Sirui 40mm T1.8 1.33x S35 AF Anamorphic Lens (Micro Four Thirds, Neutral Flares)

Capture cinematic widescreen footage with the aid of an autofocus option using the Sirui Micro Four Thirds-mount 40mm T1.8 1.33x S35 AF Anamorphic Lens. This innovative prime lens uses an STM motor for fast, accurate autofocus while offering manual focus for more complicated shots handled by a camera assistant/focus puller. It produces neutral flares that are a classic feature of the anamorphic format and has a fast T1.8 maximum aperture lens that is ideal for low-light capture and for creating distinctive bokeh effects.

• This anamorphic prime lens has a 1.33x squeeze factor.
• It produces a widescreen 2.35:1 aspect ratio when shooting in a 16:9 mode.

• The autofocus feature now lets you capture anamorphic footage as quickly as when using spherical lenses.
• Select manual or autofocus using the switch on the lens.
• Use the AFL button to lock the autofocus or create a custom setting.

• One aspherical and five cylindrical elements contribute to the high optical quality of this lens.
• Focus breathing and chromatic aberration are well controlled.
• Supports EXIF metadata transfer and has a USB-C port for firmware upgrading.

• The maximum T1.8 aperture enables you to capture low-light scenes using lower camera ISO settings.
• Choose between stepped and stepless aperture settings for smooth exposure adjustments.
• Sharpness and optical quality are maintained even in night scenes.

• Shoot with a wide-open aperture to create a distinctive hexagonal bokeh.
• Stop down to get an oval bokeh that is typical of the anamorphic look.
• Create notable neutral flares that can be varied using different light sources.

• This all-around 40mm lens is ideal for portraits, landscapes, street scenes, and establishing shots.
• Horizontally equivalent to 42mm in full-frame format.

• This prime lens features a compact, lightweight design suitable for handheld and gimbal work.
• Cine-style features include an 80mm front outside diameter, standard 0.8 MOD gears, and wide 360° focus rotation.

Sirui 40mm T1.8 Anamorphic AF Specs

Focal Length	40mm
Maximum Aperture	T1.8
Lens Mount	Micro Four Thirds
Lens Format Coverage	Super35/APS-C
Filter Thread	77 mm x 0.75
Image Stabilization	No
Electronic Communication	Yes

Maximum Aperture	T1.8
Minimum Aperture	T22
Lens Mount	Micro Four Thirds
Interchangeable Mount	No
Horizontal Squeeze (Anamorphic)	1.33x
Flare Color	Neutral
Lens Format Coverage	Super35/APS-C
Image Circle	37.0 mm
Angle of View	Super 35 Horizontal: 55° Vertical: 25.4°
Optical Design	16 Elements in 12 Groups
Filter Thread	77 mm x 0.75
Minimum Focus Distance	1.97' / 60.05 cm
Maximum Magnification Ratio	Not Specified by Manufacturer
Aperture/Iris Blades	11
Image Stabilization	No
Gear Standard	: MOD : MOD
Gear Rotation	Focus: 360°
Electronic Communication	Yes
Camera Connection	Flat Contacts (EXIF) Data
Diameter	Front: 3.1" / 80 mm
Length	Not Specified by Manufacturer
Weight	1.4 lb / 614 g