Agfa Scala 200x

Scala 200x is the only black and white slide film any major manufacturer ever brought to market. Agfa introduced it in 1992 and ran it until the company unwound in 2005, sold in 35mm, 120, and 4x5 sheet. The chemistry was proprietary, called AP-44, and only a handful of licensed labs per country handled it. When the chemicals stopped, the processing network collapsed. Today dr5 Lab in Iowa is essentially the only operation still developing surviving rolls, using a substitute reversal process they built in-house.

The look is the reason people still hunt for it. A black and white transparency on a light table reads differently from a print or scanned negative. Highlights are luminous because they are clear film base rather than paper white, and shadows lock at a deep neutral no fiber print matches. Projected, it is closer to a Kodachrome experience than to anything photo paper can do. Architectural shooters used it for portfolio pieces because the perceived sharpness on a backlit slide outpaces a contact print.

Grain is tight, comparable to a slow conventional negative at the same speed, with the caveat that reversal processing makes underexposure unrecoverable. Two-thirds of a stop under and the shadows go solid black, no recovery. Meter incident when you can, and bracket if the scene is contrasty. Compared with Fomapan 100 cross-processed to positive, which some photographers tried as a substitute, Scala had finer grain.

Fresh stock no longer exists. Expired rolls turn up on eBay and at estate sales, and have aged better than most color materials of the same period. Some shooters process expired Scala as a conventional negative in D-76, giving up the slide for a panchromatic negative.

Reciprocity exponent is 1.10. Zone Light Meter applies the correction past one second. A metered 30-second exposure becomes about 35 seconds at the negative, a minor lift that matters more in principle than in result. For night work past a minute, bracket regardless. The reversal process punishes error in either direction.