{"title":"B\u0026W FILM","description":"","products":[{"product_id":"shanghai-gp3-100-120","title":"Shanghai GP3 100 Black and White Film 120","description":"\u003ch2\u003eShanghai GP3 100 Black \u0026amp; White Film – 120 Format\u003c\/h2\u003e\n\u003cp\u003eShanghai GP3 100 is a medium-speed panchromatic black and white negative film characterized by a controlled grain structure, making it well-suited for both enlarging and scanning. Its traditional silver-rich emulsion offers rich tonality with deep blacks and bright whites — a versatile choice for medium format portrait, landscape, and street photography.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eISO 100\/21° – fine grain, rich tonality, excellent sharpness\u003c\/li\u003e\n\u003cli\u003e120 medium format roll film\u003c\/li\u003e\n\u003cli\u003eCan be processed\/handled under deep red safelight\u003c\/li\u003e\n\u003cli\u003eStandard black and white chemistry (D-76, HC-110, Rodinal, etc.)\u003c\/li\u003e\n\u003cli\u003eAvailable in 1, 5, or 10 roll packs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFormat: 120\u003c\/li\u003e\n\u003cli\u003eISO: 100\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\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What is the grain structure of Shanghai GP3 100?\u003c\/strong\u003e\u003cbr\u003e\nA: Shanghai GP3 100 uses a traditional cubic-grain silver-rich emulsion. Grain is fine and well-controlled at box speed (ISO 100), making it suitable for large enlargements and high-resolution scanning. It is comparable in character to classic European emulsions rather than modern T-grain films.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Can Shanghai GP3 100 be pushed or pulled?\u003c\/strong\u003e\u003cbr\u003e\nA: Yes. GP3 100 pushes well to ISO 200 (+1 stop) with slightly extended development, and to ISO 400 (+2 stops) with further extension. Pulling to ISO 50 is also possible for reduced contrast in bright conditions. Exact times vary by developer — consult the Massive Dev Chart for specific combinations.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What developers work best with Shanghai GP3 100 120 film?\u003c\/strong\u003e\u003cbr\u003e\nA: GP3 100 is compatible with all standard B\u0026amp;W developers. Popular choices include D-76 (1:1) for balanced grain and tonality, HC-110 (Dilution B) for sharpness, Rodinal (1:50) for acutance and pronounced grain, and Ilfosol 3 for fine grain. It can also be stand-developed in Rodinal (1:100) for 60 minutes.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Is Shanghai GP3 100 still in production?\u003c\/strong\u003e\u003cbr\u003e\nA: Yes. Shanghai GP3 100 is actively manufactured by Shanghai Jiancheng Film (SHJCFILM) in China. Each order is fulfilled from the current production batch — we do not ship old or expired stock.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: How many exposures does a 120 roll of GP3 100 give?\u003c\/strong\u003e\u003cbr\u003e\nA: The number of exposures depends on your camera's format: 8 exposures at 6×9cm, 10 exposures at 6×7cm, 12 exposures at 6×6cm, and 16 exposures at 6×4.5cm.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: How should I store Shanghai GP3 100 film?\u003c\/strong\u003e\u003cbr\u003e\nA: Store in a cool, dry place away from direct light. Refrigeration (4–8°C) is recommended for long-term storage. Allow the film to reach room temperature before opening the packaging to avoid condensation. Avoid exposure to X-rays, strong magnetic fields, or high humidity.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Where is Shanghai GP3 100 film made?\u003c\/strong\u003e\u003cbr\u003e\nA: Shanghai GP3 100 is manufactured in Shanghai, China by Shanghai Jiancheng Film Co. SHJCFILM is the official manufacturer and direct seller of GP3 film worldwide.\u003c\/p\u003e","brand":"SHANGHAI GP3","offers":[{"title":"1 Rolls","offer_id":40243550126259,"sku":"JC-FM-BW-GP3-100-120-1","price":7.2,"currency_code":"USD","in_stock":true},{"title":"5 Rolls","offer_id":40243550159027,"sku":"JC-FM-BW-GP3-100-120-5","price":35.29,"currency_code":"USD","in_stock":true},{"title":"10 Rolls","offer_id":40243550191795,"sku":"JC-FM-BW-GP3-100-120-10","price":69.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0587\/2235\/3331\/products\/gp3100120.png?v=1634873433"},{"product_id":"shanghai-gp3-100-black-and-white-negative-film-35mm","title":"Shanghai GP3 100 Black and White Film 35mm","description":"\u003ch2\u003eShanghai GP3 100 Black \u0026amp; White Film – 35mm\u003c\/h2\u003e\u003cp\u003eA classic ISO 100 black and white negative film in 35mm format. The GP3 100 is a favourite among film photographers for its fine grain, high contrast, and excellent sharpness — equally at home in street photography, portraiture, and landscape work.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eISO 100\/21° – fine grain, high contrast, excellent sharpness\u003c\/li\u003e\n\u003cli\u003eCan be processed\/handled under deep red safelight\u003c\/li\u003e\n\u003cli\u003eStandard black and white chemistry (D-76, HC-110, Rodinal, etc.)\u003c\/li\u003e\n\u003cli\u003e36 exposures per roll\u003c\/li\u003e\n\u003cli\u003eAvailable in 1, 5, or 10 roll packs\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFormat: 35mm (135)\u003c\/li\u003e\n\u003cli\u003eISO: 100\u003c\/li\u003e\n\u003cli\u003eExposures: 36\u003c\/li\u003e\n\u003cli\u003eProcess: Standard B\u0026amp;W chemistry\u003c\/li\u003e\n\u003cli\u003eCountry of Origin: China\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eQ: What is Shanghai GP3 100 35mm film?\u003c\/strong\u003e\u003cbr\u003eA: Shanghai GP3 100 is a panchromatic ISO 100 black and white negative film manufactured by Shanghai Jiancheng Film (SHJCFILM) in China. It features a traditional cubic-grain silver-rich emulsion with fine grain, high contrast, and excellent sharpness — suitable for street, portrait, and landscape photography.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Can Shanghai GP3 100 35mm be pushed?\u003c\/strong\u003e\u003cbr\u003eA: Yes. GP3 100 pushes reliably to ISO 200 (+1 stop) and ISO 400 (+2 stops) with extended development. It can also be pulled to ISO 50 for reduced contrast in bright light. Refer to the Massive Dev Chart for specific developer times.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: What developers work best with GP3 100 35mm?\u003c\/strong\u003e\u003cbr\u003eA: GP3 100 works well with D-76 (1:1) for balanced grain and tonality, HC-110 (Dilution B) for sharpness and speed, Rodinal (1:50) for acutance and classic grain, and ID-11 for fine grain. Stand development in Rodinal (1:100, 60 min) is also popular.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: How many exposures does a roll of GP3 100 35mm give?\u003c\/strong\u003e\u003cbr\u003eA: Each roll gives 36 exposures at standard 35mm frame spacing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Is Shanghai GP3 100 a good film for beginners?\u003c\/strong\u003e\u003cbr\u003eA: Yes. GP3 100 is forgiving, affordable, and widely available. Its moderate ISO and fine grain make it easy to expose correctly in daylight, and it develops predictably in all standard B\u0026amp;W chemistries.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Is Shanghai GP3 100 still being made?\u003c\/strong\u003e\u003cbr\u003eA: Yes. GP3 100 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 100 35mm film?\u003c\/strong\u003e\u003cbr\u003eA: Store in a cool, dry place away from light. Refrigeration at 4–8°C is recommended for long-term storage. Allow film to reach room temperature before opening to avoid condensation.\u003c\/p\u003e","brand":"SHANGHAI GP3","offers":[{"title":"1 Rolls","offer_id":40275392889011,"sku":"JC-FM-BW-GP3-135-1","price":6.99,"currency_code":"USD","in_stock":true},{"title":"5 Rolls","offer_id":40275392921779,"sku":"JC-FM-BW-GP3-135-5","price":33.99,"currency_code":"USD","in_stock":false},{"title":"10 Rolls","offer_id":40275392954547,"sku":"JC-FM-BW-GP3-135-10","price":65.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0587\/2235\/3331\/products\/GP3100135.png?v=1631499530"},{"product_id":"shanghai-gp3-100-135-30-5m-bulk-roll","title":"Shanghai GP3 100 Black and White Film 30.5m Bulk Roll (35mm)","description":"\u003ch2\u003eShanghai GP3 100 Black \u0026amp; White Film – 30.5m Bulk Roll (35mm)\u003c\/h2\u003e\u003cp\u003eA 30.5m bulk roll of ISO 100 black and white film, perfect for high-volume shooters who want to load their own cassettes and save on cost. Each roll yields approximately 19–20 standard 35mm cassettes (34–36 exposures each).\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eISO 100 – fine grain, high contrast, excellent sharpness\u003c\/li\u003e\n\u003cli\u003e30.5m bulk roll – makes approx. 19–20 rolls of 35mm (34–36 exp each)\u003c\/li\u003e\n\u003cli\u003eCan be processed\/handled under deep red safelight\u003c\/li\u003e\n\u003cli\u003eStandard black and white chemistry (D-76, HC-110, Rodinal, etc.)\u003c\/li\u003e\n\u003cli\u003eFresh batch shipped with each order\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFormat: 35mm bulk roll\u003c\/li\u003e\n\u003cli\u003eLength: 30.5m\u003c\/li\u003e\n\u003cli\u003eISO: 100\u003c\/li\u003e\n\u003cli\u003eProcess: Standard B\u0026amp;W chemistry\u003c\/li\u003e\n\u003cli\u003eCountry of Origin: China\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eNote: Product images are for reference only. Fresh stock is dispatched with every order.\u003c\/em\u003e\u003c\/p\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eQ: What equipment do I need to load GP3 100 bulk roll film?\u003c\/strong\u003e\u003cbr\u003eA: You need a bulk film loader (such as the Lloyd or Watson loader), empty 35mm cassettes or reloadable canisters, and a darkroom or changing bag. The process must be done in complete darkness or a light-tight changing bag.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: How many rolls can I get from a 30.5m bulk roll?\u003c\/strong\u003e\u003cbr\u003eA: Approximately 19–20 cassettes of 34–36 exposures each, depending on how much leader you leave. Loading 24-exposure rolls will yield more cassettes per bulk roll.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Is the film fresh? What is the batch date?\u003c\/strong\u003e\u003cbr\u003eA: Yes. We dispatch fresh stock from the current production batch with every order. The batch date on the packaging reflects the most recent production run — we do not hold old stock.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Can I use GP3 100 bulk roll in any 35mm camera?\u003c\/strong\u003e\u003cbr\u003eA: Yes. Once loaded into a standard 35mm cassette, GP3 100 bulk film works in any 35mm camera. You will need to set the ISO manually if your camera does not read DX codes, or use DX code stickers (available separately).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: What developers work best with GP3 100 bulk roll?\u003c\/strong\u003e\u003cbr\u003eA: D-76 (1:1) for balanced grain and tonality, HC-110 (Dilution B) for sharpness, Rodinal (1:50) for acutance, and ID-11 for fine grain. Stand development in Rodinal (1:100, 60 min) is also popular for bulk-loaded film.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: How should I store the bulk roll?\u003c\/strong\u003e\u003cbr\u003eA: Keep the bulk roll in its original light-tight packaging. Store in a cool, dry place; refrigeration at 4–8°C is recommended for long-term storage. Once opened, store in a light-tight bulk loader and use within a reasonable timeframe.\u003c\/p\u003e","brand":"SHANGHAI GP3","offers":[{"title":"30.5M","offer_id":40282237698227,"sku":"JC-FM-BW-GP3-ROLL305","price":79.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0587\/2235\/3331\/files\/19051736739798_.pic.png?v=1736739889"},{"product_id":"shanghai-gp3-100-220","title":"Shanghai GP3 100 Black and White Film 220","description":"\u003ch2\u003eShanghai GP3 100 Black \u0026amp; White Film – 220 Format\u003c\/h2\u003e\u003cp\u003eAn ISO 100 black and white negative film in 220 format. The GP3 100 delivers fine grain, high contrast, and excellent sharpness — perfect for medium format portrait and landscape photography. This is the latest version with improved backing paper and emulsion for reliable performance.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eISO 100\/21° – fine grain, high contrast, excellent sharpness\u003c\/li\u003e\n\u003cli\u003e220 format – double the exposures of 120 per roll\u003c\/li\u003e\n\u003cli\u003eCan be processed\/handled under deep red safelight\u003c\/li\u003e\n\u003cli\u003eStandard black and white chemistry (D-76, HC-110, Rodinal, etc.)\u003c\/li\u003e\n\u003cli\u003eLatest version with improved backing paper and emulsion\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFormat: 220\u003c\/li\u003e\n\u003cli\u003eISO: 100\u003c\/li\u003e\n\u003cli\u003eProcess: Standard B\u0026amp;W chemistry\u003c\/li\u003e\n\u003cli\u003eCountry of Origin: China\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eQ: What is the difference between 120 and 220 film?\u003c\/strong\u003e\u003cbr\u003eA: 220 film is the same width as 120 but twice as long, giving double the exposures per roll. Unlike 120, it has no backing paper along the film length (only leader and trailer), so cameras must have a pressure plate designed for 220. Not all medium format cameras support 220 — check your camera manual before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: How many exposures does a roll of GP3 100 220 give?\u003c\/strong\u003e\u003cbr\u003eA: Approximately double that of 120: 16 exposures at 6x9cm, 20 at 6x7cm, 24 at 6x6cm, and 32 at 6x4.5cm.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Which cameras are compatible with 220 film?\u003c\/strong\u003e\u003cbr\u003eA: Cameras with a 220-compatible pressure plate, including Mamiya RB67 Pro-S\/SD, Mamiya RZ67, Pentax 67, Hasselblad 500 series (with 220 back), Bronica ETR\/SQ\/GS-1 (with 220 back), and Fuji GW690 series.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: What developers work best with GP3 100 220?\u003c\/strong\u003e\u003cbr\u003eA: The same developers as GP3 100 120: D-76 (1:1), HC-110 (Dilution B), Rodinal (1:50), and ID-11. Development times are identical to 120 — the format difference does not affect chemistry.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Is GP3 100 220 still in production?\u003c\/strong\u003e\u003cbr\u003eA: Yes. Shanghai GP3 100 220 is actively manufactured by Shanghai Jiancheng Film (SHJCFILM). It is one of the very few 220 format films still in production worldwide, making it a valuable option for photographers with 220-capable cameras.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: How should I store GP3 100 220 film?\u003c\/strong\u003e\u003cbr\u003eA: Store in a cool, dry place away from light. Refrigeration at 4–8°C is recommended for long-term storage. Allow film to reach room temperature before opening to avoid condensation.\u003c\/p\u003e","brand":"SHANGHAI GP3","offers":[{"title":"1 Rolls","offer_id":40282290880691,"sku":"JC-FM-BW-GP3-100-220-1","price":15.09,"currency_code":"USD","in_stock":true},{"title":"10 Rolls","offer_id":40831604457651,"sku":"JC-FM-BW-GP3-100-220-2","price":145.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0587\/2235\/3331\/products\/O1CN019rRLuK1CeagriKnzY__64330106.jpg?v=1632708535"},{"product_id":"shanghai-gp3-100-127","title":"Shanghai GP3 100 Black and White Film 127","description":"\u003ch2\u003eShanghai GP3 100 Black \u0026amp; White Film – 127 Format\u003c\/h2\u003e\u003cp\u003eAn ISO 100 black and white negative film in the rare 127 format. The GP3 100 delivers fine grain, high contrast, and excellent sharpness — ideal for portrait and landscape photography with vintage medium format cameras.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eISO 100\/21° – fine grain, high contrast, excellent sharpness\u003c\/li\u003e\n\u003cli\u003eNative 127 format – no respooling required\u003c\/li\u003e\n\u003cli\u003eCan be processed\/handled under deep red safelight\u003c\/li\u003e\n\u003cli\u003eStandard black and white chemistry (D-76, HC-110, Rodinal, etc.)\u003c\/li\u003e\n\u003cli\u003eCompatible cameras: Yashica 44, Rolleiflex Baby, Voïgtländer Bessa, and other 127-format cameras\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFormat: 127\u003c\/li\u003e\n\u003cli\u003eISO: 100\u003c\/li\u003e\n\u003cli\u003eProcess: Standard B\u0026amp;W chemistry\u003c\/li\u003e\n\u003cli\u003eCountry of Origin: China\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eQ: What cameras use 127 film?\u003c\/strong\u003e\u003cbr\u003eA: 127 film is used by a range of vintage cameras including the Yashica 44, Rolleiflex Baby (4x4), Voigtländer Bessa 46, Kodak Brownie Starlet, Primo Jr., and many other mid-20th century cameras. It produces a 4x4cm square negative.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: How many exposures does a roll of GP3 100 127 give?\u003c\/strong\u003e\u003cbr\u003eA: Typically 12 exposures at 4x4cm (standard 127 square format) or 16 exposures at 4x3cm, depending on the camera.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Is 127 film still being made?\u003c\/strong\u003e\u003cbr\u003eA: Yes, but options are very limited. Shanghai GP3 100 127 is one of the few 127 format films still in active production, making it an important option for photographers with 127-format cameras.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: What developers work best with GP3 100 127?\u003c\/strong\u003e\u003cbr\u003eA: GP3 100 127 uses the same emulsion as GP3 100 120 and 35mm. D-76 (1:1), HC-110 (Dilution B), Rodinal (1:50), and ID-11 all work well. Development times are the same as for GP3 100 in other formats.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Does GP3 100 127 require respooling?\u003c\/strong\u003e\u003cbr\u003eA: No. This is native 127 format film — it comes on a 127 spool and does not require any respooling before use.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: How should I store GP3 100 127 film?\u003c\/strong\u003e\u003cbr\u003eA: Store in a cool, dry place away from light. Refrigeration at 4–8°C is recommended for long-term storage. Allow film to reach room temperature before opening to avoid condensation.\u003c\/p\u003e","brand":"SHANGHAI GP3","offers":[{"title":"1 Rolls","offer_id":40282291208371,"sku":"JC-FM-BW-GP3-100-127-1","price":14.99,"currency_code":"USD","in_stock":true},{"title":"10 Rolls","offer_id":40842424844467,"sku":"JC-FM-BW-GP3-100-127-10","price":140.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0587\/2235\/3331\/products\/O1CN010XZf051CeahBgwOj2__64330106.png?v=1634869414"},{"product_id":"shanghai-gp3-100-black-and-white-negative-film-620","title":"Shanghai GP3 100 ISO Black and White 620 Film – Respooled for 620 Cameras","description":"\u003ch2\u003eShanghai GP3 100 Black and White 620 Film\u003c\/h2\u003e\u003cp\u003eShanghai GP3 100 in 620 format, respooled from original GP3 100 stock onto 620 spools. Bring your vintage 620 camera back to life with one of the most accessible black and white films available today. The GP3 100 emulsion delivers fine grain, high contrast, and excellent tonal range – ideal for portrait, landscape, and studio work.\u003c\/p\u003e\u003ch3\u003eFilm Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eISO 100\/21° panchromatic black and white negative film\u003c\/li\u003e\n\u003cli\u003eRespooled onto 620 format spools for vintage 620 cameras\u003c\/li\u003e\n\u003cli\u003eFine grain structure – ideal for enlarging and scanning\u003c\/li\u003e\n\u003cli\u003eHigh contrast with rich tonal range from deep blacks to bright whites\u003c\/li\u003e\n\u003cli\u003eCan be handled under deep red safelight\u003c\/li\u003e\n\u003cli\u003eCompatible with standard black and white chemistry\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCompatible Cameras\u003c\/h3\u003e\u003cp\u003eSuitable for all 620 format cameras including Kodak Brownie Hawkeye, Kodak Medalist, Argus 75, and other vintage 620 cameras.\u003c\/p\u003e\u003ch3\u003eAvailable Formats\u003c\/h3\u003e\u003cp\u003eAlso available in 35mm, 120, and sheet film formats – see our other listings.\u003c\/p\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eQ: What is 620 film and which cameras use it?\u003c\/strong\u003e\u003cbr\u003eA: 620 film is the same width as 120 film but uses a narrower, thinner spool. It was used in many Kodak cameras from the 1930s–1960s including the Kodak Brownie Hawkeye, Kodak Medalist, Kodak Monitor, Kodak Vigilant, and Argus 75. 620 spools are not interchangeable with 120 spools.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Is this film respooled or native 620?\u003c\/strong\u003e\u003cbr\u003eA: This film is respooled — Shanghai GP3 100 120 emulsion is transferred onto genuine 620 spools in a darkroom. The film itself is identical to GP3 100 120; only the spool is different.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Can I use 120 film in a 620 camera instead?\u003c\/strong\u003e\u003cbr\u003eA: In most cases, no. The 620 spool is narrower and thinner than 120, so 120 film will not fit in most 620 cameras without modification. Our respooled 620 film is the easiest solution.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: How many exposures does a roll of GP3 100 620 give?\u003c\/strong\u003e\u003cbr\u003eA: Typically 8 exposures at 6x9cm or 12 exposures at 6x6cm, depending on your camera.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: What developers work best with GP3 100 620?\u003c\/strong\u003e\u003cbr\u003eA: The same as GP3 100 120: D-76 (1:1), HC-110 (Dilution B), Rodinal (1:50), and ID-11. Development times are identical to GP3 100 120.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: How should I store GP3 100 620 film?\u003c\/strong\u003e\u003cbr\u003eA: Store in a cool, dry place away from light. Refrigeration at 4–8°C is recommended for long-term storage. Allow film to reach room temperature before opening to avoid condensation.\u003c\/p\u003e","brand":"SHANGHAI GP3","offers":[{"title":"1 Rolls","offer_id":40296916746419,"sku":"JC-FM-BW-GP3-620-1","price":12.99,"currency_code":"USD","in_stock":true},{"title":"10 Rolls","offer_id":40831604424883,"sku":"JC-FM-BW-GP3-620-2","price":99.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0587\/2235\/3331\/products\/620.png?v=1634869189"},{"product_id":"shanghai-gp3-400-black-and-white-negative-film-35mm","title":"Shanghai GP3 400 ISO Black and White 35mm Film – 36 Exposures","description":"\u003ch2\u003eShanghai GP3 400 ISO Black \u0026amp; White 35mm Film – 36 Exposures\u003c\/h2\u003e\u003cp\u003eShanghai GP3 400 is a high-speed panchromatic black and white negative film ideal for low-light shooting, street photography, and indoor work without flash. It delivers low grain, high contrast, and excellent sharpness at ISO 400 — a versatile workhorse for demanding shooting conditions.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eISO 400 – low grain, high contrast, excellent sharpness\u003c\/li\u003e\n\u003cli\u003eIdeal for low-light, street, and indoor photography\u003c\/li\u003e\n\u003cli\u003eCan be processed\/handled under deep red safelight\u003c\/li\u003e\n\u003cli\u003eStandard black and white chemistry (D-76, HC-110, Rodinal, etc.)\u003c\/li\u003e\n\u003cli\u003e36 exposures per roll\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFormat: 35mm (135)\u003c\/li\u003e\n\u003cli\u003eISO: 400\u003c\/li\u003e\n\u003cli\u003eExposures: 36\u003c\/li\u003e\n\u003cli\u003eProcess: Standard B\u0026amp;W chemistry\u003c\/li\u003e\n\u003cli\u003eCountry of Origin: China\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eQ: What is Shanghai GP3 400 black and white film?\u003c\/strong\u003e\u003cbr\u003eA: Shanghai GP3 400 is an ISO 400 panchromatic black and white negative film manufactured by Shanghai Jiancheng Film (SHJCFILM). It is designed for low-light and fast-action shooting, offering low grain, high contrast, and excellent sharpness at box speed.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: How does GP3 400 compare to GP3 100?\u003c\/strong\u003e\u003cbr\u003eA: GP3 400 has a higher ISO for shooting in lower light without flash. It has slightly more grain than GP3 100 but remains well-controlled for an ISO 400 film. GP3 100 is preferred for fine-grain work in good light; GP3 400 is the choice for versatility and low-light performance.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Can Shanghai GP3 400 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. It can also be pulled to ISO 200 for reduced contrast in bright conditions.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: What developers work best with GP3 400 35mm?\u003c\/strong\u003e\u003cbr\u003eA: D-76 (stock or 1:1) for balanced grain and tonality, HC-110 (Dilution B) for sharpness and speed, Rodinal (1:25 or 1:50) for acutance, and ID-11 for fine grain. Refer to the Massive Dev Chart for specific times.\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 35mm film?\u003c\/strong\u003e\u003cbr\u003eA: Store in a cool, dry place away from light. Refrigeration at 4–8°C is recommended for long-term storage. Allow film to reach room temperature before opening to avoid condensation.\u003c\/p\u003e","brand":"SHANGHAI GP3","offers":[{"title":"1 Rolls","offer_id":40831604588723,"sku":"JC-FM-BW-GP3-400-135-1","price":8.09,"currency_code":"USD","in_stock":true},{"title":"5 Rolls","offer_id":40831604621491,"sku":"JC-FM-BW-GP3-400-135-5","price":38.99,"currency_code":"USD","in_stock":true},{"title":"10 Rolls","offer_id":40831604654259,"sku":"JC-FM-BW-GP3-400-135-10","price":75.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0587\/2235\/3331\/files\/131791716778169_.pic.png?v=1716778254"},{"product_id":"shanghai-gp3-400-black-and-white-negative-film-30-5m-bulk-roll","title":"Shanghai GP3 400 ISO Black and White 35mm Film – 30.5M Bulk Roll","description":"\u003ch2\u003eShanghai GP3 400 Black and White 35mm Bulk Roll Film – 30.5M\u003c\/h2\u003e\n\u003cp\u003eThe Shanghai GP3 400 bulk roll gives you the freedom to roll your own 35mm film at a lower cost per frame. Each 30.5M roll yields approximately 19–20 rolls of 35mm film (34–36 exposures each), making it an ideal choice for high-volume shooters, darkroom enthusiasts, and film photographers who want to maximize their shooting without compromising on quality.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e The product image is for illustration purposes only and does not reflect the expiry date. Each order will be fulfilled with the current production batch.\u003c\/p\u003e\n\u003ch3\u003eFilm Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eISO 400 panchromatic black and white negative film\u003c\/li\u003e\n\u003cli\u003eLow grain structure suitable for enlarging and scanning\u003c\/li\u003e\n\u003cli\u003eHigh contrast with rich tonal range\u003c\/li\u003e\n\u003cli\u003eCan be handled under deep red safelight\u003c\/li\u003e\n\u003cli\u003eCompatible with standard black and white chemistry (D-76, HC-110, Rodinal, etc.)\u003c\/li\u003e\n\u003cli\u003e30.5M bulk roll – yields approx. 19–20 rolls of 35mm film\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWho Is This For?\u003c\/h3\u003e\n\u003cp\u003eWhether you bulk-load your own cassettes in the darkroom or run a film lab, the GP3 400 bulk roll offers a cost-effective way to keep shooting. The ISO 400 speed makes it versatile for indoor, low-light, and street photography.\u003c\/p\u003e","brand":"SHANGHAI GP3","offers":[{"title":"30.5M","offer_id":44338918129843,"sku":"JC-FM-BW-GP3-ROLL305","price":109.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0587\/2235\/3331\/files\/18861736739464_.pic.png?v=1736739523"}],"url":"https:\/\/shop.shjcfilm.com\/en-fr\/collections\/b-w-negative.oembed","provider":"SHANGHAI JIANCHENG FILM","version":"1.0","type":"link"}