At the end of the test, users were asked to switch between 2D and S3D visualization modes and compare the three designs: dim; frames; and dim+frames. The fourth S3D design (plain), which had the disparity effect only, did not have a counterpart in 2D. The rating was done on a scale 1-5. In the analyzing phase, we compared the differences in the given values for S3D/2D views given by every individual participant. The results indicated that the S3D visualization was mostly (but not unanimously) perceived equal or better in clarity and pleasantness, Figure 4. Although the dimming effect was not popular for S3D (Fig. 3), it was perceived as even worse in 2D. Adding frames around the shared photos weakened the impact of stereoscopy in both clarity and pleasantness when compared to 2D UI layouts. Here, it should be noticed that only the visualization, not the photo sharing concept itself was compared.