---
title: "Film Washi \"F\" 120"
url: https://shop.neoanaloglab.com/en/products/washi-f-120
language: en
description: "The same fluorographic X-ray stock, hand-spooled onto 120 by Film Washi: ISO 100, orthochromatic, single-coated on polyester, and it blooms where the highlights are."
---

# Film Washi "F" 120

Film Washi · Film · 120 / ISO 100

- Price: ¥2,402 (JPY, consumption tax included)
- Availability: Sold out
- Condition: New
- SKU: WASH-FILM120-F-ISO-100
- GTIN / JAN: 3770027506010
- Ships outside Japan: Yes, by Japan Post

## Description

The same fluorographic X-ray stock, hand-spooled onto 120 by Film Washi: ISO 100, orthochromatic, single-coated on polyester, and it blooms where the highlights are.

"F" is a fluorographic X-ray film — the stock used for mass lung screening — coated by machine in another factory and hand-spooled onto 120 by Film Washi in Brittany. It carries a single emulsion on one side of a 100 µm polyester base rather than the double coating of dental and medical sheet film, so no special handling regime is needed: it develops as an ordinary black and white negative in ordinary chemistry. Film Washi publishes 9 min in Rodinal 1+25, 8 min in Ilfotec LC29 1+19, 11 min in D-76 1+1 and 4.5 min in HC-110 dilution A at 20 °C, and says to use Ilford FP4 times and dilutions for any developer not on that list. It is orthochromatic with a maximum sensitivity of 575 nm, so reds record dark and you may work under a red safelight. There is no anti-halation layer and highlights bloom back through the base as a halo; the datasheet rates the grain high and the contrast medium, and states that this diffusion is noticeably gentler in 120 than in 135 and varies with the angle of the light. Unlike the 135, a 120 roll can be loaded as usual — the blank-frame routine is a 135 precaution — but Film Washi advises securing the roll with a rubber band or tape as you unload it. The rolls are hand-spooled, and Film Washi warns that a few very delicate cameras can have trouble handling them: never force the winding lever.

## Specifications

| Specifications | |
| --- | --- |
| Format | 120 |
| Speed | ISO 100 |
| Process | Black and white negative |
| Base | Polyester, 100 µm, single-coated |
| Spectral sensitivity | Orthochromatic, maximum 575 nm |
| Safelight | Red |
| Development | 20 °C — Rodinal 1+25 9 min / Ilfotec LC29 1+19 8 min / D-76 1+1 11 min / HC-110 dil. A 4.5 min; otherwise use Ilford FP4 data |
| Spooling | Hand-spooled by Film Washi; secure the roll with a band or tape when unloading |

## 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_f_120/F120_product_00.jpg

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Prices and stock as of: 2026-10-20T04:00:26.466Z · https://shop.neoanaloglab.com/en/products/washi-f-120