The document compares using a DSLR camera versus an iPhone for video production. A DSLR has advantages like high quality video, long battery life, adjustable brightness and shutter speed settings. However, it is less compact than an iPhone. An iPhone is very compact and portable, with a built-in light and editing software, but has low storage capacity and image quality. The document discusses using a DSLR for main video capture and an iPhone for supplementary footage and audience feedback, due to the superior quality and storage of the DSLR.