Using Nadir Adapters with Nodal Ninja Mecha
Nadir adapters allow easy capture of the "nadir" in a spherical panorama which is a spot directly below the point of view usually obstructed by your tripod.
Nadir adapters are sophisticated but easy to use pieces of equipment with a turning mechanism that allows you to position your camera facing down along a side of your tripod. Then simply move your tripod slightly so the lens is pointed directly over the original point of view and you will have an unobstructed view of the nadir. This is much better than taking the down shot from a side because when you use a nadir adapter the reflections of the floor remain the same for the down shot. This is especially required when there is a complicated ground such as stairs or see-through glass, etc. On top of all that the nadir adapter allows you to take the down shot much quicker and it will also save time on a computer as the result will be easier to stitch.