# SIRUI 40mm T1.8 1.33X Anamorphic Lens for Z Mount \(S35\) with Autofocus

SIRUI 40mm T1.8 1.33X Anamorphic Lens for Z Mount offers autofocus, two flare options, and a lightweight S35 option—ideal for cinematic, mobile.

- [Original product page](https://www.ofertitastop.com/uk/product/sirui-40mm-t1-33x-anamorphic-lens-1)
- [View offer](https://www.ofertitastop.com/uk/visit/sirui-40mm-t1-33x-anamorphic-lens-1)
- Market: UK
- Language: en-GB
- Currency: GBP
- Product updated: 2026-08-04T15:28:31.769Z
- SKU: ofertitastop-uk-121491
- Category: Cameras & Optics > Camera & Optic Accessories > Camera & Video Camera Lenses > Video Camera Lenses
- Source store: amazon UK
- Active deal: No
- Rating: 4.4 / 5
- Reviews: 56

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## Description

## What it is and who it’s for
The SIRUI 40mm T1.8 1.33X Anamorphic Lens is a compact S35-format prime designed for Z-mount mirrorless cameras. It offers a dedicated autofocus system and a 1.33x anamorphic squeeze, aimed at creators who want a cinematic look without swapping lenses. If you’re filming on Z5, Z50, Z6/6II, Z7/7II, ZFC, Z8 or Z9, and you value a fast aperture for shallow depth of field, this lens can be a practical addition to your kit.

## Autofocus and handling
Accurate Autofocus System — The lens includes an enhanced STM motor to deliver fast and precise autofocus, with support for eye detection and subject tracking. For run-and-gun shoots or solo filmmaking, that can translate into fewer missed takes and more time capturing scenes.

## Visual style and flare options
Blue and Neutral Flares — Two flare options give you control over the frame’s celestial look. The 1.33x anamorphic character introduces characteristic horizontal compression and subtle streaks, bringing a cinematic, slightly dreamlike quality to your footage. It’s not an effect for every project, but it can help you stand out when the mood calls for it.

## Build and practicality
Compact and Lightweight — Weighing about 614 g (1.35 lb), it’s practical for handheld or gimbal work and can slot into a smaller rig when mobility matters.

Enhanced Low-Light Performance — The T1.8 aperture improves light capture and depth of field control, which supports handheld shooting in less-than-ideal lighting and helps isolate subjects with softer backgrounds.

## What it’s good at, and what it isn’t
For projects that prioritise a cinematic texture with controlled flare and a shallow depth of field, this lens offers a straightforward route to that look, especially when you want an anamorphic perspective without buying into a larger, heavier system. If you’re after ultra-wide compression or a non-anamorphic aesthetic, this lens won’t be the best fit. It’s also not a substitute for high-end manual focus work in extreme macro scenarios.

## Who this is for
- Filmmakers who use Z-mount cameras and want an anamorphic look with autofocus.
- Run-and-gun shooters who benefit from a light, compact package and reliable eye-tracking focus.
- Creators seeking atmospheric flares to add character to scenes without extra post-processing.

## When it makes sense to buy
- You need convenient autofocus on an anamorphic lens for S35 projects.
- You’re building a mobile setup and want a relatively light lens that still delivers cinematic depth.
- Your work can benefit from optional blue or neutral flare in the frame.

## When you might want to reconsider
- If you prioritise the fastest possible manual focus control or extreme optical sharpness at very close distances, a different option might be preferable.
- If you require a more compact or heavier telephoto style, or if you’re not using Z Mount cameras, compatibility and availability of lenses may influence the decision.

## What to check before buying
- Confirm that your camera supports autofocus performance you expect with this lens and that you’re comfortable with a 1.33x anamorphic squeeze on S35.
- Consider your typical shooting conditions: the T1.8 aperture helps in low light, but working with anamorphic compression changes framing dynamics and post-crop work.
- Evaluate whether you want blue or neutral flares as a creative element for your typical projects.

## Practical example of use
Imagine handheld interviews or documentary scenes where you want a cinematic edge without a bulky setup. The autofocus helps keep subjects in focus as you move, while the anamorphic look adds a gentle horizontal stretch and the chosen flare can give the shot a distinctive, understated atmosphere.

## FAQ
- Q: Does the lens autofocus on all Z mount cameras? A: It uses an advanced autofocus system with eye tracking, designed to work with Z-mount bodies listed in the product notes.
- Q: What kind of flare options are available? A: There are blue and neutral flare options to choose from depending on the mood you want.
- Q: How heavy is the lens? A: Approximately 614 g (1.35 lb), which is relatively light for an anamorphic S35 lens.
- Q: Is this lens suitable for low-light scenes? A: The T1.8 aperture supports better low-light performance and depth of field control compared with slower lenses.

## Decision point
Is it worth it? Worth considering if you prioritise autofocus-enabled anamorphic shooting on a Z-mount system and want a balance between portability and cinematic character.

## Images

![SIRUI 40mm T1.8 1.33X Anamorphic Lens for Z Mount \(S35\) with Autofocus — 1](https://www.ofertitastop.com/i/IHkKH5fODFR7PPUOF4IuzJ1dTQXwjgVsZdbr-Yhzo3yIZZq16ddRN9mqIqZAsDux9TdGR57NjJ63DnxAfQbcRn6Ju0jIHmwtv8SQ9g4R4kEfjq6w_b8-u7CDUg.jpg)

![SIRUI 40mm T1.8 1.33X Anamorphic Lens for Z Mount \(S35\) with Autofocus — 2](https://www.ofertitastop.com/i/_-cTbG-2q44I1IBHcqoUVIFPVf_RGTusfWcF8DV49iVNcUnA7oMjWuGRZQPFkZKcRUwjNY0vQ3AL_sfrsuOV6Bbqf3INA7Gu1nRup-lEhGjcc0aLnAl95gA67Q.jpg)

![SIRUI 40mm T1.8 1.33X Anamorphic Lens for Z Mount \(S35\) with Autofocus — 3](https://www.ofertitastop.com/i/KbhvOf2-3VDhv6wZrju2kg65PWjR4Ak-4sY4jc9eUR9xQZuwo7QKta_vdb4UeP1-tRFUr2U9LY-lVSzjSgc7Jw88rbM-2Vwc8wSTYaFOcb3rmPxZAaFmrd06rQ.jpg)

![SIRUI 40mm T1.8 1.33X Anamorphic Lens for Z Mount \(S35\) with Autofocus — 4](https://www.ofertitastop.com/i/e_1FJrGBb3Z_qRRyxNCB9JwMoTdZtW1Zs1YT0Ga_wH4Vwc7U35rIVteIacIU3ny8CsLwVTAc_KSCN_ySVN7kS9aUkEdRPplM3OPCpo2PCasCjZGXAo9AbrFAyA.jpg)

![SIRUI 40mm T1.8 1.33X Anamorphic Lens for Z Mount \(S35\) with Autofocus — 5](https://www.ofertitastop.com/i/3T_1LPebsPyT_I320ipEoNXMSi1Hf50-zUt778DirKavrK5ddCcsmWgHxFEuEFX21vIG5JlqKOd8MdIIVXfdp_VClZcesOcuwRG5VY8eVrES6tca-PK8xFBJig.jpg)