Zeiss Plan Apochromat 40x 1.0 W DIC
From BioDIP
https://www.micro-shop.zeiss.com/?s=141894106942aae&l=en&p=us&f=o&a=v&m=s&id=421462-9900-000 Objective Specifications]
https://www.micro-shop.zeiss.com/?s=141894106942aae&l=en&p=us&f=o&a=v&m=s&id=421462-9900-000 Objective Specifications]