Shanghai · In production
Shanghai GP3 100
China's classic, low-cost old-school black-and-white.
| ISO / Speed | 100 |
| Type | Black & White |
| Process | B&W |
| Formats | 120 · 35mm · 4x5 |
| Grain | Moderate |
| Exposure latitude | Moderate |
| Color cast | Neutral，low saturation, moderate contrast |
| Brand | Shanghai |
Generated color character — not a sample photograph
Shanghai GP3 100 is a traditional ISO 100 black-and-white film from China, loved by budget shooters for its vintage, slightly soft rendering and its rare availability in 120 and even 4x5 at a very low price.
Character & look
GP3 has an older-generation, cubic-grain emulsion that gives a classic, slightly lower-tech look — gentle contrast, moderate grain and a nostalgic tonality that suits street and documentary work. Quality control is less consistent than premium Western films, and the base can be prone to curling, but the character and price keep it popular, especially for medium-format experimenters.
Best for
Budget medium formatStreetDocumentaryClassic vintage look
Shooting & development tips
Rate at or slightly below box speed and develop in a forgiving developer like D-76 or Rodinal. Handle gently and let rolls flatten before scanning, since the thin base can curl.
FAQ
Why is Shanghai GP3 so cheap?
It uses an older, simpler emulsion and is produced in China at low cost, making it one of the most affordable ways to shoot black-and-white 120 and 4x5.
Is GP3 good quality?
It has real vintage character and pleasant tones, but batch consistency and base flatness are less reliable than Ilford or Foma. Many shooters love it precisely for that lo-fi charm.