Sirui 50mm F1.8 Anamorphic 1.33X Lens - MFT Mount

SiruiSKU: 6952060011455

Sale price£369.00 Regular price£426.00

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Product Description

Sirui 50mm F1.8 Anamorphic 1.33X Lens - MFT Mount


  • 33% wider field of view than conventional 50mm lenses corresponds to a field of view of 37.5 mm
  • Creates cinematic effects such as horizontal sci-fi reflections, impressive light effects and an oval bokeh
  • Durable yet lightweight design made from high-quality aviation aluminium alloy and German made Scottish glass elements
  • Focal length: 50 mm (KB equivalent 75 mm), aperture: f/1.8 - f/16
  • Close focus limit: 0.85 m to infinity Focusing: manual Sensor cover: up to


Cinematize your shots!
Compared to a traditional 50mm APS-C lens, the new SIRUI 50mm F1.8 camera lens enlarges your horizontal field of view by up to 33% to achieve a FOV equivalent of an APS-C 37.5mm lens. Affordable and durable, the F1.8 camera lens with an aluminium enclosure is robust yet lightweight and creates cinematic widescreen shots.

Dynamic Cinematic 2.4:1 Videos
After de-squeezed, the 50mm F1.8 camera lens produces smooth Cinematic 2.4:1 videos in a 16:9 setting.

Distinct Sci-Fi Horizontal Flares
Built with a precision optical structure and multi-layer Nano coatings, our 50mm 1.33x Anamorphic camera lens will produce horizontal blue streaks with less stray light to deliver unique Sci-Fi brushed and backlighting effects which can be a challenge for normal lenses and post-editing applications to achieve.

Oval Bokeh Effect
Create your own Cinematic Art with a simple turn of the F1.8 lens aperture ring to optimize the depth of field and bokeh effect.

Innovative Optical Structure
Designed for cinematographers for its unique visual characteristics, this lightweight lens is manufactured with German Manufactured Schott optical glass lens elements to create ultra-wide rectangular aspect ratios, long horizontal lens flares, and oval bokeh.

Quality Compact Fit
Robust and built with aircraft aluminium alloy and high precision CNC process, this high-quality portable camera lens only weighs approximately 560g/1.23lbs and is ready to fit onto a selection of lens mounts.

Superior Imaging Quality
Manufactured with high-quality German Schott optical glass lens elements, the anamorphic lens perfectly controls optical distortion and focal range to generate superior cinematic imaging.

Designed with an innovative optical lens structure to produce unique visual characteristics, the lens will also provide sharp, high resolution images.

Smoothly turn the precision copper focus adjustment to capture high quality images.

Optimum Depth Of Field With The F1.8
Gradually turn the F1.8 aperture ring with ten aperture blades to customize the light and optimize the depth of view within the 50mm focal length whether in a high or low light environment.

The very first affordable anamorphous lens for everyone for widescreen movies in cinema format 2.4:1

Colour Black
Diameter 68.2mm
Diaphragm Blades 10
Filter Size (Circular) 67mm
Fixed Focal Length 50
Focus Type Manual Focus
Image Stabilizer No
Length 106.6mm
Lens Elements/Groups 11/8
Lens Format Coverage APS-C
Lens/Camera Mount MFT Mount
Maximum Aperture 1.8
Maximum Magnification 1:15,38 (V), 1:20,17 (H)
Minimum Aperture 16
Minimum Focus 85
Weight 560g

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Understanding: Aperture

Aperture is the opening in a camera lens that controls how much light enters the camera. It's measured in f-stops like f/2.8 or f/8. Lower f-stop numbers mean wider openings, letting in more light and creating a shallow depth of field (blurry background). Higher f-stop numbers mean smaller openings, letting in less light and creating a larger depth of field (more of the scene in focus). Aperture also affects the quality of out-of-focus areas in the image (bokeh).

Understanding: Lens Types

Different lenses have different purposes to achieve different styles of images, some popular ones include:
Prime Lens: Fixed focal length, sharp images, great for portraits and dark settings.
Zoom Lens: Variable focal length, versatile for different shots and everyday use..
Wide-Angle Lens: Captures wide scenes like landscapes.
Telephoto Lens: Magnifies distant subjects, ideal for sports & wildlife.
Macro Lens: Perfect for close-up photography of small subjects.
Fisheye Lens: Ultra-wide perspective, creates unique images.

Understanding: Lens Mounts

Different camera brands use different lens mounts, which are like connectors that attach lenses to camera bodies. Each mount is specific to a particular brand and camera series. For example, Canon uses the EF and RF mounts, Nikon uses the F mount, Sony uses the E mount for its mirrorless cameras. These mounts dictate which lenses are compatible with which cameras. Some brands offer adapters to use lenses from other systems, but it's essential to ensure compatibility for proper functionality and autofocus performance.

Understanding: Manual and Autofocus

Manual focus and autofocus are two ways to adjust the sharpness of a camera lens. With manual focus, you turn a ring on the lens to bring the subject into focus yourself, giving you full control over what appears sharp in the image. Autofocus, on the other hand, relies on the camera's built-in technology to automatically adjust the focus for you, usually by detecting contrast or phase differences in the scene. Autofocus can be convenient, especially for fast-moving subjects or when you need to capture a quick shot, whereas manual focus allows for precise adjustments and creative control over the final image.

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