How can I characterize lateral features?

Most surface texture parameters are related to heights. But in some applications lateral features and their spacing are as (if not more) important.

What is the Sdr parameter and when can it be used?

Have you ever heard of the Sdr parameter? What if it turned out to be the ideal indicator for characterizing the functionality of your surface data?

SEM image 3D reconstruction: what accuracy can I expect?

Discover how to set up appropriate experimental conditions before imaging a sample to be used with the Mountains® SEM 3D reconstruction tool

Does it make sense to compare Ra and Sa values?

Are you measuring surface roughness over an area? Ever wondered whether it is OK (or not) to compare values calculated (Sa, Sq, Sz etc.) with profile surface texture specifications (Ra, Rq, Rz etc.)? François Blateyron, Digital Surf's ISO surface metrology expert, sheds light on this issue which can easily cause confusion.

The delicate art of applying filters to a surface in order to prepare it for analysis

Do I need to use an S-Filter on a surface the same way a λs filter may be used on a profile? Digital Surf's ISO expert François Blateyron sheds light on an important aspect of surface metrology.