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The Sirui 40mm T1.8 1.33x is a Super 35 anamorphic prime that squeezes a 1.33x widescreen image onto the sensor, giving 2.4:1 footage on a 16:9 camera. It is a manual-focus, geared cine lens with a T1.8 maximum aperture, a 10-blade iris and Sirui's blue flare coating. It suits indie filmmakers and music video shooters who want anamorphic oval bokeh and horizontal flares without renting cinema glass. Against Sirui's own 50mm and 75mm anamorphics it is the wider option, and against Sony or Cooke anamorphics it is far simpler and lighter, with manual focus only and no electronics. Owners praise the build and flare character for the money but note softness wide open and heavy focus breathing.
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Lowest price we've seen: $599.00 on Nov 11 at Adorama. Tracked across 2 stores since Nov 11.
Reviewers treat the Sirui 40mm as a character lens: they like the anamorphic look, the build and the fast aperture for the money, but warn about softness wide open and heavy breathing. Most say it rewards stopping down and planning shots around its flare.
This is the Blue Flare version.
It is available in Sony E and L-Mount versions. The lens has autofocus and no image stabilization.
