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Sigma 40mm F1.4 ART Review
MirrorlessReports Admin

Sigma 40mm F1.4 ART Review

Dustin Abbott has released his review on the Sigma 40mm F1.4 ART lens which is available for both the Sony E mount, and the L-mount.  If you want to use an adapter, you can basically get a DSLR version of this lens and use it on any mirrorless camera.

This lens is one of the 'modified" lenses from the DSLR area of ART lenses, however, Dustin, tests this lens with an expectation of using the lens on a mirrorless camera body.


  • Extremely sharp across the frame
  • Excellent contrast
  • Fast, quiet autofocus
  • Excellent chromatic aberration control
  • Low distortion
  • Fairly good flare control for a wide aperture prime
  • Nice bokeh
  • Good build quality and weather sealing
  • Works well on mirrorless cameras tested on


  • No other 40mm lens comes close to the size and weight of this lens
  • Sigma’s prices are creeping up
  • Expect a little clicking and whirring if using video AF


If your shooting style involved either shooting in a studio (where you aren’t packing a lot of gear), or if you like to use one or two focal lengths and can afford to take on some extra size as a tradeoff, then the Sigma 40mm F1.4 ART joins the 28mm F1.4 and 100mm F1.4 ART lenses as an unconventional trinity of some of Sigma’s most exceptional lens.  I would personally choose this trio over their 35/50/85mm trio any day of the week for sheer optical performance.  Sigma seems to have unlocked some extra “specialness” in these lenses that sets them apart, though, to be fair, they are also more expensive than the other trio.  Deservedly so, though, as these are fantastic lenses and have been among my favorite lenses that Sigma has ever made…despite their size.

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