NiSi Cine Lens Set Athena Prime Add-On (3 Lenses) PL-Mount

NiSi Cine Lens Set Athena Prime Add-On (3 Lenses) PL-Mount — 18mm, 40mm, 135mm with matched focus and aperture gearing

This NiSi Athena Prime Add-On kit contains three PL‑mount cine primes designed to integrate seamlessly with the Athena series. The set gives filmmakers additional focal lengths that match the handling and mechanical characteristics of the wider Athena lineup, while delivering the optical traits described for the series.

Key optical coverage and T-stop information

The Athena series spans a focal range from 14mm ultra‑wide to 135mm portrait focal lengths, providing a wide variety of shooting options across super‑wide, standard and telephoto needs. Within the series, T‑stop ratings vary by focal length and are given as actual light transmission measurements for consistent exposure planning.

• 25/35/40/50 & 85mm: maximum aperture T1.9.
• 18mm and 135mm: maximum aperture T2.2.
• 14mm: maximum aperture T2.4.

Image circle, mounts and chromatic control

The Athena lenses produce an image circle of 46mm, making them suitable for full‑frame and large‑format sensors. The series is available in multiple mount options so you can choose the system that fits your camera platform.

• Available mounts: ARRI PL, Canon RF, Sony E, Panasonic/Leica L and Fuji G.
• Optical design emphasizes ultra‑low chromatic aberration and micro‑contrast control for finer image detail.

Filter system and important mount notes

The Athena series offers a proprietary rear filtration system for flexible creative control. Different mount versions handle the filter option slightly differently, so follow the guidance below to achieve infinity focus and clear images.

• RF, L and G mounts: include a Drop‑In filter option.
• E‑Mount: offered in two versions, with or without Drop‑In filter.
• PL‑Mount: utilizes a rear filter.

Important: Use the Drop‑In clear filter on RF, L, G and E mounts (when required) and the rear filter on PL mount to achieve infinity focus and obtain clear images. Also note that the Sony FX9 camera cannot use the E‑Mount version that includes Drop‑In filters.

NiSi supplies a weather‑sealed option for the Drop‑In filter to protect the filtration system in demanding conditions.

Handling, mechanical matching and gimbal use

NiSi designed the Athena primes so that aperture and focus rings are matched across the range. Each lens in the series (except 14mm) shares a 77mm front filter thread. Because the lenses are similar in weight, you typically do not need to rebalance a gimbal when switching between Athena lenses.

• Matched aperture and focus gearing across lenses.
• All lenses (except 14mm) share a 77mm filter thread.
• Lenses maintain similar weight to minimize gimbal rebalancing when swapping lenses.

Focus performance and professional cine features

The Athena primes minimize focus breathing, keeping field‑of‑view changes small when pulling focus from minimum distance to infinity. Each lens offers a long focus throw and clear scales for precise repeatable focus pulls.

• Focus rotation: 300° for accurate, fine adjustments.
• Fluorescent focus scales displayed in both imperial and metric units.
• Standard 0.8 MOD focus and iris gears for broad compatibility with follow focus and matte box systems.

Accessories and close‑up capability

NiSi offers a 77mm close‑up lens (sold separately) that reduces the minimum focus distance and enables macro‑style effects when needed.

This kit includes

• 1x NiSi Athena Prime 18mm T2.2 PL‑Mount
• 1x NiSi Athena Prime 40mm T1.9 PL‑Mount
• 1x NiSi Athena Prime 135mm T2.2 PL‑Mount
• 1x NiSi Hardcase for 9pcs NiSi Athena Lenses

Technical specifications

FAQ

Question: Which lenses are included in this PL‑mount Add‑On kit?
Answer: This kit includes the NiSi Athena Prime 18mm T2.2 PL, 40mm T1.9 PL and 135mm T2.2 PL, plus a NiSi hardcase for nine Athena lenses.

Question: Do these lenses require rebalancing on a gimbal when swapping between them?
Answer: The Athena primes are similar in weight, and NiSi designed them so you generally do not need to re‑balance your gimbal when switching lenses within the series.

Question: How do the filters work with PL‑mount lenses?
Answer: PL‑mount Athena lenses use a rear filter; to achieve infinity focus and clear images you must use the PL rear filter as specified. Other mounts use Drop‑In filters or have specific versions, so follow the mount‑specific instructions.

Question: Will the E‑Mount version with Drop‑In work on my Sony FX9?
Answer: No. The Sony FX9 cannot use the E‑Mount version that includes Drop‑In filters. If you need E‑Mount compatibility for that camera, check mount version requirements before purchase.

Question: Are the focus and aperture gears compatible with standard follow focus systems?
Answer: Yes. Athena lenses feature standard 0.8 MOD focus and iris gears and include 300° focus rotation with fluorescent imperial and metric scales to support precise, repeatable pulls.

If you need further clarification about mount compatibility, filter options or using the Add‑On set with your specific camera rig, contact us and we will help source the right configuration for your workflow.