Complex sentence: Fry's first picture using the collodion process was exhibited to the Society of Arts in 1851, and in the winter of 1852-3, Fry and the society held its first exhibition of photographs.
Split into simpler sentences: Fry's first picture using the collodion process was exhibited at a meeting of the Society of Arts in 1851. In the winter of 1852-3, Fry and the Society held its first exhibition of photographs.