Skip to main content
Home / Photo Printing Equipment / D67 Black-and-White Reversal Development Kit - Colormax Version for 135 Slide Film by THD Tuohai Family Darkroom Lab

Attributes

Brand -
Category Office Equipment, Supplies & Services / Photo Printing Equipment
Origin -
Film Format Compatibility 135 (35mm) Slide Film
Process Type Black-and-White Reversal (B&W Slide)
Kit Version Colormax Edition by THD Tuohai
Number of Rolls Develops up to 12 rolls (135-36)
Chemical State Liquid Concentrates
Development Time Approx. 45 minutes total process
Temperature Range 20°C - 24°C (68°F - 75°F)
Included Accessories Measuring cylinders, mixing bottles, instructions
Shelf Life (Unmixed) 24 months from manufacture date
Safety Warning For darkroom use only; avoid eye contact

6 reviews

A

Anonymous

Mar 24, 2026

Rating: 5/5

Exceeded expectations

As a beginner to darkroom work, I found this kit very forgiving. The reversal bleach step worked exactly as described. My slides look professional enough to scan and print large formats. Highly recommended.

A

Anonymous

Mar 18, 2026

Rating: 5/5

Best value for home slide processing

Sending film out for B&W slide processing is expensive and slow. This THD kit pays for itself after just three rolls. The blacks are deep, and the highlights retain nice detail without blowing out.

A

Anonymous

Mar 14, 2026

Rating: 4/5

Great kit, watch the temperature

The chemistry works well, but you really need to maintain consistent water bath temperatures. My first roll was a bit foggy because I let the temp drop during the second development stage. Second roll was perfect though!

A

Anonymous

Mar 12, 2026

Rating: 5/5

Perfect for experimental photography

I love projecting my own slides. This kit allows me to see my street photography projects in a completely new light. The chemical smell is manageable with good ventilation, and the waste disposal instructions were helpful.

A

Anonymous

Mar 10, 2026

Rating: 5/5

Fantastic results on Ilford XP2

I was nervous about trying B&W reversal for the first time, but this kit made it incredibly straightforward. The slides came out with amazing contrast and sharpness. The instructions were clear, and the Colormax formula seems very stable.

A

Anonymous

Mar 09, 2026

Rating: 4/5

Good consistency across batches

I've used two full kits now. The results are very consistent between batches. Only giving 4 stars because the measuring markings on the included cylinders are a bit faint and hard to read in low red-light conditions.

5 FAQ

Q: Does this kit include the final wetting agent?

A: Yes, the Colormax Version includes a small bottle of wetting agent in the accessory pack to prevent water spots during the final rinse. You do not need to purchase Photo-Flo or similar products separately.

Q: Is a special tank required, or will a standard Paterson tank work?

A: A standard plastic or stainless steel developing tank (like Paterson, Jobo, or Kinema) works perfectly with this kit. No specialized equipment is needed beyond what is typically used for standard B&W negative development.

Q: How long do the mixed chemicals last if I don't use them all at once?

A: Once mixed, the working solutions are best used within 24 hours for optimal results. While some developers can be stored for a few days in airtight, full bottles, we recommend mixing only what you need for your immediate session to ensure consistent reversal quality.

Q: What is the difference between this and the standard D67 kit?

A: The Colormax Version features an updated formula that provides slightly higher contrast and better highlight separation specifically optimized for modern emulsion films, whereas the standard version is tuned for older film stocks.

Q: Can this kit be used for 120 medium format film?

A: No, this specific D67 Colormax version is formulated and sized strictly for 135 (35mm) film tanks. Using it for 120 film may result in insufficient chemical volume for proper agitation and coverage.

Explore your interests

View More
All Categories
Best Seller (30)
New List (30)
Jingdezhen Pink Peony Flourishing Tea Canister Ceramic Lidded Loose Tea Storage Jar CYG-4578 One Jin Capacity Pu'er

Jingdezhen Pink Peony Flourishing Tea Canister Ceramic Lidded Loose Tea Storage Jar CYG-4578 One Jin Capacity Pu'er

$450.60

Round Sponge Brush Stamp with Mushroom Head – Printing Tool for Kindergarten Art and Kids' Crafts

Round Sponge Brush Stamp with Mushroom Head – Printing Tool for Kindergarten Art and Kids' Crafts

$0.27

Metal Wick Centering Tool with Wooden Base for DIY Scented Candle Making

Metal Wick Centering Tool with Wooden Base for DIY Scented Candle Making

$1.28

Custom Temporary Bank Account Opening Sign, Company Signboard, Stainless Steel Door Plate, PVC Simple Plaque, Acrylic Advertising Board

Custom Temporary Bank Account Opening Sign, Company Signboard, Stainless Steel Door Plate, PVC Simple Plaque, Acrylic Advertising Board

$15.20

Natural Raw Crystal Diffuser Stones 500g - Same Style as Certain Summer Brand, Flameless Indoor Decor (White, Green, Purple, Yellow, Black, Blue)

Natural Raw Crystal Diffuser Stones 500g - Same Style as Certain Summer Brand, Flameless Indoor Decor (White, Green, Purple, Yellow, Black, Blue)

$10.20

Iron Chain, Flower Pot Hanging Chain with Iron Rings, Black Suspension Chain for Bird Cages and Garden Planters

Iron Chain, Flower Pot Hanging Chain with Iron Rings, Black Suspension Chain for Bird Cages and Garden Planters

$0.10

Sheepskin Rattle with Brass Bells - Handmade Wooden Peach Wood Baby Toy for Chewing, Perfect for Children's Day

Sheepskin Rattle with Brass Bells - Handmade Wooden Peach Wood Baby Toy for Chewing, Perfect for Children's Day

$10.80

Commercial Square Insulated Warmer Cabinet with Constant Temperature Heating, Countertop Display Case for Roast Duck, Chicken, Fried Chicken, Smoked Goose, and BBQ Meat

Commercial Square Insulated Warmer Cabinet with Constant Temperature Heating, Countertop Display Case for Roast Duck, Chicken, Fried Chicken, Smoked Goose, and BBQ Meat

$338.00

PISEN Desktop Cable Organizer - Magnetic Data Cord Manager, Soft Silicone Fixed Wire Winder with Adhesive Clips, Mini Portable Hub

PISEN Desktop Cable Organizer - Magnetic Data Cord Manager, Soft Silicone Fixed Wire Winder with Adhesive Clips, Mini Portable Hub

$10.10

Handcrafted Peach Wood and Sheepskin Rattle with Brass Jingle Stick – Traditional Chewable Wooden Baby Toy

Handcrafted Peach Wood and Sheepskin Rattle with Brass Jingle Stick – Traditional Chewable Wooden Baby Toy

$74.00

ABB DC Drive DCS550-S02-0050-05-00-00 – Brand New, Genuine, Authorized Distributor

ABB DC Drive DCS550-S02-0050-05-00-00 – Brand New, Genuine, Authorized Distributor

$10,838.20

Waterproof Storage Bag for Clothes and Bathroom Use, Large-Capacity Drawstring Organizer for Men and Women, Outdoor Travel and Toiletry Pack

Waterproof Storage Bag for Clothes and Bathroom Use, Large-Capacity Drawstring Organizer for Men and Women, Outdoor Travel and Toiletry Pack

$39.90

Zhu Ma Household Entrance Steel Road Speed Bump, New U-Buffer Speed Limit Rubber Surface for Cars and Railways

Zhu Ma Household Entrance Steel Road Speed Bump, New U-Buffer Speed Limit Rubber Surface for Cars and Railways

$3,668.00

Huaboshi Thickened Resin Vegetable Planter Box – Rectangular Plastic Balcony Grow Container with Drainage Tray

Huaboshi Thickened Resin Vegetable Planter Box – Rectangular Plastic Balcony Grow Container with Drainage Tray

$45.99

New Data Cable Storage Bag Travel Digital Charger Cord Organizer Protective Visible Multi-Use Portable Case

New Data Cable Storage Bag Travel Digital Charger Cord Organizer Protective Visible Multi-Use Portable Case

$1.64

Press Wash Blade for KBA Printing Presses - Model KBA105 Ink Scraper, 1160*40mm

Press Wash Blade for KBA Printing Presses - Model KBA105 Ink Scraper, 1160*40mm

$40.50

Genuine Pirelli Run-Flat Car Tire P7 225 245 275 285/35 40 45 R18 19 20 21

Genuine Pirelli Run-Flat Car Tire P7 225 245 275 285/35 40 45 R18 19 20 21

$336.00

Chuangshidai 100XP Compact Desktop Fume Extractor for Soldering Irons - Rapid Smoke Purification

Chuangshidai 100XP Compact Desktop Fume Extractor for Soldering Irons - Rapid Smoke Purification

$696.00

Multi-Function Kitchen Sink Rack - Dish Drying Organizer for Bowls and Plates

Multi-Function Kitchen Sink Rack - Dish Drying Organizer for Bowls and Plates

$33.10

Water Brush Kids Water Painting Book Graffiti Special Pen Water Sketchbook Eco-Friendly Safe Tap Water Refillable Pen Set

Water Brush Kids Water Painting Book Graffiti Special Pen Water Sketchbook Eco-Friendly Safe Tap Water Refillable Pen Set

$2.16

No-Drill Over-Toilet Storage Rack for Bathroom Restroom Organizer

No-Drill Over-Toilet Storage Rack for Bathroom Restroom Organizer

$8.90

Jingdezhen Blue and White Porcelain Antique Brush Washer, Traditional Chinese Painting Calligraphy Brush Rinse Basin, Large and Small Water Pots

Jingdezhen Blue and White Porcelain Antique Brush Washer, Traditional Chinese Painting Calligraphy Brush Rinse Basin, Large and Small Water Pots

$16.90

Sketch Blending Stump Set for Art Students - Highlight Detail Shadow Tool Kit with Replacement Sponge Heads for Beginners

Sketch Blending Stump Set for Art Students - Highlight Detail Shadow Tool Kit with Replacement Sponge Heads for Beginners

$9.00

Changyiyou Outdoor Large-Capacity Wheeled Duffel Bag - Thickened Storage Backpack with Wheels for Camping Gear and Travel

Changyiyou Outdoor Large-Capacity Wheeled Duffel Bag - Thickened Storage Backpack with Wheels for Camping Gear and Travel

$109.00

Lightweight Waterproof Dry Bag for River Trekking and Rafting – Travel Storage for Clothes, Shoes, Socks with Moisture-Proof Buckle, Roll-Top Carry Design

Lightweight Waterproof Dry Bag for River Trekking and Rafting – Travel Storage for Clothes, Shoes, Socks with Moisture-Proof Buckle, Roll-Top Carry Design

$15.80

Tupai 3D Self-Adhesive Wall Stickers, Custom Acrylic Logo Advertising Letters for Signage, Background Walls, and Image Wall Decor

Tupai 3D Self-Adhesive Wall Stickers, Custom Acrylic Logo Advertising Letters for Signage, Background Walls, and Image Wall Decor

$8.50

Durable Replacement DEUBLIN 525/357 Water Inlet/Outlet Rotary Union for Curved Surface Printing and Cup Printing Machines

Durable Replacement DEUBLIN 525/357 Water Inlet/Outlet Rotary Union for Curved Surface Printing and Cup Printing Machines

$300.00

Detachable Large Water Barrel Rack for Mineral and Purified Water, Office Bottled Water Storage Stand with Wheels

Detachable Large Water Barrel Rack for Mineral and Purified Water, Office Bottled Water Storage Stand with Wheels

$136.00

Tea Packaging Gift Box - Empty Ceramic Tea Canister for Longjing, Green Tea, White Tea, Ripe Pu'er, Universal Packaging

Tea Packaging Gift Box - Empty Ceramic Tea Canister for Longjing, Green Tea, White Tea, Ripe Pu'er, Universal Packaging

$68.00

Ruke Floating Skimmer Machine for Sewage Treatment Plant Biochemical Tanks

Ruke Floating Skimmer Machine for Sewage Treatment Plant Biochemical Tanks

$12,064.00