Ilford Delta

Ilford Delta is a series of photographic films manufactured by Harman Technology Limited. Delta films are tabular-grain black-and-white films, ^[2] and originally released in 400 ISO only to compete with Kodak's T-Max film.^[3]

Delta 100
Maker	Ilford Photo
Speed	100/21°
Type	B&W print
Process	Gelatin-silver
Format	35mm,[1] 120, sheet film
Application	General, portraits
Introduced	1992

Delta 400
Speed	400/27°
Push	EI 3200/36°
Type	B&W print
Format	35mm, 120
Application	General, sports
Introduced	1992

Delta 3200
Speed	1000/31°
Push	EI 3200/36° or much more
Type	B&W print
Format	35mm, 120
Application	General, sports, low-light
Introduced	1998

Ilford recommends Delta 100 and 400 as replacements for the discontinued Agfa APX100 and APX400 films, respectively.^[4] Delta 100 can be used at ISO speeds of 50 to 200.^[5]

Delta 3200

The 'Delta 3200' product is not actually rated at ISO 3200/36°. Its speed is only 1000/31° following the ISO methods, but it has a very wide exposure latitude. Thus it can be successfully push processed to EI 3200 or 6400, or even 12500.^[1] Delta 3200 was introduced in 1998, 10 years after Kodak's similar T-MAX P3200. It replaced Ilford's high speed 'HPS' film.

Delta 400

Delta 400 can also be pushed to EI 3200.

References

1. "Technical Information Delta 3200 Professional". www.ilfordphoto.com. Ilford. Archived from the original on 21 April 2019. Retrieved 21 April 2019.
2. "Ilford History and Chronology". Retrieved 2008-07-26.
3. Kolonia, Peter (1992). In the darkroom. Popular Photography. Retrieved 13 October 2019.
4. "Agfa-Ilford equivalent" (PDF). Ilford Photo. Retrieved 2007-05-18.^{[permanent dead link‍]}
5. "Black & White Film". Archived from the original on 2007-09-27. Retrieved 2007-05-17.

External links

• Ilford Delta 100 Archived 2007-09-27 at the Wayback Machine
• Ilford Delta 400
• Ilford Delta 3200