https://evidentscientific.com/zh/products/optics-and-microscope-accessories/n1478200
50X Plan Achromat Oil-Immersion Objective with Iris. Numerical Aperture: 0.50 - 0.90, Working Distance: 0.2mm, RMS Threading, Field Number: 22.
oil immersion objectiveplanachromatirisevident
https://evidentscientific.com/zh/products/optics-and-microscope-accessories/n5229400
40X Achromat Dry Pre-Centered Phase Objective. Numerical Aperture: 0.55, Working Distance: 2.2mm, RMS Threading, Field Number: 22. For CKX53 microscopes....
achromatdryprecenteredphase
https://evidentscientific.com/ja/products/n1200600/n1200600
0.75X Plan Achromat Objective for SZX10/7. Working Distance: 116mm. Numerical Aperture: 0.075. Actual field of view 46.6mm to 4.7mm.
planachromatobjectiveevidentscientific