Cross Processing is a technique that deliberately processes a type of film in chemicals that are intended for another film type. Originally, the technique was probably discovered by accident, but unusual and surreal effects can be achieved that give heavy red, green or blue bias to the results. It is easy to simulate the effects digitally by adjusting the RGB channels, saturation and contrast in image manipulation packages, although some of them come with a cross processing filter to achieve the results quicker. Like the Bleach Bypass process, not all images are suitable for this style of working, so experimentation is key.

In the film era the bleach bypass method of processing colour film (as the technique suggests) skipped the bleaching phase. Bleaching removes the silver content from the emulsion, therefore bypassing it caused the silver to remain. This resulted in an image with reduced saturation but increased grain and contrast. The result can be achieved digitally and far more simply – many image manipulation software packages provide a filter that mimics the process, although time should be spent adjusting various levels to produce a satisfactory result…and not all types of images are suitable for this treatment.

Sepia toning is a popular method of modifying a black and white image giving it a dated look. Due to its popularity many digital cameras and image manipulation packages have built in filters to reproduce the effect. Colour images can also be sepia toned giving them a warmer feel. The images shown here have undergone black and white mixing across the colour spectrum to achieve a Sepia result.

I am sure all photographers amass a whole bunch of images that elude categorisation and form a body of unspecific, undefined lost souls, doomed to haunt the edges of beautifully labelled image libraries. We occasionally review our collections, exorcising them of such misfits and dumping them into our ‘Odd Sock’ collection. Not good enough to stand alone but just the right side of the delete key, we present to you 2012’s Odd Socks.