In recent years, oblique photography has rapidly developed as an advanced technique which can easily acquire 3D panoramic data. It is a supplement to traditional aerial photography to provide a new source of information to the field of remote sensing. In this study, the GR6 Multi-Rotor UAS is used for oblique photogrammetry and is equipped with a gimbal, which was developed by our team, designed to carry cameras. The cameras are tested to carry out the procedures of oblique photography to generate their 3D urban landscape reconstruction and compare the results different oblique photos with traditional orthogonal photos. This is done to compare the discrepancies caused by the effect of the different directions of the angles in both the oblique photos and the vertical angle of the orthogonal photos from a single flight. At last, recommendations should be made.