SIRUI 40mm T1.8 1.33X S35 AF Lens for Nikon Z - Blue Flare

Name: SIRUI 40mm T1.8 1.33X S35 AF Lens for Nikon Z - Blue Flare
Brand: Sirui
SKU: talkj74nfa
Availability: InStock

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

Best current price£735.14from OnBuy.com

Best offers

Shopping.co.uk recommended and popular offers

Lowest price

OnBuy.com£735.14Visit shop

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

Visit shop

All Offers

9 offers from £735.14 - £759.00

View price history by clicking the chart icon.

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

Free delivery in 1–3 days

£735.14

Visit shop

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

Free delivery in 1–3 days

£759.00

Visit shop

Product Information

Full details

The SIRUI 40mm T1.8 1.33X S35 Autofocus Lens is designed for filmmakers seeking to achieve a cinematic widescreen look with the ease of autofocus. Its key benefit is the professional anamorphic compression in a compact, lightweight package, ideal for run-and-gun shooting. A potential caveat is that achieving the signature bokeh requires specific aperture settings (T2.4 for classic anamorphic). This lens offers a fast T1.8 aperture for low-light performance, precise autofocus, and interchangeable blue/neutral flare options, all within a durable yet portable design.

All features

Brand	Sirui

Extended Product Information

FAQs

What is the main advantage of using an anamorphic lens like this?

The primary advantage is achieving a wider, cinematic 2.35:1 aspect ratio with a distinct oval bokeh and horizontal lens flares, giving footage a characteristic cinematic look. This lens also adds autofocus capability to that anamorphic style.

Can I use this lens on a full-frame camera?

Yes, you can use it on full-frame cameras, but it's designed for S35 sensors. You'll likely need to shoot in crop mode or accept heavy vignetting, depending on the camera and desired aspect ratio.

How do I switch between the blue and neutral flares?

The method for switching flares can vary; consult the specific product manual for your lens model. It often involves a specific component or setting on the lens barrel.

What is the difference between T1.8 and f/1.8?

T-stop (T1.8) measures the actual amount of light transmitted through the lens, which is more accurate for exposure control, especially with complex lenses like anamorphics. f-stop is a theoretical measure. T1.8 indicates a faster effective aperture than f/1.8.

Does the autofocus work for stills photography as well as video?

Yes, the autofocus system is designed to support both video and still photography, providing fast and accurate focusing for either application.

What is 'focus breathing' and how does this lens handle it?

Focus breathing is the phenomenon where the field of view changes slightly as you adjust focus. This lens features a precision optical design that minimizes focus breathing, resulting in a more stable image when racking focus.

What type of anamorphic bokeh does this lens produce?

At T1.8, it produces hexagonal elliptical bokeh. At T2.4, it produces the classic 1.33x anamorphic oval bokeh.

Troubleshooting

Autofocus is slow or inaccurate.

Ensure your camera firmware is up-to-date. Check that the camera's autofocus settings are optimized for the lens and the subject. Clean the lens contacts on both the lens and the camera body.

Image appears distorted or has excessive aberrations.

Verify that the lens is properly seated on the camera mount. Ensure you are using the lens within its intended S35 format parameters. Check for any physical damage to the lens elements.

Lens is not recognized by the camera.

Remove and reattach the lens securely. Clean the electrical contacts on both the lens and camera mount. Try the lens on a different compatible camera body if possible.

Lens produces unwanted flare.

Ensure the lens hood is attached if applicable. If using a specific flare option (blue/neutral), ensure it's correctly installed as per the manual. Consider your lighting conditions; anamorphic lenses are prone to flaring.

Pros and Cons

Pros

Delivers a true cinematic widescreen 2.35:1 aspect ratio.
Excellent low-light performance thanks to the T1.8 aperture.
Autofocus system is fast and accurate, aiding efficient shooting.
Lightweight and compact for easy handling and portability.
Provides creative flexibility with interchangeable flare options.
Superior optical quality with minimal distortion and chromatic aberration.

Cons

Signature anamorphic bokeh is achieved at T2.4, not at the maximum T1.8 aperture.
Primarily designed for S35 sensors, results may vary on full-frame cameras.
Autofocus performance can be dependent on the camera body's capabilities.
Lens mount specific (this guide is for Nikon Z mount).

Setup, Compatibility & Care

Compatibility:

This specific variant is designed for Nikon Z mount cameras. Ensure your camera body supports this mount. While primarily optimized for S35 sensors, it can be used on full-frame cameras, but be aware of potential vignetting or cropping requirements depending on your shooting mode.

Setup:

Gently attach the lens to your Nikon Z camera body, aligning the mount indicators.
Select your desired shooting mode (e.g., 16:9 for 2.35:1 output).
Choose between the blue or neutral flare option by referencing the lens's manual for the specific mechanism (this may vary by sub-model).
Set your desired aperture (T-stop) and focus mode (autofocus or manual).

Care:

Cleaning: Use a soft, lint-free microfiber cloth to clean the lens elements. For stubborn smudges, use a lens cleaning solution sparingly on the cloth, never directly on the lens.
Storage: Store the lens in its protective case or a padded camera bag when not in use. Avoid exposing it to extreme temperatures or humidity.
Handling: Always handle the lens by the body, not by the front element or filter threads. Use a lens hood when possible to protect against flare and physical impact.