Ilford Mark V

Ilford Mark V is one of those names that turns up in old Ilford cine catalogs but almost never in still-photography reference texts. It was a 35mm black and white motion picture negative film, listed alongside the aerial stocks rather than the still-camera HP and FP lines. Ilford rated it 250 ASA in daylight and 200 ASA tungsten, with minimum-exposure ratings of 500 and 400 for newsreel work in poor light. It shipped from around 1965 into the 1970s and was never sold in factory-loaded 35mm still cassettes. Concrete data on the specific emulsion is thin compared to its siblings, which is itself a clue about its market position. Mark V was sold to newsreel crews and television units who needed a fast cine stock for poor light, night filming, and broadcast work.

The stock used a traditional cubic-grain silver emulsion typical of mid-1960s Ilford cine work. Surviving documentation describes it as fine-grained with wide exposure latitude suited to mixed-light newsreel filming, not to still-photography flash work. Microphen and Promicrol were the developers of choice for British press labs in this period, both giving Mark V a half-stop speed boost when the editor needed faster turnaround than standard ID-11 times allowed.

Some contemporary accounts suggest the Mark V emulsion may have shared lineage with Ilford's HP family of the period, though Ilford never marketed it as a still film for the HP user base.

It was sold on 35mm cine stock with motion picture perforations, never in 120 rollfilm or sheet sizes. Production appears to have continued into the late 1970s, with surviving cans dated 1978 and 1979 turning up on the secondary market.

Surviving rolls are estate-sale finds from old press archives. Heavy base fog is the default. Rate any found stock at 200, develop in fresh ID-11, and treat results as a tonal study rather than a critical workflow.

Reciprocity exponent is 1.31, the conventional silver-grain baseline. Zone Light Meter applies the correction past one second. A 30-second meter reading becomes about 90 seconds at the negative, the same math you would use for HP5+ or Tri-X today.