---
title: "Film Washi E 120"
url: https://shop.neoanaloglab.com/en/products/washi-e-120
language: en
description: "An ISO 3 red-sensitive printed-circuit-board film hand-spooled into 120, processed like RC printing paper and handled under a green safelight — never red."
---

# Film Washi E 120

Film Washi · Film · 120 / ISO 3

- Price: ¥2,280 (JPY, consumption tax included)
- Availability: In stock (5)
- Condition: New
- SKU: WASH-FILM120-E-ISO-3
- GTIN / JAN: 3770027506034
- Ships outside Japan: Yes, by Japan Post
- Buy: [Checkout page](https://shop.neoanaloglab.com/buy/WASH-FILM120-E-ISO-3:1?context/language=en) — Opens a confirmation page; stock is reserved and payment is taken only when the buyer continues to Stripe Checkout.

## Description

An ISO 3 red-sensitive printed-circuit-board film hand-spooled into 120, processed like RC printing paper and handled under a green safelight — never red.

"E" did not start life as a camera film. It is an industrial phototooling stock made for imaging printed circuit board masters, which Film Washi buys by the industrial roll and converts to 120 at its workshop in Brittany. Because PCB imagesetters write onto it with a red laser, the emulsion is red-sensitive with a stated maximum around 700 nm and has no sensitivity to green at all — the mirror image of an orthochromatic film. That inverts the darkroom rule most people work by: the datasheet specifies a GREEN 500 nm safelight, and an ordinary red safelight will fog it. Work under green, or in complete darkness. Film Washi rates it 3 ISO / 6° DIN with very fine grain and strong contrast, machine-coated onto a blue polyester base 175 µm thick — roughly twice the 100 µm base used for its other converted films, so it feels distinctly stiff, and the developed negative sits on a blue transparent base rather than a clear one. No developer, dilution or time is published: the maker's only processing instruction is that it can be processed like a classic RC photo printing paper, meaning paper developer, stop and fix. ISO 3 is enlarging-paper speed, so a tripod is the working assumption — sunny-16 arithmetic puts even a bright sunlit scene at about a quarter of a second at f/16 — and green foliage records very dark, which is why Film Washi points this film at still life and portraits rather than landscape. The 120 rolls are hand-spooled onto recycled backing paper; the datasheet warns that a few very delicate cameras can have trouble winding them, says never to force the winding lever (contact Film Washi instead), and advises securing the exposed roll with a rubber band or tape as soon as it leaves the camera.

## Specifications

| Specifications | |
| --- | --- |
| Format | 120 roll film |
| Speed | ISO 3 (6° DIN) |
| Process | Black and white negative |
| Base | Blue polyester, 175 µm |
| Spectral sensitivity | Red-sensitive, maximum 700 nm; no green sensitivity |
| Safelight | Green 500 nm, or total darkness — a red safelight will fog it |
| Development | As for classic RC printing paper (paper developer, stop, fix); Film Washi publishes no times |
| Grain | Very fine |
| Contrast | Strong |
| Coating | Industrially machine-coated stock, converted and hand-spooled by Film Washi |

## 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).
- Ships to 165 countries and regions by Japan Post at Japan Post's own postage (International Air Packet, International Parcel by air, EMS), priced by destination and packed weight.
- 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

- **Does film need to be refrigerated?** Store unexposed film in a cool, dark place away from heat and humidity. For storage beyond a few months, refrigeration below 10°C is recommended. Let film return to room temperature in its packaging for 2-3 hours before shooting to avoid condensation.
- **What is the difference between C-41, E-6, and black-and-white processing?** C-41 develops color negative film, E-6 develops reversal (slide) film, and black-and-white negative film uses dedicated B&W chemistry. The Neo Analog Lab mail-in processing service handles C-41, E-6, ECN-2, and black-and-white.
- **What is the difference between 135 and 120 film?** 135 is standard 35mm cassette film, usually 24 or 36 exposures. 120 is medium-format roll film: about 16 frames at 6x4.5, 12 at 6x6, or 10 at 6x7. Check which format your camera takes before ordering.

## Images

- https://shop.neoanaloglab.com/product-images/products/prod_washi_e_120/E120_product_00.jpg

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Prices and stock as of: 2026-10-20T03:51:10.471Z · https://shop.neoanaloglab.com/en/products/washi-e-120