Zeiss Plan-Neofluar 40x 1.3 Oil Ph3
From BioDIP
https://www.micro-shop.zeiss.com/?s=141144816823554&l=en&p=us&f=o&a=v&m=a&id=420461-9910-000 Objective Specifications]
https://www.micro-shop.zeiss.com/?s=141144816823554&l=en&p=us&f=o&a=v&m=a&id=420461-9910-000 Objective Specifications]