Konica Chrome 100

Konica unveiled the Centuria Chrome line at Photokina 1999, a serious attempt to break Fuji and Kodak's grip on the E-6 slide market. The 100 was the slow speed in the family, with a 200 joining it as the only other slide speed Konica ever shipped under the Chrome name. By the time most photographers in the West heard of it, Konica Minolta was already winding the imaging business down. The film disappeared with the rest of the line in 2006.

The character is hard to pin down because it depended heavily on light. In bright sun the saturation cranked up and the greens shifted toward yellow in a way Velvia shooters would have called a fault, while in overcast or open shade the same emulsion went pastel and soft, producing the kind of muted slide look that Astia 100F was built for and that most photographers who bought a Konica slide film were not expecting. Same emulsion, two personalities. Some shooters loved that.

Reviewers who tested it against Provia 100F flagged it as slightly grainier and less consistent at the edges of its latitude. The latitude itself was honest: a stop of underexposure was recoverable and a third over was about all the highlights would tolerate before clipping. That is normal for E-6. The Centuria Chrome was never positioned as a Velvia killer.

Processing was standard E-6 with no special quirks. Sold in 35mm only, 36-exposure cassettes. There was no 120 version, no sheet film, and no Quickload option, which kept it off most professional landscape workflows. Konica's R-100 slide film sold in the same era was actually rebadged Agfa stock and is a separate product despite the speed match.

Reciprocity exponent is 1.10. Zone Light Meter applies the correction past one second, and at this exponent the math is gentle. A metered 30-second exposure becomes about 35 seconds at the negative. For most outdoor handheld work the threshold never comes up. For long-exposure landscape on slide, Velvia 50 or Provia 100F remain the standard answers. Surviving rolls show base fog and color shifts after two decades.