{"product_id":"shanghai-gp3-400-black-white-127-film","title":"Shanghai GP3 400 Black \u0026 White 127 Film – ISO 400","description":"\u003ch2\u003eShanghai GP3 400 Black \u0026amp; White Film – 127 Format\u003c\/h2\u003e\u003cp\u003eA high-speed ISO 400 panchromatic black and white negative film from Shanghai Jiancheng Film (SHJCFILM), respooled into 127 format for use in vintage Baby Rollei, Yashica 44, Brownie, and other 127 cameras. The GP3 400 delivers strong tonal contrast, good shadow detail, and excellent push processing capability — bringing a classic Chinese emulsion to the world of 127 photography.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eISO 400\/27° – high speed, versatile in low light and mixed lighting\u003c\/li\u003e\n\u003cli\u003e127 roll film – respooled for 127 cameras\u003c\/li\u003e\n\u003cli\u003ePronounced grain with strong tonal contrast and good shadow detail\u003c\/li\u003e\n\u003cli\u003eExcellent push processing capability – rated up to ISO 1600 or beyond\u003c\/li\u003e\n\u003cli\u003eCompatible with standard black and white chemistry (D-76, HC-110, Rodinal, ID-11, etc.)\u003c\/li\u003e\n\u003cli\u003eAvailable in 1 or 5 roll packs\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFormat: 127\u003c\/li\u003e\n\u003cli\u003eISO: 400\u003c\/li\u003e\n\u003cli\u003eProcess: Standard B\u0026amp;W chemistry\u003c\/li\u003e\n\u003cli\u003eHS Code: 370239\u003c\/li\u003e\n\u003cli\u003eCountry of Origin: China\u003c\/li\u003e\n\u003cli\u003eManufacturer: Shanghai Jiancheng Film (SHJCFILM)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eExposures per Roll\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e8 exposures at 4×6cm (6×4 format)\u003c\/li\u003e\n\u003cli\u003e12 exposures at 4×4cm (Baby Rollei, Yashica 44)\u003c\/li\u003e\n\u003cli\u003e16 exposures at 4×3cm (half-frame 127)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eQ: What is Shanghai GP3 400 127 film?\u003c\/strong\u003e\u003cbr\u003eA: Shanghai GP3 400 is a panchromatic ISO 400 black and white negative film manufactured by Shanghai Jiancheng Film (SHJCFILM) in China, respooled into 127 format. It is designed for use in vintage 127 cameras such as the Baby Rollei, Yashica 44, and various Brownie models.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Which cameras use 127 film?\u003c\/strong\u003e\u003cbr\u003eA: 127 film is used in a range of vintage cameras including the Rolleiflex Baby, Yashica 44, Voigtländer Brilliant, Kodak Brownie Starlet, and many other mid-20th century cameras. Check your camera's manual to confirm it takes 127 format.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Can Shanghai GP3 400 127 be pushed?\u003c\/strong\u003e\u003cbr\u003eA: Yes. GP3 400 pushes well to ISO 800 (+1 stop) and ISO 1600 (+2 stops) with extended development. Some photographers rate it as high as ISO 3200 with aggressive development. Consult the Massive Dev Chart for specific developer and time combinations.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: What developers work best with GP3 400 127?\u003c\/strong\u003e\u003cbr\u003eA: GP3 400 performs well with D-76 (stock or 1:1) for balanced results, HC-110 (Dilution B) for sharpness and speed, Rodinal (1:25 or 1:50) for pronounced grain and acutance, and ID-11 for finer grain at box speed.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Is Shanghai GP3 400 still in production?\u003c\/strong\u003e\u003cbr\u003eA: Yes. GP3 400 is actively manufactured by Shanghai Jiancheng Film. SHJCFILM is the official manufacturer and direct seller — every order ships fresh stock from the current production batch.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: How should I store GP3 400 127 film?\u003c\/strong\u003e\u003cbr\u003eA: Store in a cool, dry place away from light and heat. Refrigeration at 4–8°C is recommended for long-term storage. Allow film to reach room temperature before opening to avoid condensation on the emulsion.\u003c\/p\u003e","brand":"SHANGHAI GP3","offers":[{"title":"Default Title","offer_id":45869476184243,"sku":null,"price":19.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0587\/2235\/3331\/files\/ChatGPTImage2026_8_19_14_56_04_4.png?v=1787115383","url":"https:\/\/shop.shjcfilm.com\/products\/shanghai-gp3-400-black-white-127-film","provider":"SHANGHAI JIANCHENG FILM","version":"1.0","type":"link"}