Photography exhibitions in London

A tweet from a friend based in San Francisco sent me looking for photography exhibitions on in London at the moment, and the Guardian's Photography pages revealed the following gems:

• Persia: Paradise Lost, an exhibition of Georg Gerster's aerial photographs of Iran - Wilmotte Gallery at Lichfield Studios, London W10 (ends 20 May 2011) (Guardian article: Photographer Georg Gerster's best shot)
• Sony World Photography Awards 2011 winners - Somerset House (ends 22 May 2011)
• Hoppé Portraits: Society, Studio and Street - National Portrait Galley (ends 30 May 2011)

... plus a couple of relatively local exhibitions about London for later in the summer:

• This is Whitechapel - the Whitechapel Gallery (ends 04 September 2011)
• London Street Photography - the Museum of London (ends 04 September 2011)