description Rollei RPX 100 Overview
Rollei RPX 100 is a medium-speed, panchromatic black-and-white negative film sold under the Rollei brand for general photographic use. Rated at ISO 100, it is available in common formats including 35 mm and 120 roll film and can be processed with standard black-and-white developers. Its relatively low sensitivity suits daylight, studio, landscape, architectural, and other work where photographers can prioritize tonal detail and controlled grain over low-light speed.
help Rollei RPX 100 FAQ
What ISO is Rollei RPX 100, and is it color or black and white?
Rollei RPX 100 is a panchromatic black-and-white negative film rated ISO 100/21° in standard processing. It is intended for conventional black-and-white printing or scanning, not color photography. [B&H Photo](https://www.bhphotovideo.com/c/product/1062231-REG/rollei_agfa_811011_rollei_rpx_100_35x36.html)
Does Rollei RPX 100 come in both 35 mm and 120?
Yes. Rollei lists it in 35 mm and 120 roll film, and the common 35 mm version has 36 exposures. [Rollei](https://www.rollei.de/en/products/rpx-schwarzweiss-negativfilm)
What kind of negatives does RPX 100 produce?
Rollei describes a balance of fine grain, sharpness, broad tonal range, and wide exposure latitude. Its ISO 100 rating gives less light sensitivity than the same family's ISO 400 stock, so RPX 100 is better suited to brighter conditions or a tripod. [Rollei RPX 100 data sheet](https://www.rolleianalog.com/wp-content/uploads/2021/07/RPX100_Data-Sheet_EN_R210701.pdf)
Can I develop RPX 100 with standard black-and-white chemistry?
Yes, the film is designed for standard black-and-white chemistry, and Rollei publishes development tables including its SUPERGRAIN developer. The data sheet calls the times approximate, so match the time to the developer, dilution, temperature, and agitation you use. [Rollei RPX 100 data sheet](https://www.rolleianalog.com/wp-content/uploads/2021/07/RPX100_Data-Sheet_EN_R210701.pdf)
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