Sample Holders › ADAPTER-CS Image 1 of 1 ADAPTER-CS €100.00 Allows to transform a Sample Holder for 75 mm long microscope slide into a sample holder for coverslip. Aperture: Select Aperture 20mm clear anodized (standard) 20mm black anodized (special) 15mm black anodized (special) Quantity: Add To Cart Added! Allows to transform a Sample Holder for 75 mm long microscope slide into a sample holder for coverslip.