This LOMO PLAN-APO microscope objective lens is perfect for biological, bacteriological, and other types of research. Made in the USSR in 1977 with the serial number 77417, it is in good used condition and is ideal for biological, bacteriological, and other research purposes.
And has a numeric aperture of 0.65 with a cover glass thickness of 0.17+-0.01mm. The focal length is 3.9mm and it does not require immersion. With a work distance of 0.31mm and a parfocal height of 45mm (DIN), it offers precise and detailed images. Other features include being spring-loaded and having a mount thread of 0.8? This lens is in excellent condition with no damages or defects, ensuring clear and accurate results.