--- title: "Paterson Super System 4 Developing Tank (3-Reel, AGO Modified)" url: https://shop.neoanaloglab.com/en/products/paterson-developing-tank-3-reel language: en description: "A Paterson Super System 4 tank in the 3-reel size (PTP116), supplied with the AGO-modified three-hole funnel so it runs on the AGO Film Processor straight out of the box. It is also the smallest Paterson tank that accepts the Vintage Visual 4×5 and 9×12cm sheet-film REELs." --- # Paterson Super System 4 Developing Tank (3-Reel, AGO Modified) Paterson · Bench equipment · 3-reel Paterson tank / AGO-modified three-hole funnel / accepts 4×5 and 9×12cm REELs - Price: ¥6,300 (JPY, consumption tax included) - Availability: In stock (3) - Condition: New - SKU: PATE-ACCTANK-3-REEL - Ships outside Japan: No, Japan only - Buy: [Checkout page](https://shop.neoanaloglab.com/buy/PATE-ACCTANK-3-REEL:1?context/language=en) — Opens a confirmation page; stock is reserved and payment is taken only when the buyer continues to Stripe Checkout. ## Description A Paterson Super System 4 tank in the 3-reel size (PTP116), supplied with the AGO-modified three-hole funnel so it runs on the AGO Film Processor straight out of the box. It is also the smallest Paterson tank that accepts the Vintage Visual 4×5 and 9×12cm sheet-film REELs. In the box: the Paterson tank body with its watertight EVA cap, the AGO-modified funnel already drilled with the three holes chemistry pours through, plus the lid and agitation rod — no drilling and no template needed. The 3-, 5- and 8-reel tanks ship without reels, so add Paterson Auto-Load reels (adjustable for 35mm, 126, 127, 120 and 220), a Vintage Visual REEL 110 for 110 film, or a sheet-film REEL as needed. This size takes up to three roll-film reels, or one 4×5 or 9×12cm REEL holding up to four sheets. On the AGO the minimum chemistry volume is 450 ml for roll film and 350 ml with a 4×5 or 9×12cm REEL, and with the 4×5 reel the listed volume has to be followed accurately. The AGO can agitate it rotary (horizontal) or vertically with the stick, but time compensation only runs in rotary mode — in vertical mode the temperature probe does not sit in the liquid, so compensation is switched off. Rotary agitation uses up to 60% less chemistry than traditional vertical or inversion agitation methods. The 5×7 and Paper 5 REELs need a Paterson 5-reel tank or larger, so step up a size if 5×7, 8×10 or RA-4 prints are on your list. Without the AGO it behaves as an ordinary Paterson tank for hand inversion development. ## Specifications | Specifications | | | --- | --- | | Type | Paterson Super System 4 developing tank, 3-reel (PTP116), with AGO-modified funnel | | Capacity | Up to 3 roll-film reels, or one 4×5 or 9×12cm REEL (up to 4 sheets) | | Formats | 135, 126, 127, 120 and 220 with Paterson Auto-Load reels; 110 with the Vintage Visual REEL 110; 4×5 and 9×12cm with Vintage Visual sheet-film REELs (reels sold separately) | | Minimum chemistry volume | With AGO: 450 ml for roll film, 350 ml with a 4×5 or 9×12cm REEL. With the 4×5 reel the listed volume must be followed accurately. | | In the box | Tank body with watertight EVA cap, AGO-modified three-hole funnel, lid, agitation rod. Reels not included. | | Compatibility | AGO Film Processor, rotary (horizontal) or vertical stick agitation — time compensation is active in rotary mode only. Also usable for hand inversion. 5×7 and Paper 5 REELs require a Paterson 5-reel tank or larger. | | Brand / supplier | Paterson tank; funnel modification by Vintage Visual OÜ (Estonia) | | Warranty | 24-month warranty from purchase | ## Shipping and returns - Free shipping within Japan on orders of 15,000 JPY or more. - Roll film ships free from 3 rolls of 135 or 5 rolls of 120. - Otherwise 500 JPY for small tracked roll-film parcels and 900 JPY for other tracked shipments. - Orders ship within 2-5 business days after payment is confirmed (weekends and Japanese holidays not counted). Delivery within Japan usually takes 1-2 days (2-4 for small roll-film parcels). - Returns: Within 30 days of delivery. Change-of-mind returns must be unopened and unused; damaged or defective items are accepted even if opened. ## Questions - **Are enlarger lens boards and negative carriers interchangeable?** No — they are specific to the enlarger maker and model. Check the compatibility notes in each product's specifications, or contact us with your enlarger model before ordering. - **How do I choose a darkroom timer?** For enlarging, second-precision exposure control matters most. For film and print processing, a timer that can step through multiple stages is the practical choice. - **How is equipment shipped?** Within Japan, equipment ships by standard tracked courier at 900 JPY, free over a 15,000 JPY product subtotal. Any surcharge for oversized items is shown clearly at checkout. ## Images - https://shop.neoanaloglab.com/product-images/products/prod_paterson_tank_3_reel/tank_3reel_00.jpg - https://shop.neoanaloglab.com/product-images/products/prod_paterson_tank_3_reel/tank_3reel_01.jpg - https://shop.neoanaloglab.com/product-images/products/prod_paterson_tank_3_reel/tank_3reel_02.jpg --- Prices and stock as of: 2026-10-20T03:59:38.970Z · https://shop.neoanaloglab.com/en/products/paterson-developing-tank-3-reel