SIRUI 20mm T1.8 1.33X Anamorphic lens for E‑Mount

This 20mm anamorphic lens brings a wider cinematic frame and a fast aperture for low light shooting, ideal for narrative shorts and creative video. It works with Super 35 and APS-C sensors to capture expansive scenes while offering the characteristic horizontal flares that many filmmakers seek. If you shoot handheld or on gimbals, its compact weight helps keep setups agile and light.

Key Points

This lens combines a wide 20mm field of view with an anamorphic stretch factor that widens the perceived horizontal perspective, useful for landscapes and interiors. It features selectable autofocus and manual focus modes, with a precision stepping motor designed for smooth and quiet focusing which helps in run-and-gun situations and controlled studio shoots. The optical design includes two flare options, Blue and Neutral, so you can choose the cinematic streak that best suits the mood of the project. The large T1.8 aperture reduces the need for high ISO in lower light and allows tighter subject separation with pleasing bokeh. For mobility, the lens weighs around 480 g, making it feasible for gimbal use and extended handheld takes.

Technical Specifications

• Name: SIRUI 20mm T1.8 1.33X Anamorphic Lens
• Mount: E Mount compatibility listed for A6400, A6700, FX3/30, ZV-E series, A7 series, A9/9II
• Image circle: 37 mm, optimised for Super 35 / APS-C sensors
• Aperture: T1.8
• Anamorphic factor: 1.33x
• Weight: 480 g / 1.06 lb

Usage Recommendations

For documentary and narrative work, use the lens at T1.8 to maximise low light performance and to accentuate subject separation in interiors or night exteriors. When you want a stronger cinematic streak, select the Blue flare option for more pronounced colour in highlights, or choose the Neutral flare for subtler streaking that keeps skin tones steady. The autofocus system includes eye-tracking and an AF/MF switch, which makes quick transitions between subjects easier during run-and-gun shooting. 🎬

Consider that the 37 mm image circle is tailored to APS-C and Super 35 sensors. On full-frame cameras you may see vignetting or need to use crop modes to avoid edge artefacts. The lens is compact and well suited to handheld rigs and gimbals, but when paired with heavy camera bodies you should balance the setup carefully to maintain smooth stabilisation. ⚙️

The Best of This Model

The combination of a fast T1.8 aperture and a 1.33x anamorphic squeeze gives a filmic look with preserved light gathering, while the selectable Blue or Neutral flares let creators personalise the image character. SIRUI 20mm T1.8 1.33X Anamorphic Lens pairs versatile focusing modes with a form factor that supports both independent filmmakers and professional crews.