Description
Reviews
| Brand | - |
| Category | Office Equipment, Supplies & Services / Photo Printing Equipment |
| Origin | - |
| Brand | Paisen |
| Model Number | BW61 |
| Chemical Type | Black & White Paper Developer |
| Formulation Basis | Kodak D72 Equivalent |
| Physical Form | Concentrated Liquid Solution |
| Container Volume | 1 Liter |
| Dilution Ratio | 1:2 to 1:4 (Stock to Water) |
| Primary Application | Darkroom Photo Paper Processing |
| Tone Characteristic | Neutral Black with Warm Options via Dilution |
| Shelf Life (Unopened) | 24 Months |
Anonymous
Mar 30, 2026
Rating: 3/5
Works well but strong odor
The chemical works great for developing, but be sure to have good ventilation. The smell is quite potent when mixing the stock solution. Results are professional though.
Anonymous
Mar 28, 2026
Rating: 5/5
Classic results
If you miss the old Kodak days, this is the closest match I have found currently on the market. Deep shadows and crisp highlights every time.
Anonymous
Mar 23, 2026
Rating: 5/5
Reliable and Consistent
I've processed hundreds of 8x10 prints with this batch. The activity remains stable in the working solution for several hours if covered. No fogging issues observed.
Anonymous
Mar 11, 2026
Rating: 4/5
Great value for students
Perfect for my university darkroom class. It's much more affordable than buying pre-mixed gallons, and one liter of concentrate goes a very long way when diluted properly.
Anonymous
Mar 08, 2026
Rating: 5/5
Excellent D72 Alternative
This developer works exactly as expected for a D72 formula. I get consistent neutral blacks on my fiber-based papers. The concentrate mixes easily and the bottle arrived well-sealed.
Anonymous
Mar 01, 2026
Rating: 4/5
Good contrast control
By adjusting the dilution ratio, I can easily shift from normal contrast to slightly softer tones. It handles variable contrast papers very well. Only wish the label had more detailed mixing charts.
Q: Is this solution compatible with resin-coated (RC) paper?
A: Yes, Paisen BW61 is fully compatible with both Fiber-Based (FB) and Resin-Coated (RC) black and white photographic papers. Development times may vary slightly between the two types.
Q: How many 8x10 prints can I make from one liter of concentrate?
A: Yield varies based on dilution and tray size, but generally, 1 liter of concentrate can produce approximately 2 to 3 gallons of working solution, capable of developing roughly 100-150 standard 8x10 prints before exhaustion.
Q: What is the recommended storage temperature for the concentrate?
A: Store the unopened concentrate in a cool, dark place between 50°F and 70°F (10°C - 21°C). Avoid freezing or exposing the bottle to direct sunlight to maintain chemical stability.
Q: Does this contain hydroquinone?
A: Yes, as a standard D72-type formulation, this developer contains hydroquinone and metol. Please handle with care, wear gloves, and ensure adequate ventilation during use.
Q: Can this be used for developing black and white film negatives?
A: No, this formula (D72 equivalent) is specifically designed for photo paper. Using it on film may result in excessive grain and high fog levels. Please use a dedicated film developer like D-76 or HC-110 for negatives.
Electrical Box with PLC System and VFD for Fans and Pumps
$2,519.00
Zunjue Watercolor Sketchbook 300g Fabric-Covered Journal – Portable Acrylic Marker Book, 100% Cotton Flip-Style Concertina Drawing Paper
$13.70
French Imported Arches Watercolor Paper, Handmade Cotton Pulp 300g Full/Half/4K/8K/16K/32K Rough/Medium/Fine Grain, 185g Cotton Pulp for Postcards and Watercolor Books
$20.80
![[Official Authentic] Zichao Bear Wanda Cinema Popcorn Acrylic Keychain Plush Doll Cute Toy](https://www.gosteppe.com/cache/small/product/269355/legacy-main-ae40bf0d9a6007e2f30a9130.webp)
[Official Authentic] Zichao Bear Wanda Cinema Popcorn Acrylic Keychain Plush Doll Cute Toy
$25.40
Heidelberg Printing Press Automatic Blanket Wash Cloth - Non-Woven Cleaning Fabric, 500m Roll
$3,185.00
Bucket Pack Natural Wood Colored Pencils Water-Soluble for Kids Coloring and Doodling
$6.65
Chunfei Grocery Store Yunm'an GR02 Gravel Bike - Thru-Axle Disc Brake, Lightweight Touring with Multiple Rack Mounts
$6,444.00
Variable Frequency Drive Power Board ZPOW-591 for ACS880
$2,200.00
Professional Sketching Eraser Kit - Blending Stumps, Sponges, and Paper Tortillons for Highlight & Shadow Correction
$3.90
Weighted Water Bag with Handle, Thickened PV Mesh Gravity Ballast for Banner Stand Fixation (8KG)
$35.10
Ultra-Fine Purification Lint-Free Cloth Cleaning Cloth Lens Wipe High Quality 0730 Water-Absorbing Dust Removal UV Nozzle 100 Sheets
$96.00
Wen Zhengming Small Regular Script Calligraphy Cards: Li Sao Jing, Thousand Character Classic, Qin Fu, Cao Tang Shi Zhi, Qing Jing Jing, Record of the Drunken Pavilion, Red Cliff Ode
$59.00
Zhizhi Manshu Zhao Mengfu Small Regular Script Collection of Ancient Classics (Vol. 1) - Calligraphy Copybook, Brush Writing Cards, Foldable Practice Cards
$49.00
Language of Drums Motion Path Set - Essential Creativity and Rhythm Teaching Material for Drum Kits and Jazz Drums
$59.14
onlycook Sink Drain Basket, Faucet-Mounted Food Residue Separator and Washing Strainer - 1 Pack
$14.10
Heavy-Duty Wiper Arms and Blades for Trucks and Agricultural Vehicles - Universal Replacement Wiper Rubber Strips
$5.50
Bus Adapter FEPL-02 for ABB Variable Frequency Drive
$1,230.00
Baby National Trend Rattle Toy – Chewable Silicone, Easy-Grip Handle, Soft Sound for Early Learning
$19.90
Palace Museum Creative Stationery: Light & Shadow Graffiti Coloring Book - Exquisite DIY Children's Gift, Ancient Style Watercolor Set for Boys and Girls, Early Learning Art Toy
$29.70
Dongyi Study Room Antique Brass Water Pot, Brush Washer Basin, and Small Spoon Set for Calligraphy (3-Piece)
$33.10
![[Deposit Only] Slightly Round Mid-Heel Shoes – Matte Lambskin Puff Lolita Bow Pumps](https://www.gosteppe.com/cache/small/product/269338/legacy-main-1108a4ac9d29ca837505d228.webp)
[Deposit Only] Slightly Round Mid-Heel Shoes – Matte Lambskin Puff Lolita Bow Pumps
$38.00
Chunfei Grocery Store Yunan GR02 Gravel Bike with Thru-Axle Disc Brakes, Lightweight Touring Setup with Multiple Rack Mounts
$8,934.00
5A Natural Madagascar Rose Quartz Loose Beads, Pink Crystal Rhodonite Single Beads for DIY Jewelry Making Accessories
$0.70
Mini Portable Sketchbook - Blank Pocket Notebook for Doodling, Sketching, Watercolor, Acrylic, and Marker Art - Square Hand-Drawn Journal
$5.53
Kitchen Sink Drain Mat with Raised Slope - Splash-Proof Countertop Organizer for Faucet Areas
$9.00
Front Wheel Bearing for Hyundai Mistra - Mingtuo Brand - Also Fits Hyundai Sonata and Kia Opirus - Front and Rear Auto Bearings
$275.00
White Crystal Loose Beads Donghai Agate Gemstone Gold Rutilated Quartz Obsidian Bracelet Strand Aquamarine Amethyst Single Bead
$8.42
Kids Art DIY Stamp Kit - Round Sponge Daubers, Mushroom Head Stamps, and Paint for Graffiti
$2.44
YP8 YP-80000 Book Block Pressing Machine Supply Robust Structure Reliable Application
$23,790.00
Feileniao Four Seasons Flowers Line Drawing Atlas - Chinese Ink Painting Guide for Brush Beginners
$39.90
![[2026 New Edition Labor Contract] Social Security New Regulations, Labor Contracts for Individual Businesses, Temporary Workers, Part-Time Staff, Onboarding Registration Forms, Factory Employee Employment Templates, Probationary Period Labor Cooperation and Partnership Agreements](https://www.gosteppe.com/cache/medium/product/388205/legacy-main-5e4718a8989ad3528843f7ce.webp)
