Spring Loaded Objective 40X Achromatic Microscope Objective With 20.2mm RMS Interface-High Brass Microscope Lens [BRIGHTER AND CLEARER LENS]: The lens coating provides high transmittance and refractive index for a brighter and clearer image. Our Omano 40X Achromatic Plan Spring objective is designed for the optimum image quality and resolution in compound s. These objectives deliver increased working distance and focused images across the entire field of view, comparable to research-grade optics, at highly competitive prices [PROTECTIVE DEVICE]: The spring device protects the lens from crushing specimens during observation. The coated lenses deliver brighter, clearer images with high transmittance and refractive index. Technical specs that matter: 40X magnification, 0.65 numerical aperture, works with 0.17mm cover glass thickness, about 160mm mechanical tube length, and a working distance of approximately 0.53mm 1., BRIGHTER AND CLEARER LENS: Lens after coating bring high transmittance, high refractive index, provide brighter and clearer image 2., PROTECTIVE DEVICE: Spring protection device can automatically rebound when the cover glass is encountered during observation, to protect the lens from crushing the specimen 3., DURABLE BRASS: Brass material with fine workmanship, resistant and not easy to fall, exquisite and durable, the Cover is chrome plated with accurate materials 4., UNIVERSAL SCREW INTERFACE: The screw interface size is the international standard size, which can be used by 95% of professional biological microscopes on the market, very practical 5., 40X MAGNIFICATION: This is a 40X high magnification objective, helps a lot in study, work or research, useful, helpful and convenient Spec: Item Type: Achromatic Microscope Objective Model: 40/0., 65 Material: Brass Use: Microscope accessories Interface Size: Approx., 20., 2mm / 0., 8in (international standard size) Magnification: 40X Numerical Hole Diameter: 0., 65mm Cover Glass Applicable Thickness: 0., 17mm Microscope Applicable Mechanical Tube Length: Approx., 160mm / 6., 3in Working Distance: Approx., 0., 53mm / 0., 02in Common Rail Distance: Approx., 195mm / 7., 68in Parfocal Distance: Approx., 45mm / 1., 77in Spring: Yes(automatic rebound) Package List: 1 x Lens 1 x Storage Box 40X 185 Biological Microscope Achromatic Objectives Lens Microscope [UNIVERSAL SCREW INTERFACE]: Fits 95% of professional biological microscopes with the international standard size.
