Altered images - New visionaries in 21st century photography

They used to say that '"the camera never lies". The next generation may find that difficult to believe. Photography has come full circle, from the 19th century obsession with realism, to the 21st century addiction to hyper-reality. Opportunities for artists have multiplied just as the problems have proliferated. As ever, theory runs to catch up with practice. The images collected here put strain on the old definitions and demand new ones.
What are they ? Well, they are hot, strictly speaking, photographs anymore. New territory needs new maps.