Even though the photography is a visual medium, visually impaired people use their smartphone cameras to take photos. We present a smartphone application, which helps visually impaired people to properly aim while taking portrait photographs. We have implemented an aiming assistance algorithm for two compositions (central, golden-ratio) and two feedback modalities (voice, vibration). In a study with 12 blindfolded participants we compared four combinations (composition × feedback modality) in aiming time, interaction, completion time, aesthetic quality of photos, and comfort of use. The results show that the combination of golden ratio composition with voice feedback produced the best aiming time (5.53 seconds) and completion time (8.33 seconds), the best aesthetic quality of photos, and was perceived as most comfortable. The interaction time of double click was 2.92 seconds on average and there was no significant difference between the four combinations.