Joel Griffiths learned several things about technology through creating a film project. He used a Pentax DSLR camera that allowed him to film in 1080p and gave professional quality footage. He also used Adobe Premier Pro editing software, which he found easy to learn and allowed him to create effects like time lapses. Additionally, he used a portable tripod that provided stability for different camera angles and movements. Overall, the technology allowed him to achieve high quality footage and develop his filmmaking skills.