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. Occasionally production times run a bit longer, especially before or after holidays.A deeper dive into CineStill Simplified Cs2 chemistry: ECN-2 + CINESTILL = ? - EMULSIVE Close Search for: We are located in Southern California, so mail takes 2-5 days to reach us from almost anywhere in the country. Most film developing orders are shipped back to you within 3-7 business days after they enter production. The Darkroom film lab has been providing High-Quality C-41 film developing for over 40 years. We color, contrast, and density adjust each and every frame or you have the option of no corrections. We process 35mm, 120, 220, disposable cameras, 110, 126, and many other types of films. It’s not necessary for the photographer to know this code, but it tells the lab how to process the film – what chemicals to use, what temperatures, and what timing. The orange base is compensated for in the formulation of color print materials.Ĭ-41 was introduced by Kodak in 1972 and is known as CN-16 by Fuji, CNK-4 by Konica, and AP-70 by AGFA.Ĭ-41, E-6 (positive color slide film), and K-14 are designations created by film manufacturers to define different types of film and the developing process. When viewed, the negatives will appear orange with the darkest spots of the image appearing light (negative). C-41 film is the most common color-negative film and what most people associate with film photography. The Darkroom specializes in all types of color film (C-41) developing.

Kodak c41