Photographic processor comprising 2 entry points and a sensor

A modification to a photographic processor which comprises a first entry point and a second cassette 24 that can be linked to the second entry point of a photographic processor, such as a test strip feed slot 18. A light tight adaptor 43 links the cassette to the processing machine. The cassette is used to store a photosensitive material of a different format to that normally used in the machine. A sensor (72, Fig 5) is used to monitor the amount of material that passes through the second entry point, allowing the replenishment of the processing chemicals to be based on the total area of material processed. A second sensor 80 monitors marks on the processed web which indicate where cutting is required.