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SIRUI 35mm Anamorphic Lens SR-35M
The SR-35M squeezes a 1.33x horizontal field of view, so it suits you if you need a 2.4:1 cinematic look.
35mm focal length
- Focal Length
- 35mm
- Maximum Aperture
- F1.8
- Squeeze Factor
- 1.33x
- Mount Type
- M4/3 Mount
Suits micro four thirds camera owners
- Micro Four Thirds camera owners
- Indie filmmakers on a budget
- YouTube content creators
- Student filmmakers
$132 under the category median
- This Cinema Lens
- $267
- Median of the 51 Cinema Lenses we screened
- $399
- Range
- $239 to $5498
- Cheaper than this one
- 1 of those 51
4.2/5 from 84 buyers
- Average buyer rating
- 4.2 out of 5
- Ratings behind it
- 84
- What that supports
- A large enough sample to read as a real buyer signal
- Where it comes from
- The product listing, read 7 November 2026
What the SIRUI SR-35M Is, and Who For
SIRUI 35mm Anamorphic Lens SR-35M captures a cinematic look for users who need an F1.8 aperture to shoot low-light indie scenes.
A 2.4:1 cinematic video aspect ratio provides the wide, horizontal field of view that defines the anamorphic look for professional productions. The SIRUI SR-35M achieves this specific ratio through a 1.33x squeeze factor, which compresses the image horizontally.
By utilizing the SIRUI SR-35M, you can capture a cinematic portrait with a blurry background while maintaining the characteristic squeeze of anamorphic glass. The lens is designed to weigh 1.55 pounds, making it a portable option for those working with M4/3 Mount systems.
We selected this product from 51 cinema lenses after it ranked as the 6th most-rated option with 84 buyer ratings. This review is for filmmakers seeking a compact anamorphic lens for M4/3 Mount cameras. Our comparison is based on a data-driven analysis of technical specifications.
How Review Expo picked: we started from the 135 most-reviewed cinema lens listings in our retail dataset, removed duplicates, accessories and off-category products, and 51 qualified. This product is one of 15 from that pool chosen for a full review. Our scores blend buyer satisfaction (60%), price position against comparable products (25%) and rating volume (15%). Specifications come from manufacturer listings and ratings from verified Amazon buyer reviews (data checked November 2026).
The Short Answer on the SIRUI SR-35M
Best for: you need to capture a wide-angle vlog in a small room or a cinematic portrait with a blurry background.
The SIRUI SR-35M is a practical choice for these tasks at the $267 mark.
- Pro: The F1.8 maximum aperture provides enough light for low-light indie scenes.
- Pro: The 1.33x squeeze factor creates a 2.4:1 cinematic video aspect ratio.
- Pro: It weighs 1.55 pounds, making it easy to handle for mobile cinematography.
- Con: The 35mm focal length provides the field of view of a 26.3mm camera lens, which may be too wide for some subjects.
- Con: The manual focus requirement means you cannot rely on automated tracking for moving subjects.
Don’t buy this if: you require a native PL mount, as this lens uses an M4/3 Mount.
Price assessment: The $267 price is low for an anamorphic lens that includes a 1.33x squeeze factor.
Review Expo score: 8.5/10 (data-driven – see “How we picked” above)
The Numbers on the Spec Sheet
| Focal Length | 35mm |
| Maximum Aperture | F1.8 |
| Squeeze Factor | 1.33x |
| Mount Type | M4/3 Mount |
| Focus Type | Manual Focus |
| Mount Compatibility | M4/3 Mount |
The 1.33x squeeze factor measures the ratio of the horizontal field of view to the vertical field of view.
Before You Buy: Cinema Lens Checklist
The first thing to check is the mount compatibility, as the SIRUI SR-35M requires an M4/3 Mount to physically attach to your camera body.
- ✓ Confirm the mount type — M4/3 Mount, or the lens will not attach to your camera body.
- ✓ Check the maximum aperture — F1.8, to ensure you can achieve the shallow depth of field required for a cinematic portrait.
- ✓ Verify the squeeze factor — 1.33x, which determines the horizontal field of view and the 2.4:1 cinematic video ratio.
- ✓ Measure the physical dimensions — 4 x 3 x 3 inches, to ensure the lens clears your camera grip and sensor.
- ✓ Check the weight — 1.55 pounds, to determine if your current gimbal or rig can support the additional mass.
You should not buy this cinema lens if you require a native PL Mount or a different squeeze factor than 1.33x.
Practical Performance Characteristics of this Cinema Lens
How a 1.33x squeeze factor provides a 26.3mm field of view
You might wonder if the 1.33x squeeze factor makes this lens behave like a 26mm or 35mm lens during a shoot. This specific squeeze factor provides a horizontal field of view equivalent to a 26.3mm lens while maintaining the 35mm focal length characteristics. It allows you to capture a wider 2.4:1 cinematic aspect ratio without moving the camera closer to your subject.
The SIRUI SR-35M provides the 1.33x squeeze factor required to produce the oval bokeh and horizontal stretching typical of anamorphic glass. Because the squeeze is fixed at 1.33x, you can plan your compositions knowing the horizontal expansion is consistent across the frame. This specific ratio enables a wide-angle vlog in a small room or a wide architectural shot without the need for additional glass.
How this movie camera lens produces adaptive star bursts
When shooting in low-light indie scenes, you need to know if the lens handles light streaks and star bursts well at wide apertures. The SIRUI SR-35M produces light streaks and star bursts that adapt to the aperture value, meaning the shape of the highlights changes as you stop down. This allows for predictable flare characteristics that are a defining trait of the anamorphic look.
The aperture range of F/1.8 to F/16 gives you control over how these light streaks appear in your footage. At the wider F/1.8 setting, the streaks are more pronounced, while closing the aperture refines the star burst shape. This functionality supports shooting a cinematic portrait with a blurry background while maintaining the specific aesthetic of anamorphic highlights.
Chromatic dispersion controls minimize color fringing on high-contrast edges
Chromatic dispersion refers to the color fringing that occurs on high-contrast edges when light passes through glass. The SIRUI SR-35M includes controls for chromatic dispersion to minimize these artifacts on the edges of your subjects. This helps maintain image clarity in high-contrast environments where color bleeding might otherwise occur.
By managing these color shifts, the SIRUI SR-35M helps ensure that the 2.4:1 cinematic video remains sharp across the frame. Effective dispersion control is necessary to prevent the fringing that cannot be fixed in post-production. This feature supports high-end commercial work where color accuracy and edge sharpness are required for a professional finish.
Common Buyer Jobs Checked Against the SIRUI SR-35M’s Specs
The SIRUI SR-35M against the jobs buyers ask about, worked out from its listed maximum aperture and a typical need for each job.
| Job | What it takes | SIRUI SR-35M |
|---|---|---|
| Shoot a cinematic portrait with a blurry background | no more than 1.2 to 2.8 f-stop | Only at the easier end of that range – 1.8 f-stop |
| Film a high-end commercial with anamorphic squeeze | no more than 1.4 to 2.8 f-stop | Only at the easier end of that range – 1.8 f-stop |
| Shoot a low-light indie scene | no more than 1.4 to 2 f-stop | Only at the easier end of that range – 1.8 f-stop |
| Capture a cinematic look on a compact camera | no more than 1.8 to 2.8 f-stop | Yes – 1.8 f-stop |
| Record a wide-angle vlog in a small room | no more than 2.8 to 4 f-stop | Yes – 1.8 f-stop |
Where the SIRUI SR-35M Sits Among the Alternatives
The SIRUI SR-35M provides the most affordable entry point for a 35mm cinema glass in this comparison at the $267 mark.
- The SIRUI SR-35M and the SIRUI 24mm Anamorphic Lens F2.8 1.33X match at the $267 price point.
- The SIRUI 75mm F1.8 1.33X Anamorphic Lens has a larger 75mm focal length than the 35mm on the SIRUI SR-35M.
- The SIRUI 50mm F1.8 Anamorphic MEK7M is $2 more expensive than the SIRUI SR-35M.
- The SIRUI 50mm F1.8 1.33X SR-MEK7E Anamorphic Lens is $19 more expensive than the SIRUI SR-35M.
If you require a wider field of view for architectural work, the SIRUI 24mm Anamorphic Lens F2.8 1.33X is the better choice for your setup.
Is the 1.33x squeeze enough to get that wide cinematic look?
The 1.33x squeeze factor provides a 2.4:1 cinematic aspect ratio, which is the standard for many modern wide-screen productions. Squeeze factor measures the ratio of the horizontal to vertical field of view, similar to how a wide-angle lens stretches a landscape to fill a frame. The SIRUI SR-35M, the SIRUI 24mm Anamorphic Lens F2.8 1.33X, the SIRUI 75mm F1.8 1.33X Anamorphic Lens, and the SIRUI 50mm F1.8 1.33X SR-MEK7E Anamorphic Lens all state a 1.33x squeeze factor.
If you need a wider perspective, you can view our full review of the Meike 18mm T2.1.
For those seeking a longer squeeze, see our spec breakdown of the SIRUI Saturn 75mm.
What a $267 price point buys for this cinema lens
The SIRUI SR-35M costs around $267, which sits $4 below the average of $271 for the similar cinema lens products we compared. At this price point, you get a 1.33x squeeze factor—the ratio of horizontal to vertical field of view—and a 35mm focal length. You trade off the wide-angle reach of a 26.3mm equivalent for the specific anamorphic squeeze that creates a 2.4:1 cinematic video look. The 1.8 f-stop maximum aperture allows you to capture a cinematic look on a compact camera or record a wide-angle vlog in a small room.
It is worth the price jump over a standard 35mm prime if you specifically need the light streaks and star burst effects that adapt to the aperture value. While standard primes provide a traditional look, this glass provides the anamorphic squeeze required for professional-style oval highlights.
Where this sits in the buyer data: Among the 45 products screened for this category, this one’s 4.2 rating places it #37, on 84 ratings – above the 29-rating median of that group, so the average rests on more feedback than most of its comparables. On price it undercuts 46 of them.
What It Takes to Run the SIRUI SR-35M
Mounting and Operating the SIRUI SR-35M
To use the SIRUI SR-35M, you must have a camera with an M4/3 Mount, which is the mechanical connection method used by the Micro Four Thirds system. This cinema glass functions as an anamorphic lens, a type of glass that compresses a wide field of view into a 2.4:1 cinematic video aspect ratio.
- Unpack the SIRUI SR-35M and thread the lens onto your M4/3 camera body.
- Attach a lens hood to the front to prevent flare and protect the front element.
- Mount a follow focus—which enables smooth, repeatable focus pulls—to the lens barrel to manage the manual focus.
- Slide a matte box onto the front of the lens to block stray light and hold filters.
Warranty and Support: What to Check
Warranty coverage and return policies differ by seller and country. Verify the following details before your return window closes:
- Confirm the mount is a native M4/3 connection to ensure it seats correctly on your specific camera body.
- Check the physical weight of 1.55 pounds to ensure your camera’s lens mount can support the front-heavy balance.
- Verify the 1.33x squeeze factor to ensure your camera’s sensor can accommodate the resulting 2.4:1 image.
The first thing to do when the lens arrives is to mount it and verify the 35mm focal length produces the expected 26.3mm camera lens field of view.
Questions Buyers Ask About This Cinema Glass
What is the SIRUI 35mm Anamorphic Lens SR-35M?
The SIRUI SR-35M is a cinema lens that provides a 1.33x squeeze factor, which compresses the horizontal field of view to create a 2.4:1 cinematic aspect ratio. This specific squeeze factor allows you to capture a wider horizontal view than a standard lens while maintaining a vertical frame, producing the characteristic oval bokeh and horizontal flares of anamorphic glass.
How does the SIRUI SR-35M handle low light?
The SIRUI SR-35M features a maximum aperture of F1.8, which is sufficient for filming low-light indie scenes that require a wide opening between 1.4 and 2 f-stops. Because it captures enough light for these conditions, you can maintain a usable shutter speed in dim environments without excessive noise.
Does the SIRUI SR-35M work with M4/3 cameras?
Yes, the SIRUI SR-35M is compatible with M4/3 Mount systems as stated in the product specifications. This means you can mount the lens directly onto Micro Four Thirds bodies to capture a wide-angle vlog or a cinematic portrait.
What is the field of view on the SIRUI SR-35M?
This wider perspective makes it suitable for recording vlogs in small rooms or capturing architectural shots where you need to see more of the surrounding environment.
How does the SIRUI SR-35M affect image edges?
The SIRUI SR-35M includes controls to manage chromatic dispersion, which refers to the color fringing that occurs on high-contrast edges. By managing this, the lens helps maintain color integrity across the frame during high-contrast cinematography.
Is the SIRUI SR-35M suitable for portraits?
The SIRUI SR-35M is capable of shooting cinematic portraits with a blurry background because its F1.8 aperture falls within the 1.2 to 2.8 f-stop range required for shallow depth of field. It provides enough separation to isolate a subject while maintaining the anamorphic look.
What are the physical dimensions of the SIRUI SR-35M?
The SIRUI SR-35M measures 4 x 3 x 3 inches and weighs 1.55 pounds. These dimensions allow the lens to remain relatively compact for a cinema glass option, making it easier to balance on smaller camera rigs.
Choosing a lens without checking the mount compatibility or squeeze factor can result in a return or a lens that cannot be physically attached to your camera body.
Is the SIRUI SR-35M Right for You?
Who the SIRUI SR-35M suits and the jobs it is the wrong choice for, listed below with the reason for each.
Who this cinema lens is for, and what it does well
Who the SIRUI SR-35M suits
- Micro Four Thirds camera owners — the M4/3 mount allows for native compatibility without adapters
- Indie filmmakers on a budget — the $267 price point makes anamorphic glass accessible for low-budget productions
- YouTube content creators — the 1.33x squeeze factor and 2.4:1 aspect ratio provide a cinematic look for vlogs
- Student filmmakers — the 35mm focal length provides a versatile wide-to-normal field of view for campus projects
- Music video directors — the light streaks and star burst effects create a stylized aesthetic for artistic visuals
What this cinema glass handles well
- Cinematic storytelling — the 2.4:1 aspect ratio and 1.33x squeeze factor
- Low-light filming — the F1.8 maximum aperture
- Creating stylized flares — the light streaks and star burst that adapt to aperture values
- Wide-angle cinematography — the field of view equivalent to a 26.3mm lens
- Color-accurate footage — the controls for chromatic dispersion
What this cine lens is the wrong choice for
- Ultra-wide landscape photography — the 35mm focal length (26.3mm equivalent) is too narrow for extreme wide shots
- Standard 16 — 9 social media content: the 2.4:1 squeeze factor requires specific cropping or framing
- Full-frame cinematography — the M4/3 mount is incompatible with full-frame sensor bodies
- Telephoto portraits — the 35mm focal length is too wide for tight headshots
What to budget alongside this cinema lens, and what to skip
Accessories worth buying with the SIRUI SR-35M
- Micro Four Thirds camera body — the lens requires this specific mount to function
- Anamorphic desqueeze software — needed to display the 1.33x squeezed image correctly in post-production
- Variable ND filter — needed to maintain the F1.8 aperture in bright outdoor lighting
- External monitor — needed to preview the 2.4:1 cinematic framing in real-time
- Lens hood — needed to manage flare and protect the 4 x 3 x 3 inch lens body
Accessories you can skip buying for this cinema lens
- Full-frame adapter — the M4/3 mount is native and does not require a conversion for this system
- Spherical cinema lens — the anamorphic properties of this lens provide the specific aesthetic requested
- Standard 35mm prime — the anamorphic squeeze and light streaks provide unique features a standard lens lacks
Where to Buy This Cinema Lens
When we looked in November 2026, the SIRUI SR-35M was listed at $267 – a snapshot that may have changed since.
Cinema lenses are sold by the retailers below – we do not track which of them has the SIRUI SR-35M in stock, so check availability and the current price with the retailer before making a trip.
- Albert Instruments (online only) — specialist retailer for high-end cinema and specialty optics
- KEH Camera (online only) — reliable source for used and refurbished cinema lenses
- Adorama (online and physical stores) — wide selection of cinema gear and professional trade accounts
- B&H Photo Video (online and physical stores) — wide selection of cinema gear and professional trade accounts
- B&H Photo Video (online and physical stores) — wide selection of cinema gear and professional trade accounts
- Adorama (online and physical stores) — large inventory of cinema accessories and professional support
- Amazon (online only) — high volume of third-party sellers and fast shipping
Final Verdict on the SIRUI SR-35M
If you need to capture a cinematic look on a compact camera, the SIRUI SR-35M provides a 1.8 f-stop aperture which is sufficient for this specific task. This cinema lens costs around $267 and features a 1.33x squeeze factor, which is the ratio of the horizontal field of view to the vertical field of view.
The SIRUI SR-35M provides a field of view equivalent to a 26.3mm camera lens. This lens uses an M4/3 Mount, which is the mechanical connection method for the camera body, and weighs 1.55 pounds.
You should choose the SIRUI SR-35M if you require a dedicated anamorphic lens for an M4/3 system and need to produce 2.4:1 cinematic footage. This cinema glass is available for around $267.
The 4.2 rating from 84 buyer ratings indicates a consistent experience for those seeking an entry-level anamorphic option. The 1.8 f-stop aperture allows for a blurry background in portraits and provides enough light for low-light indie scenes.
Skip it if: You require a wider field of view than a 26.3mm equivalent or if you need a wider maximum aperture than F1.8 for extreme low-light work.
Where to go next in our cine lens coverage
- Choosing the Best Wide Angle Cinema Lens for M43
- The Anamorphic Lenses That Work Best for Indie Film Production
- Which Cinema Lens Is Best for the RED Komodo?
- Best Cinema Lenses for Canon C300 Mark II
- Getting a Shallow Depth of Field for Vlogs With a Cinema Lens
- Which Cinema Lens Captures Wide Angle Shots for Small Spaces?