Black-and-white negative film · In production

Ultrafine Ortho Litho Film

Ultrafine Ortho Litho Film is a black-and-white negative film rated at ISO 10, developed in Black-and-white. Below: specs, an exposure guide and similar stocks.

ISO 10Black-and-whiteIn production135-20100 ftSheet
ISO 10
Box speed
Black-and-white negative
Type
Black-and-white
Process
In production
Status
Available
Years made

Film specifications#

Manufacturer
Ultrafine
Film
Ortho Litho Film
Speed
10
Process
B&W
Formats
135-20, 100 ft, Sheet
Base
Triacetate
Made in
US
Status
In production

Character & history#

Orthochromatic Film originally designed primarily for making line and halftone negatives for photomechanical reproduction and can be utilized as a continuous tone film.

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

Exposure guide at ISO 10#

Sunny 16 for this film: f/16 at 1/10 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 sun1/1600 s1/400 s1/100 s1/25 s
EV 15 · Bright sun1/800 s1/200 s1/50 s1/13 s
EV 14 · Hazy sun1/400 s1/100 s1/25 s1/6 s
EV 13 · Cloudy-bright1/200 s1/50 s1/13 s0.3 s
EV 12 · Overcast / open shade1/100 s1/25 s1/6 s0.6 s
EV 10 · Sunset1/25 s1/6 s0.6 s2.5 s
EV 8 · Bright interior1/6 s0.6 s2.5 s10 s
EV 5 · Home interior at night1.3 s5 s20 s> 1 min
EV 3 · City street at night5 s20 s> 1 min> 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 5Lower contrast, finer grain
Push 1 stopEI 20More contrast and grain
Push 2 stopsEI 40Strong contrast, coarse grain, blocked shadows
Push 3 stopsEI 80Strong 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 Ultrafine films#

Frequently asked questions#

What ISO is Ultrafine Ortho Litho Film?

10 — set your meter to ISO 10 for box speed.

Is Ultrafine Ortho Litho Film still made?

Yes, it is currently in production (Available).

How do I develop Ultrafine Ortho Litho Film?

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

Is Ultrafine Ortho Litho Film available in 35mm?

Yes — formats: 135-20, 100 ft, Sheet.

Sources & licences#

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