All Lomography cameras use Fujifilm Instax film. These come in three different formats – Instax Mini Film, Instax Square Film and Instax Wide Film.
Lomography Announces Instant Film Camera
Review: Lomography Lomo'Instant Square (Fujifilm Instax Square)
Midwest Photo Lomography Lomo'Instant Wide Camera Central Park Camera and Lenses
Lomography Lomo'Instant Review
4x5 Instant Photography with Lomography Graflok
Technical Specs Lomography Lomo'Instant Mini Black + Instax Mini Film DP - Foto Erhardt
Big News: the Lomo'Instant Square is Now a Multi-Format · Lomography
Lomography - Lomo'Instant Wide Camera - Black
Lomography Announces Big Price Cuts on Medium Format Film! - Casual Photophile