SIRUI Venus Kit - Full-Frame Anamorphic Cinema Lens Set (35mm, 50mm, 75mm, 100mm, 135mm) - E-Mount
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This SIRUI Venus Full-Frame Anamorphic Cinema Lens Set is designed for filmmakers and videographers using Sony E-mount cameras who want to achieve a distinct cinematic look with wide aspect ratios, oval bokeh, and signature blue horizontal flares. Its key benefit is providing a versatile kit of five prime anamorphic lenses for extensive creative control, though achieving the maximum 2x squeeze requires combining specific lenses with an adapter, which adds complexity.
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| Brand | Sirui |
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FAQs
What is an anamorphic lens?
An anamorphic lens is a type of photographic lens that captures a wider field of view than a normal lens by squeezing the image horizontally onto the sensor. This effect creates a wider aspect ratio when the image is "desqueezed" in post-production, often resulting in oval bokeh and distinctive horizontal lens flares.
What is the maximum squeeze factor achievable with this kit?
By combining the 1.25x Anamorphic Adapter with the 1.8x anamorphic lens (135mm), you can achieve up to a 2x squeeze factor, providing the widest possible aspect ratio and anamorphic distortion.
Do I need to desqueeze the footage in post-production?
Yes, all footage shot with anamorphic lenses requires desqueezing in video editing software to correct the horizontal compression and achieve the intended widescreen aspect ratio.
Can I use these lenses on a Super 35mm sensor camera?
While designed for full-frame sensors, these lenses can be used on Super 35mm cameras. However, you will be shooting with a crop factor, and the field of view will be narrower than on a full-frame sensor.
How do the different squeeze factors (1.25x, 1.6x, 1.8x) affect the image?
A higher squeeze factor (e.g., 1.8x) results in more horizontal compression and a wider effective aspect ratio when desqueezed, along with more pronounced oval bokeh and flares. A lower squeeze factor (e.g., 1.25x) offers less compression and a look closer to a standard spherical lens but still retains some anamorphic characteristics.
Is the Anamorphic Adapter included with each lens?
The product description indicates a 1.25x Anamorphic Adapter is included in the set. This adapter is intended to be used with specific lenses to achieve higher squeeze factors, not that an adapter is bundled with every single prime lens.
Troubleshooting
Image appears stretched or distorted horizontally without the widescreen effect.
You may have forgotten to attach the Anamorphic Adapter or are using a lens without sufficient squeeze factor for your desired output. Ensure the correct adapter and lens combination is used and that your footage is desqueezed in post-production.
Lens focus is soft or difficult to achieve accurately.
Anamorphic lenses often have a shallower depth of field and require precise focusing. Use your camera's focus peaking and magnification tools. Practice manual focusing techniques.
Blue flares are not appearing as expected.
The appearance of flares is dependent on the light source. Ensure you have strong light sources entering the lens at an angle. Flares are typically more pronounced with direct light sources like sun or streetlights.
Lens is stiff or difficult to mount.
Check for any obstructions or debris on the lens mount or camera mount. Ensure you are aligning the correct mounting marks. Do not force the lens; if it resists, re-align and try again.
Pros and Cons
Pros
- Provides a full set of focal lengths for diverse shooting needs.
- Achieves a distinct cinematic look with anamorphic bokeh and flares.
- Offers flexibility in achieving different squeeze factors, including up to 2x.
- Maintains consistent color rendering across all lenses for a unified look.
- Full-frame coverage enhances creative possibilities on compatible cameras.
- Includes a protective hard case for professional transport and storage.
Cons
- Achieving the maximum 2x squeeze requires using the adapter with specific lenses, adding extra steps.
- Anamorphic lenses can be more challenging to focus and frame accurately compared to spherical lenses.
- The distinct anamorphic characteristics (flares, bokeh) may not suit all projects.
- The set represents a significant investment.
- Requires post-production work (desqueezing) to achieve the final aspect ratio.
Setup, Compatibility & Care
Setup: Mount the lenses directly onto your Sony E-mount camera body. Ensure the lens is securely attached by twisting it until it clicks into place. For achieving higher squeeze factors (up to 2x), attach the SIRUI Anamorphic Adapter to the front of the desired lens before mounting the lens onto the camera. For lenses requiring the adapter, ensure it is securely affixed to the lens.
Compatibility: This lens set is designed specifically for Sony E-mount full-frame mirrorless cameras. Ensure your camera body supports full-frame lenses and has an E-mount. Always check the latest compatibility information from SIRUI if you are using an unusual camera model.
Care:
- Always store lenses in the provided hard-shell case when not in use to protect them from dust, moisture, and physical impact.
- Clean lens elements with a soft, lint-free microfiber cloth. For stubborn smudges, use a lens cleaning solution sparingly on the cloth, not directly on the lens.
- Avoid touching the lens elements with your fingers. Use a blower brush to remove loose dust before wiping.
- Keep lenses away from extreme temperatures and humidity.
- When changing lenses, do so in a clean environment to minimize dust ingress into the camera body.