Sigma lens acronyms and abbreviations meaning.

Sigma lens marking abbreviation

Sigma lenses are a bit different in the way they print the aperture on it, if they use the fraction "F". For example : F2.8 (there is no “ / “ after the F).


The usual compatible camera brands with Sigma lenses are:

  • Sigma.
  • Canon.
  • Nikon.
  • Minolta/Sony.
  • Pentax.
  • Kodak (very few).
  • Fujifilm.
  • Olympus (few).
  • Panasonic (very few).
  • Leica (very few).

Sigma lens acronyms for the quality and purpose.

  • A or Art: professional lenses, high end product, sophisticated optical performance.
  • C: Contemporary (compactness and cheaper products).
  • S: Sports (high quality zoom lenses).

The Main acronyms and abbreviations used by Sigma lens.

  • HSM: Hyper-Sonic Motor.
  • ASP: ASPherical element.
  • APO: APOchromatic (low dispersion) element.
  • OS: Optical Stabilizer.
  • RF: Rear Focusing.
  • IF: Inner Focusing.
  • CONV: Teleconverter compatible (APO Teleconverter EX).
  • EX: EXcellence (professional lenses, designation before 2012).
  • DG: for full-frame camera(35mm).
  • DC: for APS-C. cropped sensor camera.
  • Macro: Focus very near to the subject, but not necessary at a 1:1 ratio.
  • SLD: Special Low Dispersion (reduce the chromatic aberrations).
  • ELD: Extraordinary Low Dispersion (has lower dispersion characteristics than SLD).
  • FLD: "F" Low Dispersion glass in the highest level low dispersion glass available with extremely high light transmission, the F might meant to be comparable as the "Fluorite".
  • DN: Mirrorless camera.

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