Ferrania · ISO 30 B&W negative

Ferrania Pancro 30

B&W negative ISO 30 Discontinued Italian neo-realism · cine-origin · silver-rich · ISO 30

Pancro 30 is the cine-stock ancestor of everything Ferrania has done since. The original ISO 30 emulsion ran through Italian motion-picture cameras from the mid-1950s into the early 1970s and defined the look of post-war Italian cinema. Pasolini, De Sica, Rossellini and Fellini all shot on it. Fellini's 8 1/2 used the related P30 cine stock in 1963; De Sica's Two Women, with Sophia Loren's Academy-winning performance in 1960, ran on Pancro 30 directly.

The character is what film schools mean when they say neo-realist look: silvery midtones, blacks that drop fast and stay there, a highlight compression that reads as period-correct because the period set the standard. High silver content, similar to what FILM Ferrania has revived in the current P30 at ISO 80, but the original emulsion was slower and grainier, closer to a slow Agfa Isopan than to anything tabular today.

Ferrania discontinued Pancro 30 somewhere in the early to mid-1970s as television replaced cinema and the slower cine stocks lost their working market. The 1958 still-photography variant that became modern P30 is a separate product. Pancro 30 was a motion-picture stock first and a still emulsion second; sheet and roll conversions existed but were never the main line.

Nothing is currently available. Any roll claiming to be Pancro 30 today is either misidentified P30, a clone, or freezer-stock that has been sitting at least fifty years. Behavior at that age is unpredictable.

The reciprocity exponent is 1.33, slightly steeper than the 1.31 baseline Tri-X and HP5+ share. Zone Light Meter applies the correction past one second. A 30-second meter reading climbs to roughly 100 seconds at the negative. For long-exposure work on freezer-stock with unknown keeping, treat the calculated correction as the floor and bracket aggressively past about 30 seconds, because base fog has had decades to drift.

How the app handles this stock

  • Box speed: ISO 30. Picker exposes pull/push chips so you can shoot it at any speed you want and the meter follows.
  • Reciprocity: Above one second the app raises metered time to the power of 1.33.
  • Expired film: if you load an old roll, set the expiry year and storage in the app and the ISO scales for you. B&W negative decay rates are baked in.

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