| Retarder Type | Specificities | Applications | Price |
| Industrial grade | • Spacer (few microns) over the aperture • Large aperture • Thin substrates • Phase distortions (spherical) • Low beam deviation | • Polarization manag. •Polarization vision | ** |
| Scientific grade | • Low phase distortions • No beam deviation • No spacers over the aperture • Aperture 10 mm • Thick substrates • Broadband AR coating | •Interferometry • Metrology • Use in an imaging plane • collimated laser beam | *** |
| Custom | • Larger apertures. • High switching speeds. • Large quantities/low price. • Zero phase shift | •Custom adapted cells for industrial applications • Specific scientific applications | * / **** |
