Geoid Correction in Orthomapping

[SakiruOlarewajuOlagunju]

Hi everyone,

I’ve been working with ArcGIS Pro 3.3, primarily processing stereo imagery into DTMs. I prefer to use the EGM2008 geoid as my spatial reference, but the only geoid correction options I see are None and EGM96.

 I even installed the ArcGIS Coordinate System Data, thinking it might unlock EGM2008 (I am still getting familiar with all these), but no luck. Would it make sense to start with EGM96 and apply the appropriate correction later, or should I proceed with EGM2008 and just leave the correction as None?

Accuracy is quite important to my work, so Id appreciate any advice