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Showcase Sigma 39-80 f/3.5 Macro

Discussion in 'Adapted Lens Sample Image Showcase' started by Harvey Melvin Richards, Jun 27, 2014.

  1. Harvey Melvin Richards

    Harvey Melvin Richards Photo Posting Junkie

    Feb 15, 2014
    Southwest Utah
    These were taken with a Sigma 39-80 f/3.5 Macro that has an OM SLR mount. I would not recommend this lens. It's heavy and slow to operate. The focus only turns 1/4 of a full revolution. It has a zoom ring that rotates 10° more than the focus. It has a "reproduction ratio" ring that adjusts from normal to 1:9 to 1:3.5. I found that to achieve focus at other than infinity, I often needed to adjust all 3 rings.

     
  2. Harvey Melvin Richards

    Harvey Melvin Richards Photo Posting Junkie

    Feb 15, 2014
    Southwest Utah