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

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.

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.

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.

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.

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.

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.

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