Black-and-white negative film · Discontinued

Film Washi 'S'

Film Washi 'S' is a black-and-white negative film rated at ISO 50, developed in Black-and-white. Below: specs, an exposure guide and similar stocks.

ISO 50Black-and-whiteDiscontinued135120
ISO 50
Box speed
Black-and-white negative
Type
Black-and-white
Process
Discontinued
Status
?–2022
Years made

Film specifications#

Manufacturer
Film Washi
Film
'S'
Speed
50
Process
B&W
Formats
135, 120
Base
Polyester (PET)
Made in
France
Status
Discontinued

Character & history#

Panchromatic motion picture sound recording film very fine grain and ultra high definition. Discontinuation announced 30 May 2022, stated due to price increases for new stock.

Description adapted from Wikipedia’s “List of discontinued photographic films” (CC BY-SA 4.0).

Exposure guide at ISO 50#

Sunny 16 for this film: f/16 at 1/50 s in bright sun. Negative film tolerates 2–3 stops of overexposure; slide film needs accuracy within about ⅓–½ stop.

Lightf/2f/4f/8f/16
EV 16 · Snow / beach, bright sun—1/2000 s1/500 s1/125 s
EV 15 · Bright sun—1/1000 s1/250 s1/60 s
EV 14 · Hazy sun1/2000 s1/500 s1/125 s1/30 s
EV 13 · Cloudy-bright1/1000 s1/250 s1/60 s1/15 s
EV 12 · Overcast / open shade1/500 s1/125 s1/30 s1/8 s
EV 10 · Sunset1/125 s1/30 s1/8 s0.5 s
EV 8 · Bright interior1/30 s1/8 s0.5 s2 s
EV 5 · Home interior at night1/4 s1 s4 s15 s
EV 3 · City street at night1 s4 s15 s> 1 min

Push & pull options#

Tell your lab how many stops you pushed or pulled so development is adjusted for the whole roll.

AdjustmentRate the film atEffect
Pull 1 stopEI 25Lower contrast, finer grain
Push 1 stopEI 100More contrast and grain
Push 2 stopsEI 200Strong contrast, coarse grain, blocked shadows
Push 3 stopsEI 400Strong contrast, coarse grain, blocked shadows
Developing Black-and-white: Traditional black-and-white development (e.g. D-76/ID-11, HC-110, Rodinal, XTOL) — easy to do at home.

Long exposures#

Most films suffer reciprocity failure beyond about 1 second: they need more exposure than the meter says. As a rule of thumb add ⅓–1 stop for 1–10 s and 1–2 stops beyond 10 s for older emulsions; modern T-grain films (and Fuji Acros) need much less. Check the manufacturer's datasheet.

More Film Washi films#

Frequently asked questions#

What ISO is Film Washi 'S'?

50 — set your meter to ISO 50 for box speed.

Is Film Washi 'S' still made?

No, it has been discontinued (?–2022).

How do I develop Film Washi 'S'?

B&W process. Traditional black-and-white development (e.g. D-76/ID-11, HC-110, Rodinal, XTOL) — easy to do at home.

Is Film Washi 'S' available in 35mm?

Yes — formats: 135, 120.

Sources & licences#

Last updated October 03, 2026 · How we calculate · Sources