This photo was taken with a Leica M4 and a Voiglander Nokton Classic 40mm F1.4. I must say this camera and lens are absolutely amazing. If you have the means of owning or using a M4 I highly recommend it. The color separations and sharpness, is spectacular.
In case you are wondering this is the Central Park Zoo. The actual location where Alex the Lion and the Penguins of Madagascar is featured.