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Sirui 50mm f/1.8 Anamorphic 1.33x Lens (FUJIFILM X)

BH #SISRMEK7X • MFR #SRMEK7X
Sirui 50mm f/1.8 Anamorphic 1.33x Lens (FUJIFILM X)
Key Features
  • Robust Aluminum Lens for APS-C Cameras
  • 2.4:1 De-Squeezed Format; 10-Blade Iris
  • Schott Glass with Nano Coatings
  • Horizontal Blue Streaks/Less Stray Light
The Sirui 50mm f/1.8 Anamorphic 1.33x Lens, with an X-mount, is designed for APS-C cameras and increases the horizontal FOV by 33% in comparison with traditional 50mm APS-C lenses. The result is equivalent to a wider, 37.5mm APS-C lens. After a de-squeeze, the captured image is displayed in an anamorphic 2.4:1 format in a 16:9 setting. This fast f/1.8 lens is designed with an aluminum housing and features optics with multilayer Nano coatings. It has renowned Schott optical glass lens elements and delivers rectangular aspect ratios, long horizontal lens flares, and oval bokeh.
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Sirui 50mm F/1.8 Anamorphic Overview

The Sirui 50mm f/1.8 Anamorphic 1.33x Lens, with an X-mount, is designed for APS-C cameras and increases the horizontal FOV by 33% in comparison with traditional 50mm APS-C lenses. The result is equivalent to a wider, 37.5mm APS-C lens. After a de-squeeze, the captured image is displayed in an anamorphic 2.4:1 format in a 16:9 setting. This fast f/1.8 lens is designed with an aluminum housing and features optics with multilayer Nano coatings. It has renowned Schott optical glass lens elements and delivers rectangular aspect ratios, long horizontal lens flares, and oval bokeh.

One of the features of this lens is that it produces horizontal blue streaks with less stray light, which Sirui calls sci-fi horizontal flares. A key aspect of anamorphic lenses is highlighted oval bokeh, and this lens achieves a shallow depth of field and oval bokeh with its 10 aperture blades. While the lens has a robust housing, it's also designed to be lightweight for use with your compact APS-C camera.

Key Features
  • Robust lens with advanced optics for compact APS-C cameras
  • 33% horizontal field of view increase over standard 50mm APS-C lenses
  • Anamorphic 2.4:1 format in a 16:9 setting after de-squeeze
  • Aluminum housing
  • Schott optical glass
  • Multilayer Nano coatings
  • Horizontal blue streaks with less stray light
  • 10 aperture blades
  • 2.8' minimum focusing distance
  • 67mm filter thread
  • Magnification: 1:15.38 (V), 1:20.17 (H)

Sirui 50mm F/1.8 Anamorphic Specs

Focal Length
50mm
Lens Mount
FUJIFILM X
Lens Format Coverage
Super35/APS-C
Maximum Aperture
f/1.8
Minimum Aperture
f/16
Minimum Focus Distance
From : 33.5" / 85 cm
Optical Design
11 Elements in 8 Groups
Diaphragm Blades
10
Gear MOD & Pitch
Focus: 0.8 MOD / 32 Pitch
Iris: 0.8 MOD / 32 Pitch
Front Diameter
69 mm
Filter Thread
67 mm
Focus Rotation
143.6°
Horizontal Squeeze (Anamorphic)
1.33x
Image Stabilization
No
Length
4.2" / 106.6 mm
Weight
1.23 lb / 560 g
Packaging Info
Package Weight
1.845 lb
Box Dimensions (LxWxH)
6.7 x 4 x 3.8"

Sirui 50mm F/1.8 Anamorphic Reviews

See any errors on this page? Let us know

What is the focal length equivalent on a Fuji ...

What is the focal length equivalent on a Fuji camera?
Asked by: Robert
The focal length equivalent of the Sirui 50mm Anamorphic 1.33 Lens will be 38mm.
Answered by: Nicholas
Date published: 2022-11-02

Pardon my ignorance. Everything I've read about ...

Pardon my ignorance. Everything I've read about anamorphic says that 1.33 is not strong enough and that 2x is needed to get the true anamorphic feel. Now, you add the 16x9 aspect. So does the 1.33-1 lens provide a greater squeeze in the 16x9 aspect or is it still just a 1.33-1 squeeze?
Asked by: Jim
You will want 2x if your intention is to achieve more intense flares. But for the purpose of achieving a 2.40:1 ratio within a 16x9 frame, then the 1.33x will do just fine.
Answered by: Bruno
Date published: 2022-05-23

What is the focal length of the Surui 50mm with ...

What is the focal length of the Surui 50mm with the open gate 6.2k of the Fujifilm XH2s?
Asked by: Francisco
When recording with the Fuji XH2s the full sensor is used. There is a 1x5x crop with APS-C sensor so the Sirui 50mm lens would provide a 75mm view.
Answered by: Chris H
Date published: 2022-10-29

What is the width of the focus ring? I'm thinking ...

What is the width of the focus ring? I'm thinking of using Tilta Seamless Focus gear rings with this.
Asked by: Jason
The Sirui 50mm f/1.8 Anamorphic 1.33x Lens has a focus ring diameter of 2.72 / 69.2mm.
Answered by: Dennis L
Date published: 2021-11-04

What is the aspect ratio for this lens on the ...

What is the aspect ratio for this lens on the Fujifilm open gate 6.2k?
Asked by: Francisco
The Sirui 50mm f/1.8 Anamorphic 1.33x Lens (Fujifilm X-Mount) "is designed for APS-C cameras and increases the horizontal FOV by 33% in comparison with traditional 50mm APS-C lenses. The result is equivalent to a wider, 37.5mm APS-C lens. After a de-squeeze, the captured image is displayed in an anamorphic 2.4:1 format in a 16:9 setting."
Answered by: Paige K
Date published: 2022-09-20

I hear this lens has a blue color cast, will that ...

I hear this lens has a blue color cast, will that be a big issue if I use auto white balance?
Asked by: T
This lens produces very desirable anamorphic blue flares (streaks) These artifacts are utilized most famously by the director J.J. Abrams. It does not create an undesirable blue cast that covers the entire frame.
Answered by: Dennis L
Date published: 2021-07-05

What diameter is the focus ring? I want to get ...

What diameter is the focus ring? I want to get some smallrig gear rings and am not sure what size to get?
Asked by: Isaac
We recommend the Cool-Lux LuxGear Follow Focus Gear Ring (60 to 61.9mm) (BH #COLG6061 • MFR #951410)
Answered by: jabarih
Date published: 2021-08-25

Does this work with GH5?

Does this work with GH5?
Asked by: Amir
Yes it does.
Answered by: Najee
Date published: 2020-11-16
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