Omax - A191 Dry Dark Field Condenser Na 0.7-0.9 For Biological Compound Microscopes

Omax - A191 Dry Dark Field Condenser Na 0.7-0.9 For Biological Compound MicroscopesDry dark field condenser for compound microscopes. NA: 0.7-0.9. Mounting size: 37mm in diameter. 1-year warranty agai...