Develop 4x5 Sheet Film Yourself: An Overview of All Methods
You’ve taken the leap into large format — congratulations. But now you face a question every new 4x5 photographer asks: How do I develop these huge negatives at home?
If you come from 35mm, you know the drill: film in the spiral, spiral in the tank, chemicals in, done. With sheet film, things suddenly get more complicated. There are surprisingly many methods, from free to several hundred euros. Each has its merits — and its pitfalls.
This article gives you an honest overview of all common methods so you can find the one that fits your budget, workflow, and needs.
Here’s the accompanying video: Developing 4x5 sheet film in a Paterson tank
1. Tray Development
Cost: €0–20 (just trays + chemicals)
Capacity: 1–10+ sheets (depending on tray size)
Darkness: Completely dark during the entire process
The oldest and cheapest method. You place your sheet films in open photo trays and manually move them through developer, stop bath, and fixer.
Video: Tray processing sheet film
Advantages:
- Practically free if you already have trays
- Full control over every single sheet
- Ideal for the Zone System (N+/N- development per sheet)
- Ansel Adams worked this way — proven for decades
Disadvantages:
- You stay in total darkness throughout the entire process
- Blind handling with open chemical trays
- Real risk of scratches (film corners scratching adjacent sheets) plus high chemical consumption
- Learning curve for "shuffling" (flipping films without damaging them)
For whom? Photographers who need maximum control, use the Zone System, and have no problem working in darkness. Or beginners who want to test without investment first.
2. The "Taco Method"
Cost: €5–10 (rubber bands + existing tank)
Capacity: Up to 4 sheets in a standard tank
Darkness: Completely dark when loading
The budget hack: You roll the sheet film into a "U" shape (hence "Taco"), secure it with rubber bands, and place it in a regular Paterson or Jobo tank.
Video: Developing sheet film taco method
Advantages:
- Almost free
- Uses existing equipment
Disadvantages:
- Unreliable — rubber bands slip off, films stick together
- Uneven development due to limited chemical circulation
- The emulsion is on the inside and poorly rinsed
- Confusing orientation in the dark
For whom? Honestly: for no one long-term. It’s a stopgap, not a system. If you develop more than one test film, invest in a better solution.
3. HP Combi Plan T
Cost: 45–90 € (used only, hard to find)
Capacity: 6 sheets per frame
Darkness: Dark when loading the frame, then daylight
A classic from the 90s. The Combi Plan is a compact dip-and-dunk system with a film frame that is dipped into separate tanks for developer, stop bath, and fixer.
Image: Secondhand Darkroom
Advantages:
- Affordable entry (often under 50 € used)
- Clever clamp holders prevent slipping
- Compact dip-and-dunk principle
Disadvantages:
- No longer produced — you rely on the used market
- Tight lids can cause uneven distribution when pouring
- Chemical circulation is not on par with modern systems
- Spare parts hard to find
For whom? Bargain hunters who find a tested, proven system on eBay.
4. Yankee/Nikor Tanks
Cost: 20–60 € (used)
Capacity: 4 sheets (with divider) or 1× 8x10
Darkness: Partly daylight-compatible
Older American tank systems with swing agitation. Occasionally found at flea markets or online auctions.
Video: Large Format Film - 4x5 Film Processing Methods
Advantages:
- Very cheap used
- Multi-format (4x5 and 8x10)
- Simple principle
Disadvantages:
- Uneven results — many users report streaks and spots
- Outdated design
- No spare parts, no community
For whom? Collectors and tinkerers. For serious work, there are better options.
5. MOD54
Cost: ~60 € (e.g. Fotoimpex 59.90 €, Macodirect 58.95 €)
+ Tank: Paterson Multi-Reel 3 PTP116 — ~30 € (Macodirect 29.95 €)
Total cost: ~90 €
Capacity: 6 sheets 4x5
Darkness: Dark when loading, then daylight (inside the Paterson tank)
Image: Macodirect
The MOD54 is the best-known insert for standard Paterson tanks. Developed by photographer Morgan O'Donovan under the MOD Photographic brand, it has established itself as a reliable solution in the community. Although the original manufacturer’s website is no longer accessible, the product is still available through specialist dealers like Fotoimpex and Macodirect.
Advantages:
- 6 sheet capacity
- Large community, many user reports
- Immediately available for purchase
Disadvantages:
- Requires the larger Paterson PTP116 (Multi-Reel 3) — not the standard PTP115!
- No integrated light trap
- Loading in the dark requires practice
For whom? Photographers who already own a Paterson Multi-Reel 3 tank (PTP116) and want a proven injection-molded solution.
6. Stearman Press SP-445
Cost: 100 € (Fotoimpex), $96 USD directly from manufacturer
+ Tank: included (standalone system)
Total cost: ~100 €
Capacity: 4 sheets 4x5
Darkness: Daylight loading (standalone tank)
Image: Stearman Press Shop
The SP-445 is a standalone tank system specially designed for 4x5 sheet film. The special feature: you can load the film in daylight. Requires only 475 ml of chemicals per run.
Advantages:
- Daylight loading — no changing bag, no darkroom needed
- Excellent chemical circulation and even development
- Compact, standalone, and economical in chemical use (475 ml)
- Available directly from Fotoimpex in Germany
Disadvantages:
- Only 4 sheets (instead of 6 with most alternatives)
- Not usable for other formats
For whom? Photographers without a darkroom seeking maximum convenience. Available from Fotoimpex in Germany.
Manufacturer: Stearman Press, USA — shop.stearmanpress.com
7. JOBO 2509n / rotary development
Spiral cost: 70,26 € (Macodirect)
+ Tank: JOBO 2500 series required. Cheapest new tank: JOBO 2550 Multitank 5 — 170.75 € (Macodirect)
Total cost: ~241 € (spiral + tank, without processor!)
Capacity: 6 sheets per 2509n spiral
Darkness: Dark when loading, then daylight
Image: Macodirect
The professional solution. The JOBO 2509n spiral holds 6 sheets of 4x5 and fits all JOBO tanks of the 2500 series (2520, 2521, 2523, 2550). It can be used with a JOBO rotary processor or manual inversion development — a processor (CPP-2/CPP-3, from 4,190 €) is not strictly necessary.
Advantages:
- Precise temperature control (with processor)
- Continuous agitation for maximum evenness
- Multi-format (35mm, 120, sheet film) with professional results
- Also usable manually (without processor)
Disadvantages:
- High entry costs — tank alone already 170+ €
- Complete system with processor: 4,000+ €
- Space-consuming
- Cheapest tank (2520) only available used
For whom? Professionals, heavy developers, and anyone who wants to do C-41 or E-6 at home. If you develop 20+ sheets per week, the investment pays off.
8. 3D-printed solutions
Cost: €10–50 (filament/printing service)
Capacity: 4–6 sheets (depending on design)
Darkness: Varies by design
The open-source revolution has also reached film development. On platforms like Printables and Thingiverse, you’ll find free designs for Paterson-compatible sheet film inserts.
Image: Evan Dorsky on Printables
Advantages:
- Extremely affordable (especially with your own 3D printer)
- Customizable to your own needs
- Community-driven, constant improvements
- Uses existing Paterson tanks (PTP115)
Disadvantages:
- Print quality varies greatly
- Long-term durability of PLA/PETG in chemicals not always tested
- Fit depends on printer type
- Trial and error on first use
For whom? Makers, tinkerers, and anyone with access to a 3D printer. Those who enjoy optimizing.
9. Ausgeknipst 4x5 development reel MK2
Costs: 59,95 €
+ Tank: Standard Paterson PTP115 — ~€25 (the smaller, cheaper tank!)
Total cost: ~€85 — the cheapest new complete system
Capacity: 6 sheets 4x5
Darkness: Dark when loading, then daylight (integrated light trap)
Our own solution — and yes, we’re biased, so it’s deliberately not listed first. The reel is based on the open-source design by Evan Dorsky on Printables, which we further developed.
What makes the MK2 version different?
The key difference from the original design is an integrated light trap. If you put the simple open-source design into a Paterson tank, the standard funnel no longer fits — so you'd have to do the entire development process in the dark. Our MK2 version has its own light trap that solves this problem:
- Load film into the reel in the dark
- Place light trap
- Attach standard Paterson funnel
- Lights on — from now on everything in daylight
An honest note: Loading requires a bit of finesse at first. Practice a few times in daylight with an old film before you try real shots.
After development, the reel can be split into two halves, so you can remove the negatives without resistance — no pulling or pushing on the wet, delicate emulsion.
Advantages:
- Cheapest NEW system for 4x5 tank development (~€85 complete)
- Works with the standard Paterson PTP115 (not the more expensive PTP116!)
- Integrated light trap (MK2 upgrade)
- 6 sheet capacity
- Disassemblable for scratch-free removal, open-source base
- Immediately available for purchase
Disadvantages:
- Loading in the dark requires practice
- Smaller community than MOD54
Need a matching Paterson tank? → Paterson tanks at Ausgeknipst
Besides the 4x5 version, we also have spools for 9x12 and other niche formats.
→ View 4x5 development spool MK2 in the shop
Comparison table
| Method | System price | Tank price | Total price | Capacity | Daylight? | Availability |
|---|---|---|---|---|---|---|
| Tray development | 0–20 € | — | 0–20 € | flexible | completely dark | New |
| Taco method | 5–10 € | available | 5–10 € | ~4 sheets | when loading | Always |
| HP Combi Plan T | 45–90 € | incl. | 45–90 € | 6 sheets | after loading | Used only |
| 3D printing (Evan Dorsky) | 10–50 € | PTP115 ~25 € | 35–75 € | 4–6 sheets | Varies | Printing service |
| Ausgeknipst MK2 | 59,95 € | PTP115 ~25 € | ~85 € | 6 sheets | Light trap | New |
| MOD54 | ~60 € | PTP116 ~30 € | ~90 € | 6 sheets | after loading | New |
| Stearman SP-445 | 100 € | incl. | ~100 € | 4 sheets | complete | New |
| JOBO 2509n | 70 € | JOBO 2550 ~171 € | ~241 € | 6 sheets | Partial | New |
Chemicals and practical tips
No matter which method you choose — a few basic rules always apply:
Chemical volume: For inserts for Paterson tanks, you need about 500 ml of chemicals in the PTP115 (Ausgeknipst MK2), about 1000 ml in the PTP116 (MOD54).
Agitation: Tilt the tank normally when agitating, but not too aggressively. With cartridge systems, too much movement can cause films to slip out of their guides.
Temperature: Especially with C-41 (color), precise temperature control is crucial. For black and white negative film, a deviation of ±0.5°C is usually not critical.
Changing bag: If you don’t have a darkroom, a changing bag is essential for loading (applies to all methods except SP-445).
Note on the LAB-BOX: The LAB-BOX from ars-imago is sometimes mentioned as a 4x5 solution but supports exclusively 35mm and 120 roll film. A 4x5 module does not exist and is not announced.
Conclusion: Which method suits you?
There is no "best" method — only the right one for your situation:
- No budget? → Tray development. Costs nothing but works.
- Already have a Paterson tank? → Ausgeknipst MK2 (fits the standard PTP115!) or MOD54 (needs the larger PTP116).
- Buy everything new and as cheap as possible? → Ausgeknipst MK2 + PTP115 for ~85 € — the cheapest new complete system.
- No darkroom, no changing bag? → Stearman Press SP-445 (orderable at Fotoimpex in Germany).
- Professional standards and budget available? → JOBO 2509n + 2500 tank.
- Maker with 3D printer? → Print Evan Dorsky's design yourself.
The most important thing: Start. No method is perfect, and you will develop your own workflow. Most large format photographers have tried several methods over time and then settled on one.
If you have any questions — write to us via the contact form or leave a comment under the video.
Good light! Your Vladi from Ausgeknipst.