NiSi Cine Lens Set Athena Prime Master (8 Lenses) E-Mount (Without Drop-In Filter)

NiSi Cine Lens Set Athena Prime Master (8 Lenses) E-Mount (Without Drop-In Filter) — 46mm image circle for full-frame and large-format sensors

The NiSi Athena Prime Master set for E-Mount delivers a matched suite of prime cine lenses designed for filmmakers who need consistent exposure, matched mechanics, and broad focal coverage. This kit includes eight E-Mount Athena Prime lenses supplied without Drop-In filters and a hard case for storage and transport.

Focal range and aperture consistency

The set spans an extensive focal range from ultra-wide 14mm to portrait-length 135mm. Specifically, the kit contains 14, 18, 25, 35, 40, 50, 85 and 135mm primes. The lenses feature T-stop ratings that give you true light transmission values for reliable exposure when swapping lenses.

• 25, 35, 40, 50 and 85mm: maximum aperture T1.9 for shallow depth of field and pleasing background separation.
• 18 and 135mm: maximum aperture T2.2.
• 14mm: maximum aperture T2.4.

Image circle, mounts and chromatic control

The lenses provide an image circle of 46mm, making them suitable for full-frame and even large-format sensors. The series is available in multiple mount options across NiSi’s range, and the optics prioritize chromatic control and micro-contrast for finer image detail.

• Available mount families in the series: ARRI PL, Canon RF, Sony E, Panasonic/Leica L and Fuji G.
• Ultra-low chromatic aberration and micro-contrast control help retain image detail across the set.

Mechanical design and handling

NiSi matched the mechanical behavior of the Athena Primes to simplify lens changes on set. The aperture and focus rings are harmonized across the range, and the focus rotation is long for precise pulls.

• Matched aperture and focus rings across the set for consistent hand and follow-focus feel.
• Focus rotation: 300° for fine focus adjustments.
• Fluorescent focus scales are shown in both imperial and metric units to assist focus pulling in varied workflows.
• Standard 0.8 mod focus and iris gears ensure compatibility with common follow focus and matte box systems.

Filter and rear filtration system

The Athena Prime series features a proprietary rear filtration system. Some mounts use a Drop-In filter option while PL uses a rear filter. The E-Mount is available in two versions overall, with or without the Drop-In filter; this particular kit is the E-Mount version supplied without Drop-In filters.

• RF, L and G mounts: Drop-In filter option available.
• E-Mount: offered in two versions (with or without Drop-In filter); this set is the version without Drop-In filters.
• PL-mount: uses a rear filter.

Important: Use the Drop-In clear filter on RF, L, G and E-mount lenses, and use the rear filter on PL-mount lenses, to achieve infinity focus and clear images.

• Sony FX9 camera cannot use the E-Mount with Drop-In filters.

NiSi also provides a weather-sealed solution for the Drop-In filter to protect the rear filtration area when using that option.

Practical workflow advantages

The Athena Primes are designed to be convenient on set and in the field. NiSi matched weights across the range so lens swaps do not force repeated gimbal rebalancing in most situations.

• All Athena Prime lenses are similar in weight and do not require rebalancing on a gimbal when switching between lenses.
• All lenses except the 14mm share a 77mm front filter thread, simplifying filter handling across the set.

Additionally, NiSi offers a 77mm close-up lens (sold separately) to reduce minimum focus distance and create macro effects when needed.

What’s included in this kit

• 1x NiSi Athena Prime 14mm T2.4 E-Mount (Without Drop-In filter)
• 1x NiSi Athena Prime 18mm T2.2 E-Mount (Without Drop-In filter)
• 1x NiSi Athena Prime 25mm T1.9 E-Mount (Without Drop-In filter)
• 1x NiSi Athena Prime 35mm T1.9 E-Mount (Without Drop-In filter)
• 1x NiSi Athena Prime 40mm T1.9 E-Mount (Without Drop-In filter)
• 1x NiSi Athena Prime 50mm T1.9 E-Mount (Without Drop-In filter)
• 1x NiSi Athena Prime 85mm T1.9 E-Mount (Without Drop-In filter)
• 1x NiSi Athena Prime 135mm T2.2 E-Mount (Without Drop-In filter)
• 1x NiSi Hardcase for 9pcs NiSi Athena Lenses

Technical specifications

Smart FAQ

Question: Are these NiSi Athena Primessuitable for full-frame and large-format cameras?
Answer: Yes. The lenses have a 46mm image circle, which is specified to cover full-frame and even large-format sensors, making them compatible with those sensor sizes.

Question: Does this E-Mount kit include Drop-In filters?
Answer: No. This specific NiSi Athena Prime Master kit for E-Mount is the version supplied without Drop-In filters. NiSi does offer E-Mount lenses in two versions (with and without Drop-In), and RF, L and G mounts also have Drop-In filter options.

Question: Will I need to rebalance a gimbal when switching between Athena lenses?
Answer: In most cases you will not. NiSi states that all Athena Prime lenses are similar in weight and do not require rebalancing on a gimbal when switching lenses, which speeds up lens changes during production.

Question: How do I ensure infinity focus and clear images when using these lenses?
Answer: Use the Drop-In clear filter on RF, L, G and E-mount lenses and use the rear filter on PL-mount lenses. NiSi notes that these filters are important to achieve infinity focus and obtain clear images.

Question: Can I use Drop-In filters with a Sony FX9 camera?
Answer: No. The Sony FX9 camera cannot use the E-Mount with Drop-In filters, so plan mount and filter choices accordingly.

Question: Are the focus and aperture controls compatible with standard cinema accessories?
Answer: Yes. The Athena Primes use standard 0.8 mod focus and iris gears, and they have matched aperture and focus rings across the range for smooth compatibility with follow focus units and matte boxes.

Question: Is there a way to get closer focus or macro effects with these lenses?
Answer: Yes. NiSi offers a 77mm close-up lens (sold separately) that can reduce the minimum focus distance and help create macro-style effects when needed.

If you need a version of these lenses with Drop-In filters or a different mount, contact us and we can source the configuration that fits your camera and workflow.