40mm T1.8 1.33X S35 AF Anamorphic Lens_Neutral Flare Sony E

Human-scale framing with a widescreen anamorphic look: 40 mm T1.8, 1.33x squeeze and STM autofocus for Super 35. Geared cine controls, Sony E mount and neutral flare.

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Nr. art.: 139579
Ven.art.nr.: 40AF133X-EN
EAN: 6952060075822

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The SIRUI 40 mm T1.8 1.33x autofocus anamorphic lens brings a cinematic widescreen perspective to Super 35 and APS-C production without giving up autofocus. The 40 mm view suits dialogue, documentary stories and portraits that retain environmental context; this Sony E version produces more restrained, natural-looking highlight streaks.

Anamorphic framing and flare

The constant 1.33x horizontal squeeze gives footage an approximately 2.35:1 aspect ratio after de-squeezing a 16:9 recording. The fast T1.8 aperture allows filming under available light and contributes to oval bokeh and subject separation. A minimum focusing distance of 0.60 m offers flexibility for foreground elements and detailed inserts.

Autofocus and manual cine control

An STM stepping motor enables autofocus and supported camera subject tracking, while an AF/MF switch allows a change to manual focusing. The 360° focus-ring rotation, cine-standard focus gearing and switchable click/de-click aperture control provide more deliberate operation for planned takes. A USB-C port supports lens firmware updates.

Optics and matched rigging

The optical design uses 16 elements in 12 groups, including five cylindrical elements and one aspherical element, with an 11-blade diaphragm. A shared 77 mm filter thread and matched focus-gear positions simplify swapping compatible lenses on a rig. This Sony E version measures approximately 123 mm in length and weighs 633 g without lens caps.