Features: 1. Aluminum Alloy shell is precision machined, stable and durable for long time use. 2. This is a 40X achromatic objective lens for biological microscope. 3. It can eliminate unwanted reflections and increase contrast. 4. Offers high quality observation without additional chromatic aberration, make image more clear. 5. The Length of the objective lens is 37.8mm, easy to use. Specification: Item Type: Achromatic Objectives Lens Material: Aluminum Alloy + Optical Lens Color: As Pictures Show Magnification: 40X Tube Length: 160mm 6.3inch Conjugate Distance: 185 Coverglass Thickness: 0.17mm Objective Lens Length: 37.8mm Mounting Size: 20mm(Standard RMS Thread) Item Size: 5 * 5 * 5cm 2.0 * 2.0 * 2.0inch Package Weight: Approx. 62g Package List: 1 * Achromatic Objectives Lens Aluminum Alloy shell is precision machined, stable and durable for long time use This is a 40X achromatic objective lens for biological microscope It can eliminate unwanted reflections and increase contrast Offers high quality observation without additional chromatic aberration, make image more clear The Length of the objective lens is 37.8mm, easy to use
