For enthusiasts who want to develop color and black-and-white film at home, a complete developing kit makes the process simpler and more consistent. This article highlights five top color film developing kits suitable for 135 and 120 film, plus essential accessories to streamline your darkroom workflow. Each kit includes reels, tanks, measuring tools, and timing devices designed to work with common film formats and popular tanks. The selections reflect a range of entry-level to more feature-rich options, helping you find a kit that fits your space and needs.
| Product | Brand | Key Feature | Format Compatibility |
|---|---|---|---|
| Darkroom Developing Equipment Kit Film Processing 120 135 35mm Color B&W Film | eTone | 2-roll spiral reels, 3 measurement cups, timer with 3 channels | 135, 120 |
| Darkroom Developing Equipment Kit Film Processing 120 135 35mm Color B&W Film Film Changing Bag Developing Tank | eTone | Changing bag, safelight, three measuring cups, 10x loupe | 135, 120 |
| eTone Darkroom Developing Equipment Kit Film Processing Dishes for 8×10″ 5×7″ 4×5″ Photo Color B&W Film | eTone | 3 trays, 1L chemical storage bottles, safelight | 8×10″, 5×7″, 4×5″ |
| Ultrafine Unicolor E-6 Film Rapid Developing Kit 1 Quart | Unicolor | All chemicals included for E-6 color slides | 1 Quart Kit |
| 135 35mm Color B&W Film Darkroom kit Processing Equipment Timer Clock Developing Tank Film Canister Opener Chemical Bottle | eTone | Comprehensive timer, multiple bottles, chlorine-free archival storage pages | 135, 35mm |
Introduction: This article reviews five color-focused film developing kits that support color and black-and-white processing, with attention to tank capacity, reel compatibility, and practical extras like safelights, film changers, and measuring tools. Each kit is evaluated for usability, durability, and how well it supports standard 135 and 120 formats. Whether you’re a hobbyist or an aspiring color-darkroom practitioner, these options offer a range of features to suit different spaces and budgets.
Darkroom Developing Equipment Kit: 120/135/35mm Color & B&W

This kit from eTone provides a complete setup for 135 and 120 film with two spiral reels and a 120/135 developing tank. It includes a timer clock with three independent channels, allowing simultaneous timing of development steps. The package also contains chemical bottles, a changing bag option, safety gloves, a film canister opener, measuring cups, a thermometer stirrer, and a loupe magnifier. The tank and reels are designed to fit most standard Paterson-style systems, offering compatibility with common development tanks in the market. The included accessories support both color and black-and-white processing workflows.
Darkroom Developing Kit With Changing Bag And Tank

This package emphasizes flexibility with a film changing bag and safelight, alongside a robust set of essentials: timer clock with multiple channels, chemical bottles, film clip, and measuring tools. The 120/135 developing tank comes with 2 spiral reels, enabling faster processing for two light-sensitive rolls at once. The product notes indicate compatibility with Paterson and other tanks, making it a versatile option for users who may upgrade or mix equipment. The included safelight reduces glare and eye strain during handling in low-light conditions.
eTone Dishes Kit For 8×10″ To 4×5″ Film

This 8×10, 5×7, and 4×5 film dishes kit focuses on print processing rather than tank development. It includes three trays and multiple chemical storage bottles along with a safelight, gloves, and a thermometer. The wide-mouth chemical bottles are suitable for handling developers, stop baths, and fixers, enabling orderly, spill-resistant workflows. While not a traditional kit for roll film development, it complements a home darkroom by addressing larger-format color and black-and-white workflows and offering ergonomic storage and handling options for chemicals.
Ultrafine Unicolor E-6 Film Rapid Developing Kit

This color-focused kit is designed specifically for E-6 processing, ideal for color slides and color-positive film. It includes all the chemicals necessary for a complete E-6 development cycle in a 1-quart kit, simplifying color processing for home labs. The kit emphasizes convenience and completeness, making it a strong option for users who primarily shoot color reversal film and want a compact, all-in-one solution that minimizes the need to source individual chemicals separately.
135 35mm Color B&W Film Darkroom Kit

This comprehensive kit covers both 135 and 35mm film with a timer, three chemical bottles, archival-grade storage pages, gloves, a film canister opener, a 120/135 developing tank with two spiral reels, multiple measuring cups, film clips, a thermometer stirrer, and a loupe magnifier. The developing tank accepts two rolls of 135/35mm at once or one roll of 120 film, depending on reel configuration. The included timer features three independent channels and supports HR/MIN/SEC timing, making it a practical, all-in-one solution for color and black-and-white processing in a compact home setup.
Buying Guide: Key Considerations For Your Color Film Developing Kit
- Format compatibility: Confirm whether the kit supports 135 and/or 120 films and whether the reels and tanks can process two rolls at once. If you shoot multiple formats, look for a system with flexible reel configurations.
- Tank and reel quality: Durable, unbreakable plastic tanks and smooth reels reduce the risk of jamming or scratches. Compatibility with Paterson and other popular tanks adds versatility.
- Timing accuracy: A multi-channel timer helps manage development times across different chemicals and processes, improving consistency in color and B&W results.
- Chemicals and accessories: Consider whether the kit provides essential bottles, measuring tools, safelight, gloves, and a changing bag. Some kits emphasize complete chemical sets for color processing like E-6, while others focus on general darkroom needs.
- Format-specific options: If you primarily shoot color reversal (slide) film, prioritize E-6 or color-specific kits. For B&W, ensure the kit accommodates appropriate developing steps and kits.
- Space and workflow: Larger trays and multiple components require more workspace. If space is limited, favor compact kits with essential accessories and stackable components.
- Ease of upgrade: Look for modular systems that let you add additional reels, trays, or bottles as your darkroom grows, minimizing the need for a full replacement kit later.
- Safety and handling: Safelights, rubber gloves, and proper ventilation are important for safe handling of chemicals. Some kits include safelights and optional changing bags to minimize exposure.
- Maintenance: Consider how easy it is to clean tanks and reels and whether the materials resist staining or chemical degradation over time.
These considerations help balance cost, versatility, and future-proofing. When choosing, align the kit with your preferred film formats, processing style (color vs. B&W), and available workspace to maximize efficiency and results.