Sirui 40mm T1.8 S35 Anamorphot 1.33x Neutral

Sony E, APS-C / DX
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Product details

The SIRUI 40AF 133X-EN is a compact autofocus anamorphic lens specifically designed for Sony E-Mount cameras. Weighing just 632 g and featuring a focal length of 40 mm (equivalent to 42 mm in full frame), it is ideal for a variety of photographic applications, including street, landscape, and portrait photography. The lens offers a constant squeeze factor of 1.33x, allowing for an impressive widescreen aspect ratio of 2.35:1. This gives the shots a cinematic look, complemented by oval bokeh and precise color reproduction. The integrated STM stepper motor ensures fast and accurate autofocus, significantly simplifying the creation of anamorphic film footage. With a convenient AF/MF switch, users can easily toggle between autofocus and manual focus as needed, enhancing flexibility in filming and photography.

  • Lightweight and compact design at just 632 g
  • Constant squeeze factor of 1.33x for cinematic shots
  • Integrated STM stepper motor for fast and precise autofocus
  • AF/MF switch for flexible focusing
  • Ideal for humanistic photography and landscape shots.

Key specifications

Sensor compatibility
APS-C / DX
Weight
623 g
Focus type
Autofocus, Manual focus
Lens type
Normal Lens
Bayonet lens mount
Sony E
Focal length
40 mm
Item number
54202200

General information

Manufacturer
Sirui
Category
Lenses
Manufacturer no.
11-03-01-000182
Release date
24.1.2025

Camera lens properties

Lens type
Normal Lens
Bayonet lens mount
Sony E
Aperture
1.80 f/
Min. aperture
22 f/
Max. Focal length (exact)
42 mm
Focal length
40 mm
Sensor compatibility
APS-C / DX
Number of lenses
6
Number of lens groups
12
Focus type
Autofocus, Manual focus

Voluntary climate contribution

CO₂-Emission
Climate contribution

Product dimensions

Weight
623 g

30-day right of return
6 years Warranty (Bring-in)

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Reviews & Ratings

Warranty score

How often does a product of this brand in the «Lenses» category have a defect within the first 24 months?

Source: Digitec Galaxus
  • 9.Olympus
    0.7 %
  • 10.TTArtisan
    0.8 %
  • 11.Sirui
    0.9 %
  • 12.Tamron
    1 %
  • 12.Viltrox
    1 %

Warranty case duration

How many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?

Source: Digitec Galaxus
  • Sirui
    Not enough data
  • 1.Viltrox
    2 days
  • 2.TTArtisan
    3 days
  • 3.Sigma
    4 days
  • 4.Sony
    7 days

Return rate

How often is a product of this brand in the «Lenses» category returned?

Source: Digitec Galaxus
  • 8.OM System
    6.6 %
  • 9.TTArtisan
    7.1 %
  • 10.Sirui
    8.2 %
  • 11.Laowa
    8.3 %
  • 11.Viltrox
    8.3 %
Source: Digitec Galaxus