![]() Top left: CineStill 800T with Cs41, Top right: CineStill 800T with Cs2, Bottom left: CineStill 800T with Cs41 vs Cs2 neutral density curves, Bottom right: Kodak’s target curves for 5219 match CineStill 800T with Cs2. Denser C-41 negatives could take up to 8x as long to print or scan, and time is money when printing 24 frames per second.Ībove: 21-step Sensitometric Characteristic Curves. ![]() Large scale ECN-2 processing was designed to produce consistent, thin negatives for quick printing on high contrast ECP-2 film with short exposure duration, to save time and money. ![]() Our new Cs2 formula is actually more advanced than either, utilizing chemical compounds and technology which didn’t exist before, resulting in an improved safer process.ĮCN-2 and C-41 processes were originally formulated back in the mid-1970s with the available technology of the day, to produce negatives for different purposes. In fact, the color developing agent used in ECN-2 (CD-3) is the predecessor to the advent of C-41 (CD-4). Why does Hollywood still use ECN-2? I heard that it was more advanced technology…ĮCN-2 chemistry is not any more advanced than C-41. If you are going to follow the ECN-2 Specifications for Processing KODAK Motion Picture Films you must use all of the proper equipment as well.Īfter years of research & development with motion picture chemistry, we believe we have formulated the only safe and consistent way to process stills with the same characteristics Hollywood expects, from the comfort of your home with the Cs2 “Cine Simplified” ECN 2-Bath Kit. This is why the ECN-2 process also specifies Solution Crossover Devices with multi-stage countercurrent washes between steps. Additionally, bleach carryover into the separate fixer causes the film to be mottled with smears of color. Safer B&W stop baths (e.g., citric or acetic acid) introduce byproducts that cause leuco-cyan dye problems in the red-sensitive emulsion layer (i.e., green images) and interfere with the bleaching step. Simply bypassing the hazardous color stop bath and going into the ECN-2 bleach will oxidize the color developer remaining in the emulsion, and cause severe staining to the film. Heat and any acid added to the ferricyanide bleach can liberate highly toxic cyanide gas, along with the forming of Prussian Blue deposits on film, reels and tanks. In addition to PPE, industrial exhaust vents are needed to carry away dangerous vapors and provide for the safety of the lab operator.Įmulsion acts like a sponge and carries color developer into the acidic color stop bath, generating poisonous hydrogen sulfide and sulfur dioxide fumes. Motion picture processing machines use caustic chemicals that you don’t want in your home, such as sodium hydroxide (lye) and sulfuric acid (battery acid), which can cause chemical burns from handling. Above right: Photo by The Brothers Wright on Kodak Portra 400 processed with Cs2 Cine Simplified. Proper ECN-2 processing requires special laboratory equipment and additional safety measures that can’t be attained at home.Ībove left: Photo by Henry J Keith on CineStill 800T processed with Cs2 Cine Simplified. C-41 processing was designed for darkrooms and mini-labs alike, for printing on RA-4 color paper.Īlthough the formulations have varied slightly between manufacturers (whether it be Kodak C-41, CineStill Cs41, Fuji CN-16, Konica CNK-4, AGFA AP-70, etc.), it is by far the most accessible color film process. The motion picture process involves a specific mechanical and chemical process for motion picture labs to produce long lengths of motion picture negatives, which print consistently on ECP-2 print film for projection. Let’s start with an important and often asked question: CineStill originally released Cs41 Color Simplified C-41 Kits. In this article, you will find data, examples and comparisons of CineStill and Kodak VISION3 motion picture films developed in CineStill’s existing Cs41Color Simplified C-41 kit, our brand new Cs2 Cine Simplified ECN-2 kit, and native ECN-2 chemistry. In the interests of definitively demystify the most common controversies which remain mere conjecture on the internet, we decided to perform another series of tests and share them here with you via EMULSIVE. Since we have access to all of the resources in the industry to perform the practical testing and produce the sensitometric data for every variation of the process, we recognize the pitfalls and reasons why many have had a bad experience trying to unlock motion picture technology. ![]() A deeper dive into CineStill Simplified Cs2 chemistry: ECN-2 + CINESTILL = ? - EMULSIVE Close Search for:
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