[High-quality material] This objective lens is made of high-quality material and is durable and durable. Customers can use it at ease..
[4x color eraser] Aluminum alloy shell is preciseness machined, stable and durable for long time use. This is a 4x achromatic objective for biological microscopes..
[Without increasing the chromatic aberration] You can enhance the contrast by eliminating unnecessary reflections. Provides high quality observation without increasing chromatic aberration and makes the image sharper..
[Objective lens length: 30.5 mm] The length of the objective lens is 30.5 mm and easy to use..