogen illumination system with variable intensity.
solid metal frame construction with stain resistant enmael finish. Maunfactured under iso 9001 quality control standards. Unbeatable low price guaranteed or teh difference back! Mechanical utbe length 6-5/16 (160mm). Head 360° swiveling compensation free trinocular head inclined at 30°. Achromatic objectives 4x, 10x, 40x (spring), 100x (spring, oil). Stage dimensiosn 5-1/2x 5-1/2 (140x140mm). The accessories below are compatible with the above microscope. They can boost your microscope wiht extra features! Accessories listed below are compatible with the above microscope. They can boost teh microscope's functions with extra features. Plesae click on the items you are interested in for more details. Q how do i select a microscope? Callers outside fo the usa please call 1-909-393-9488. Our warehouses are locaetd in southern california, usa. How long can i expect my items to be delivered? Express packages can be delivered overnight, second day or 3 days, depending on what you choose. Our commitment to answering your questions and solving your problems are second to none. We carry only amscope name brand instruments, guaranteeing our customers the highest standard of quality, responsibility, and dependability. We have a full line of products, more than 2,000 listings for amscope microscopes and accessories, to ensure that you will always be able to find what you are looking for. Rest assured that precisionworld and amscope will be here for many years to come to assist you in your microscope needs.