NiSi Cine Lens Set Athena Prime PL-Mount

NiSi Cine Lens Set Athena Prime PL-Mount – 14–135mm series coverage with PL rear filter option

This NiSi Athena Prime series presents a cohesive family of cine primes that spans focal lengths from 14mm to 135mm. The series delivers consistent T-stop values across many focal lengths, a large 46mm image circle, and mounts including PL. This product description describes the Athena Prime series and details the specific PL-mount kit contents included in this package.

Package and intended use

The NiSi Athena Prime line targets cinematographers and videographers who need a matched set of cine primes. The series covers super-wide-angle to portrait focal lengths, which allows you to capture a wide variety of subjects and shooting scenarios. The kit sold here is a PL-mount kit and includes five Athena Prime lenses, a hard case sized for the set, and two 4x5.65" NiSi cine filters.

Optical performance and transmission

The Athena Prime series uses T-stop ratings to describe actual light transmission through each lens, ensuring consistent exposure when you change lenses. Across the series, the maximum T-stops are:

• 14mm: T2.4
• 18mm: T2.2
• 25mm: T1.9
• 35mm: T1.9
• 40mm: T1.9
• 50mm: T1.9
• 85mm: T1.9
• 135mm: T2.2

These T-stop values allow softer bokeh and background separation on the T1.9 lenses (25/35/40/50/85), while the wider and longer extremes are T2.4 (14mm) and T2.2 (18mm and 135mm).

Image circle and sensor compatibility

The series provides an image circle of 46mm. Consequently, the lenses are suitable for use with full-frame sensors and compatible with many large-format sensor cameras. This image circle supports broader sensor coverage, helping you retain corner-to-corner performance on larger sensors.

Mounts, filters and rear filtration system

The Athena Prime series is available in multiple mount options across the range: ARRI PL, Canon RF, Sony E, Panasonic/Leica L and Fuji G. The series features a proprietary rear filtration system with Drop-In filter capability on several mounts and a rear filter design for PL-mount.

• RF-, L- and G-Mount lenses: Drop-In filter option available.
• E-Mount: available in two versions — with and without Drop-In filter.
• PL-Mount: utilizes a rear filter.

Important notes:

• Sony FX9 camera cannot use the E-Mount version with Drop-In filters.
• It is important to use the Drop-In clear filter on RF-, L-, G- and E-mount lenses and the rear filter on PL-mount lenses to achieve infinity focus and obtain clear images.

NiSi also provides weather sealing for the Drop-In filter to help protect the filtration system in challenging conditions.

Mechanical design and handling

The Athena Primes are matched across the series for handling and ergonomics. All lenses are similar in weight, which means you generally do not need to rebalance a gimbal when swapping lenses in the Athena family. Except for the 14mm lens, the lenses share a 77mm front filter thread, simplifying accessory use across the set.

Both aperture and focus rings are matched across the range for consistent tactile feedback. Each lens features a focus rotation of 300° and fluorescent focus scales displayed in both imperial and metric units to support precise focus pulls. The series uses standard 0.8 mod focus and iris gears, making the lenses compatible with a wide range of follow focus and matte box systems.

Accessories and macro options

NiSi offers a 77mm close-up lens (sold separately) that can reduce the minimum focus distance and create macro-style effects when used with the Athena Primes. This close-up accessory expands the creative use of the lenses for tighter subject work.

What this PL-mount kit includes

• 1x NiSi Athena Prime 14mm T2.4 PL-Mount
• 1x NiSi Athena Prime 25mm T1.9 PL-Mount
• 1x NiSi Athena Prime 35mm T1.9 PL-Mount
• 1x NiSi Athena Prime 50mm T1.9 PL-Mount
• 1x NiSi Athena Prime 85mm T1.9 PL-Mount
• 1x NiSi Hardcase for 6pcs NiSi Athena Lenses
• 1x NiSi Cine-filter 4x5,65" True Color Polarizer
• 1x NiSi Cine Filter 4x5,65" Black Mist 1/8

Technical specifications

Frequently Asked Questions

Question: Is this kit the Athena Prime set in PL-mount and which lenses are included?
Answer: Yes, this listing is for the Athena Prime PL-mount kit. It includes five PL-mount lenses: 14mm T2.4, 25mm T1.9, 35mm T1.9, 50mm T1.9 and 85mm T1.9, plus a hard case and two 4x5.65" NiSi cine filters.

Question: Do the Athena Primes cover full-frame and large-format sensors?
Answer: The Athena Primes provide an image circle of 46mm, which makes them suitable for full-frame sensors and compatible with many large-format sensor cameras.

Question: Which mounts have Drop-In filters, and what must I use to achieve infinity focus?
Answer: RF, L and G mounts offer a Drop-In filter option; E-mount is available with and without Drop-In; PL uses a rear filter. To achieve infinity focus and clear images, use the Drop-In clear filter on RF, L, G and E versions that support it, and use the rear filter on PL-mount lenses. Note that the Sony FX9 cannot use the E-mount with Drop-In filters.

Question: Will switching Athena lenses require rebalancing my gimbal?
Answer: The Athena Prime lenses are similar in weight across the series, so you typically will not need to rebalance a gimbal when switching between Athena lenses.

Question: Are the focus and iris controls compatible with industry follow-focus and matte box systems?
Answer: Yes. The lenses use standard 0.8 mod focus and iris gears and have matched aperture and focus rings across the range, supporting common follow-focus and matte box systems for smooth operation on set.