SIRUI 40mm T1.8 1.33X S35 Autofocus Anamorphic Lens - Neutral Flare

Name: SIRUI 40mm T1.8 1.33X S35 Autofocus Anamorphic Lens - Neutral Flare
Brand: Sirui
SKU: ilkymgtmxc
Availability: InStock

The SIRUI 40mm T1.8 1.33X S35 Autofocus Anamorphic Lens delivers cinematic quality in a compact, l...

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Sirui 40Mm T1.8 1.33X Anamorphic Lens, S35 Autofocus Lens For L Mount Cameras, Dc-S5/S5m2, Dc-S1/S1h/S1r, Dc-S9, Sl1, Cl, Fp, Fpl ( Flare) Blue 6952060077598

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OnBuy.comSirui 40Mm T1.8 1.33X Anamorphic Lens, S35 Autofocus Lens For L Mount Cameras, Dc-S5/S5m2, Dc-S1/S1h/S1r, Dc-S9, Sl1, Cl, Fp, Fpl ( Flare) Blue 6952060077598

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£735.14

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Wex Photo VideoSirui 40mm T1.8 1.33X S35 Autofocus Anamorphic Lens

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Product Information

Full details

This SIRUI 40mm T1.8 1.33X S35 Autofocus Anamorphic Lens is designed for filmmakers seeking to achieve a distinct cinematic look with the ease of autofocus. Its key benefit is the professional anamorphic widescreen (2.35:1) image quality in a compact, lightweight package, coupled with rapid autofocus for run-and-gun shooting. A potential caveat is the specific S35 sensor coverage, requiring users to be aware of their camera's sensor size for optimal results.

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Brand	Sirui

Extended Product Information

FAQs

What does the 1.33x squeeze factor mean for my footage?

The 1.33x squeeze factor means that when you shoot in a standard 16:9 aspect ratio, the resulting image will de-squeeze to a 2.35:1 widescreen cinematic aspect ratio, providing a wider field of view with characteristic anamorphic oval bokeh and light streaks.

Is this lens suitable for full-frame cameras?

This lens is designed for S35 (Super 35) format sensors. While it may cover full-frame sensors, you will likely experience significant vignetting or the need to crop the image to achieve the intended 2.35:1 aspect ratio, losing some of the lens's benefits.

How do I switch between blue and neutral flares?

The lens is offered in 'Blue Flare' or 'Neutral Flare' variants. You choose the desired flare type at the time of purchase; the flare type is fixed for each lens.

Can I use this lens for both video and stills?

Yes, the lens supports both manual and autofocus, and features a de-clickable aperture ring for smooth video adjustments, as well as a clicked option suitable for still photography.

What is the benefit of the STM autofocus motor?

The STM motor provides fast, precise, and quiet autofocus, including features like subject tracking and eye-AF. This is particularly beneficial for solo videographers and run-and-gun shooting scenarios, saving time and effort compared to manual focus anamorphic lenses.

How do I clean the lens elements?

Use a soft, lint-free microfiber cloth. Start from the center and wipe outwards in a circular motion. For stubborn smudges, use a lens cleaning solution sparingly on the cloth, not directly on the lens.

What is the minimum focusing distance?

The product information does not specify the minimum focusing distance, but it is suitable for portrait and detail shots, as well as close-up shooting.

Troubleshooting

Autofocus is not engaging or is slow.

Ensure the AF/MF switch on the lens is set to 'AF'. Check that the lens's electronic contacts are clean. Update the lens firmware if available via the Type-C port. Verify camera compatibility and ensure the camera firmware is up-to-date.

Aperture not adjusting smoothly.

Confirm that the click/de-click switch is set to 'De-click' for stepless aperture control. If the issue persists, the aperture mechanism may require professional servicing.

Image appears distorted or has chromatic aberration.

While the lens is designed to minimize these, check that the lens elements are clean. Ensure you are using the lens within its intended S35 coverage. For severe issues, professional inspection may be needed.

Lens is not recognized by the camera.

Clean the lens and camera mount contacts. Try reseating the lens on the camera body. Test with a different compatible camera body if possible to isolate the issue. Update lens firmware.

Pros and Cons

Pros

Enables true 2.35:1 widescreen cinematic aspect ratio.
Fast T1.8 aperture excels in low-light scenarios.
Autofocus functionality significantly aids run-and-gun filmmaking.
Compact and lightweight, improving usability on various rigs.
Offers creative flare options (Blue/Neutral) for stylistic enhancement.
Versatile bokeh rendering at different apertures.

Cons

Designed specifically for S35 sensors, may not be ideal for full-frame cameras without cropping.
Autofocus performance may vary depending on camera body and firmware.
Anamorphic characteristics (like light oval bokeh) might require specific editing workflows.
Requires users to understand lens mechanics for optimal anamorphic shooting.

Setup, Compatibility & Care

This lens is designed with common camera mounts in mind, including native E, X, Z, and MFT mounts. Ensure your camera body is compatible with one of these mount types. The lens features an AF/MF switch for easy transition between autofocus and manual focus modes, and a click/de-click switch for aperture control, allowing for stepless adjustments for video. Firmware updates can be managed via the Type-C USB port. For optimal image quality, keep the lens elements clean using a soft, lint-free microfiber cloth. Avoid touching the glass directly. When not in use, store the lens in its protective case. The front of the lens has a 77mm filter thread and an 80mm outer front diameter, making it compatible with most standard matte boxes and filters. Regular cleaning of the electronic contacts can ensure reliable communication with your camera body.