NiSi 35mm ATHENA PRIME Full Frame Cinema Lens T1.9 - PL Mount

The rear filter mount allows you to use filters like ND or polarizers at the rear element of the lens. This protects the front of the lens, simplifies matte box setups, and can prevent vignetting with wide-angle accessories. It also allows for quicker filter changes.

The T1.9 aperture is a 'true' measurement of light transmission, meaning it lets in a significant amount of light. This is beneficial for shooting in low-light conditions without needing to boost ISO excessively, and it allows for a shallow depth of field, creating pleasing background blur (bokeh) to isolate your subject.

Yes, the lens is designed to be matched in weight and size with other lenses in the Athena Prime series. This consistency is particularly helpful when using gimbals or stabilizers, as it minimizes the need for rebalancing when switching lenses.

Focus breathing is the slight change in the lens's field of view as you adjust focus. Minimized breathing means that when you pull focus from one subject to another, the image doesn't noticeably zoom in or out, maintaining a stable composition and ensuring focus pulls look smooth and professional.

This lens features a PL mount. To use it on cameras with different mounts like Canon EF or Sony E-mount, you will need a specific PL-to-[your mount] adapter. Ensure the adapter is designed for full-frame coverage if applicable.

The focus ring has a 300-degree rotation, which provides a generous range for precise focus adjustments. This extended throw, combined with fluorescent scales, allows cinematographers to make very accurate and repeatable focus pulls, which is crucial for professional cinematography.

Verify the PL mount is correctly attached to the camera or adapter. Ensure the lens is fully seated and locked into the mount. Check camera settings for lens compatibility.

Ensure the focus ring is properly adjusted for the desired distance. Clean the lens elements if they are smudged. Confirm the camera's sensor is clean.

While the lens is designed to minimize breathing, extreme focus pulls might still exhibit some. Practice smooth, controlled focus adjustments. Ensure the subject distance is within the lens's optimal range.

Ensure you are using compatible NiSi rear filters designed for the Athena Prime series. Check for any debris in the filter slot. Insert and remove filters with gentle, steady pressure.