Lomography Potsdam Kino 100

Potsdam Kino 100 is the slower companion to Berlin Kino in Lomography's ORWO lineup. The underlying emulsion is ORWO UN54, a fine-grain cinema negative from the Filmotec facility in Wolfen. Where N74 Plus was designed for the speed needs of motion picture production, UN54 is a finer-grain stock intended for applications where resolution and tonal smoothness matter more than sensitivity.

At ISO 100, the grain is noticeably finer than Berlin Kino 400. It does not disappear the way Delta 100 grain disappears, but it is tight and does not dominate the image. The grain clusters are smaller and more evenly distributed than the salt-and-pepper texture of N74. In medium-contrast scenes, the tonality is smooth enough to handle portraiture work without looking grainy at standard print sizes.

UN54 is a panchromatic medium-speed cine camera negative coated at the historic Wolfen plant, where motion picture stocks have been produced since 1910. It was designed for picture origination rather than for high-speed news work, which is why the curve sits long and gentle and the rolls behave consistently from batch to batch.

The tonal rendering is particularly good in overcast light. Diffuse daylight gives smooth, separated tones from shadows through highlights. Hard direct sun can create blocked highlights if exposure is not conservative, but the latitude on the shadow end is generous.

UN54 also forms the base emulsion for Lomography's Potsdam Kino 120, sold alongside the 35mm version for medium format shooters.

Reciprocity exponent is 1.31, identical to Berlin Kino and other classic cinema-derived black-and-white stocks. Zone Light Meter applies the correction past one second. Given that Potsdam 100 is frequently used on a tripod for detail and landscape work, the reciprocity correction is a practical concern rather than an edge case.