  While in situ experiments are gaining importance for the (mechanical)
assessment of metamaterials or materials with complex microstructures, imaging
conditions in such experiments are often challenging. The lab-based computed
tomography system Xradia 810 Ultra allows for the in situ (time lapsed)
mechanical testing of samples. However, the in situ loading setup from this
system limits the image acquisition angle to 140$^\circ$. For low contrast
polymeric materials, this limited acquisition angle leads to regions of low
information gain, thus preventing an accurate reconstruction of the data using
a filtered back projection algorithm. Here we demonstrate how the information
gain can be improved by selecting an appropriate position of the sample. A low
contrast polymeric tetrahedral microlattice sample and a specifically
structured sample, both scanned over 140$^\circ$ and 180$^\circ$, demonstrate
that the missing structural details in the 140$^\circ$ reconstruction are
limited to an angular wedge of about 20$^\circ$. Depending on the sample
geometry and structure, applying simple strategies for the in situ experiments
allows accurate reconstruction of the data. For the tetrahedral microlattice, a
simple rotation of the sample by 90$^\circ$ provides enough X-ray absorption
for an accurate reconstruction of the geometry.
