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  1. S

    Sigma 500mm F4

    Neil Find DP Review's website and in the Third Party Lens forum. There have been several threads with pictures and links to other galleries with this lens. Yes when you pixel peep at 100% there is a difference plus you get better low light and auto-focus performance. Steve
  2. S

    Sigma 500mm F4

    Look at the blog on Brad Hills "Natural Are Images" He did a very in depth test of the Sigma against the new Nikon and he kept the Sigma. He leds small group Photo tours thru some wild country in British Columbia and the Yukon. Good read Steve
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