quattro sd

  1. Brian Moore

    Critique Welcomed Point:Counterpoint

    At the Women's March LA in January of this year. Sigma Quattro SD and Sigma 30/1.4.
  2. Brian Moore

    Critique Welcomed A Solar Boiler

    This is one of the three solar boilers at the Ivanpah Solar Power Plant in the Mojave Desert of California. Sigma Quatro SD.
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