Skip to main content
Home / Photo Printing Equipment / Automatic Variable Speed Roll Processor Teacher Sheng Darkroom Water Bath Semi-Automatic Film Developing Machine Electric Film Developer

Attributes

Brand -
Category Office Equipment, Supplies & Services / Photo Printing Equipment
Origin -
Brand Teacher Sheng
Processing Type Semi-Automatic Roll Film
Speed Control Automatic Variable Speed
Lighting Requirement Daylight Operation (No Darkroom Needed)
Power Source Electric AC Adapter
Compatible Film Formats 35mm and 120 Medium Format
Tank Material Chemical-Resistant ABS Plastic
Agitation Method Motorized Inversion and Rotation
Temperature Control Integrated Water Bath Heating
Capacity Up to 4 Rolls Simultaneously

6 reviews

A

Anonymous

Mar 30, 2026

Rating: 5/5

Excellent for beginners and pros

I am new to film developing, and this machine made the process approachable. The instructions were clear, and the variable speed settings let me experiment with different developers easily.

A

Anonymous

Mar 29, 2026

Rating: 5/5

Game changer for home developing

I used to dread loading reels in the dark, but this machine eliminates that stress completely. The variable speed agitation ensures even development every time. Highly recommended for anyone looking to streamline their workflow.

A

Anonymous

Mar 22, 2026

Rating: 5/5

Consistent negatives every time

My negative density has never been more consistent. The automatic inversion mimics hand agitation perfectly but removes the human error factor. Build quality feels sturdy and professional.

A

Anonymous

Mar 21, 2026

Rating: 4/5

Solid investment for volume processing

If you develop more than three rolls a week, get this. It saves so much time. The only reason I didn't give five stars is that the power cord could be a bit longer, but that's a minor issue.

A

Anonymous

Mar 07, 2026

Rating: 4/5

Great results, slight learning curve

The images come out sharp and consistent. It took me two tries to get the chemical volumes right for the water bath, but once I figured it out, it's been smooth sailing. The electric motor is very quiet.

A

Anonymous

Mar 01, 2026

Rating: 5/5

Perfect for medium format

As a shooter of mostly 120 film, finding a reliable semi-automatic processor is rare. This handles the longer rolls without tangling. The no-darkroom feature is accurate; I set this up right on my kitchen counter.

5 FAQ

Q: Is the plastic tank resistant to harsh chemicals like bleach bypass solutions?

A: The tank is made from high-grade chemical-resistant ABS plastic suitable for standard black and white and C-41 color developers. However, we recommend rinsing immediately after use with aggressive bleaching agents to ensure longevity.

Q: What is the range of the variable speed agitation?

A: The motor offers adjustable speeds typically ranging from 10 to 60 RPM, allowing you to customize the agitation intensity based on the specific film stock and developer chemistry you are using.

Q: Does this machine require a completely dark room to load the film?

A: No, the Teacher Sheng processor is designed for daylight operation. You can load the film cassettes directly into the unit without needing a traditional darkroom or changing bag.

Q: Can I process 35mm and 120 film in the same batch?

A: Yes, the tank includes interchangeable reels that support both 35mm and 120 medium format films. You can mix formats in a single run as long as the total capacity is not exceeded.

Q: How do I maintain the water bath temperature?

A: The unit features an integrated heating element within the water bath jacket. You simply fill the outer chamber with water, set your desired temperature on the digital control panel, and the machine maintains it automatically.

Explore your interests

View More
All Categories
Best Seller (30)
New List (30)
Car Tire Stone Removal Hook - Portable Multi-function Tool for Cleaning Gravel from Tire Treads

Car Tire Stone Removal Hook - Portable Multi-function Tool for Cleaning Gravel from Tire Treads

$7.00

Imported TRANS Gearbox Eccentric Bearing 614 59 7187 616 0608 11-15 11 YSX

Imported TRANS Gearbox Eccentric Bearing 614 59 7187 616 0608 11-15 11 YSX

$183.00

Sichuan Rongxian Earthware Minfeng Wine Jar, Home Pottery with Porcelain Liner, 600-Jin Unglazed Sealed Fermentation Vessel for Homemade Liquor

Sichuan Rongxian Earthware Minfeng Wine Jar, Home Pottery with Porcelain Liner, 600-Jin Unglazed Sealed Fermentation Vessel for Homemade Liquor

$901.00

Garlic Drum Sorting Machine - Single-Clove Garlic Grading Separator and Onion Sizing Sorter - Factory Direct Sales

Garlic Drum Sorting Machine - Single-Clove Garlic Grading Separator and Onion Sizing Sorter - Factory Direct Sales

$38,080.00

Aizaofang Food-Grade Soft Silicone Handmade Soap Mold Korean Rectangular 3D Tree Shadow Silicone Mold

Aizaofang Food-Grade Soft Silicone Handmade Soap Mold Korean Rectangular 3D Tree Shadow Silicone Mold

$23.00

JMC Yusheng & Yuhu Parts – Crankshaft Position Sensor, Signal Sensor, Original Equipment

JMC Yusheng & Yuhu Parts – Crankshaft Position Sensor, Signal Sensor, Original Equipment

$95.00

[10% Off for 2 Items] Calligraphy Wool Felt Mat - Double-Sided Painted Practice Pad for Students, Bulk Wholesale, Includes Arm Rest and Four Treasures of the Study Set

[10% Off for 2 Items] Calligraphy Wool Felt Mat - Double-Sided Painted Practice Pad for Students, Bulk Wholesale, Includes Arm Rest and Four Treasures of the Study Set

$6.63

Leak-Proof Retainer Case with Double-Layer Filter for Braces, Aligners, and Dentures - Portable Cleaning and Soaking Box

Leak-Proof Retainer Case with Double-Layer Filter for Braces, Aligners, and Dentures - Portable Cleaning and Soaking Box

$22.50

Car Tire Stone Removal Hook Tool, Explosive Tire Prevention Gadget, Durable Zinc Alloy Tire Cleaning Hook for Automotive Care

Car Tire Stone Removal Hook Tool, Explosive Tire Prevention Gadget, Durable Zinc Alloy Tire Cleaning Hook for Automotive Care

$10.90

[Damai Micro-Needle Hair Transplant Patent] Micro-Needle Planting (500 Units) - Suitable for Temples and Hairline

[Damai Micro-Needle Hair Transplant Patent] Micro-Needle Planting (500 Units) - Suitable for Temples and Hairline

$4,500.00

Japan Original FEC Lifting Chain - Specialized for Electric Hoist, 6.3mm Diameter Carburized Lifting Chain

Japan Original FEC Lifting Chain - Specialized for Electric Hoist, 6.3mm Diameter Carburized Lifting Chain

$223.00

X-RAY Coating Thickness Gauge - Desktop Tianrui Professional Analyzer for Metal Electroplating Layers

X-RAY Coating Thickness Gauge - Desktop Tianrui Professional Analyzer for Metal Electroplating Layers

$9,589.60

Heavy Truck Tire Cleaning Strips - Wear-Resistant Mud Flaps and Inner Tube Skirts - Decorative Tire Tassels

Heavy Truck Tire Cleaning Strips - Wear-Resistant Mud Flaps and Inner Tube Skirts - Decorative Tire Tassels

$9.05

Mixue Bingcheng Tanned Snow King Blind Box Figure Girls Gift Birthday Cute Plush Keychain Holiday Present

Mixue Bingcheng Tanned Snow King Blind Box Figure Girls Gift Birthday Cute Plush Keychain Holiday Present

$21.01

Smart Battery Tester with Full Protection - Performance Detector for EV and Car Batteries

Smart Battery Tester with Full Protection - Performance Detector for EV and Car Batteries

$269.00

Schneider Leakage Switch IC65 Vigi C120H 2/4P D80/100/125A Leakage Circuit Breaker

Schneider Leakage Switch IC65 Vigi C120H 2/4P D80/100/125A Leakage Circuit Breaker

$1,347.75

Wenxin Tang Pumpkin-Shaped Ceramic Water Pot - Small Celadon Glaze Brush Washer for Chinese Calligraphy

Wenxin Tang Pumpkin-Shaped Ceramic Water Pot - Small Celadon Glaze Brush Washer for Chinese Calligraphy

$18.50

Dehua Mutton Fat White Porcelain Brush Washer - Minimalist Modern Ceramic Water Pot and Scholar's Desk Ornament

Dehua Mutton Fat White Porcelain Brush Washer - Minimalist Modern Ceramic Water Pot and Scholar's Desk Ornament

$39.70

Lifting Chain Slings, Four-Leg Chain Rigging with Hooks and Shackles, Manganese Steel Chains for Crane Hoisting

Lifting Chain Slings, Four-Leg Chain Rigging with Hooks and Shackles, Manganese Steel Chains for Crane Hoisting

$79.20

Taikang Bybo Dental Straumann ITI Dental Implant Metal Abutment TK

Taikang Bybo Dental Straumann ITI Dental Implant Metal Abutment TK

$8,330.00

Factory Supply Adjustable Radish Strip Cutter, Multi-Function Vegetable Slicer for Green Radishes

Factory Supply Adjustable Radish Strip Cutter, Multi-Function Vegetable Slicer for Green Radishes

$5,395.00

Magnetic Cable Organizer - Desktop Phone Charging Data Cord Management Stand and Car Mount Clip

Magnetic Cable Organizer - Desktop Phone Charging Data Cord Management Stand and Car Mount Clip

$13.45

Yuanhao Irregular Ticket-Style Watercolor Paper Stamp Blank Journal Sheet Postcard Creative Card Bookmark 300g Cotton Pulp Fine Texture Thickened Serrated Edge for Art Students Hand Drawing

Yuanhao Irregular Ticket-Style Watercolor Paper Stamp Blank Journal Sheet Postcard Creative Card Bookmark 300g Cotton Pulp Fine Texture Thickened Serrated Edge for Art Students Hand Drawing

$5.32

Residential & Commercial Entrance Nameplate Japanese Wabi-Sabi Style Sign Brass Stainless Steel Wall Light Customizable

Residential & Commercial Entrance Nameplate Japanese Wabi-Sabi Style Sign Brass Stainless Steel Wall Light Customizable

$328.00

Carton Packaging Machinery - New Model 2000 Semi-Auto Gluing Machine, Case Sealer, Pressure-Type

Carton Packaging Machinery - New Model 2000 Semi-Auto Gluing Machine, Case Sealer, Pressure-Type

$5,000.00

Shandong Manufacturer Household Waste Compactor - Horizontal Transfer Station Equipment for Communities

Shandong Manufacturer Household Waste Compactor - Horizontal Transfer Station Equipment for Communities

$44,160.00

460 Fast-Drying Adhesive for Shoes, Ceramics, Wood, Metal, and Plastic, No Whitening Effect

460 Fast-Drying Adhesive for Shoes, Ceramics, Wood, Metal, and Plastic, No Whitening Effect

$34.50

231 "Embroidered Plant Garden" Handmade Travel Watercolor Sketchbook Journal Baohong Rubens

231 "Embroidered Plant Garden" Handmade Travel Watercolor Sketchbook Journal Baohong Rubens

$49.00

Beginner Watercolor Painting Line Art Coloring Book: Geisha Theme, Japanese Style Fine Grain, Two-Pack Free Shipping

Beginner Watercolor Painting Line Art Coloring Book: Geisha Theme, Japanese Style Fine Grain, Two-Pack Free Shipping

$10.60

White Clay Tea Brewing Pot, Ceramic Jar, Japanese-style High-temperature Side-handle Teapot and Coffee Pot

White Clay Tea Brewing Pot, Ceramic Jar, Japanese-style High-temperature Side-handle Teapot and Coffee Pot

$92.00