# item.guide
Side-by-Side Comparison Film Formats

110 Pocket Film Cartridge vs. 120 Roll Film (Medium Format / ISO 732)

Comparing 2 standards across 12 specifications. 12 key differences identified.

Comparing:
110 Pocket Film Cartridge
120 Roll Film (Medium Format / ISO 732)

110 Film (introduced by Kodak in 1972 for the Pocket Instamatic system) is a subminiature drop-in film cartridge containing a 16.0 mm wide single-perforated film strip with a 13 × 17 mm frame format (approx. 1/4 the area of 35mm). Featuring integral supply and take-up chambers with backing paper, it requires no rewinding.

View full 110 Pocket Film Cartridge spec sheet →

120 Film (standardized under ISO 732, introduced by Kodak in 1901 for the Brownie No. 2) is the universal medium format roll film standard, featuring a 61.5 mm wide unperforated film strip attached to continuous light-tight backing paper wound on a plastic/metal spool. Capturing multiple frame formats including 6×4.5 cm (16 exp), 6×6 cm (12 exp), 6×7 cm (10 exp), and 6×9 cm (8 exp).

View full 120 Roll Film (Medium Format / ISO 732) spec sheet →

Specification Comparison Table

12 Parameters
Parameter / Spec
Film Strip Width
16.0 mm (0.630 in) 61.5 ± 0.5 mm (2.42 in)
Frame Dimensions
13.0 × 17.0 mm (approx. 221 mm² image area) —
Perforation Format
One single registration perforation hole per frame along the bottom edge —
Cartridge Architecture
Two-chamber plastic cartridge with built-in take-up spool and continuous backing paper —
Exposures per Cartridge
12 or 24 exposures —
Notable Cameras
Pentax Auto 110 (often cited as the smallest interchangeable-lens SLR system ever made), Kodak Pocket Instamatic, Minolta 110 Zoom SLR, Lomography 110 —
Total Film Strip Length
— Approx. 820 mm (32.3 in) taped to backing paper
Spool Flange Diameter
— 25.2 mm (Keyed end drive slot for camera winding mechanisms)
6×4.5 cm Frame Yield (56 × 41.5 mm)
— 15 or 16 exposures per roll (Mamiya 645, Pentax 645, Bronica ETR)
6×6 cm Square Yield (56 × 56 mm)
— 12 exposures per roll (Hasselblad 500C/M, Rolleiflex TLR, Mamiya C330)
6×7 cm Ideal Format (56 × 70 mm)
— 10 exposures per roll (Mamiya RB67/RZ67, Pentax 67, Plaubel Makina 67)
6×9 cm Broad Format (56 × 84 mm)
— 8 exposures per roll (Fuji GW690 'Texas Leica', technical cameras)