Microscope Eyepiece - 12.5x Orthoscopic

$58.00
In stock
Only 1 left
SKU
EP-O125X134
Type: OrthoscopicGrid: NoneFocal length: 20mmLinear field of view: 16mmOrthoscopic eyepieces are used with achromatic objectives of small and medium power, and with planachromatic objectives of small power.Does anybody know what means '1-3-4'?...