Polaroid and external lighting
The Polaroid I-2 is surprisingly versatile when paired with external lighting. I experimented with both continuous LED source (Bresser BR-RL 18 ring light) and a traditional Canon flash 540 EZ (indirect flash, connected with a 2.5 mm jack to my Polaroid I-2). I tested the ring light with the FujiFilm Instax Square as well. Below you can see my initial experiments with external light sources in, followed by the results gained from these tests. I've also included two photos shot with the SX-70 in combination with a ring light. For a detailed comparison between the I-2 and the SX-70 using a ring light, read my other post here.

Bresser Ring light & Canon 540 EZ Flash