NiSi Cine Lens Set Athena Prime Master (8 Lenses) RF-Mount
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- BrandNiSi
Description
Article no.: 29089
NiSi Cine Lens Set Athena Prime Master (8 Lenses) RF-Mount – 46mm image circle for full-frame and large-format use
The NiSi Athena Prime Master set delivers a matched series of cine primes for filmmakers who need consistent optics and handling across a wide focal range. This RF-mount kit covers ultra-wide to portrait focal lengths and includes a hard case for safe transport and storage.
Key focal lengths and apertures
The kit spans from 14mm to 135mm, giving you options for super-wide landscapes, standard coverage, and tight portrait work. Each lens has a specified T-stop that indicates actual light transmission:
- 14mm – T2.4
- 18mm – T2.2
- 25mm – T1.9
- 35mm – T1.9
- 40mm – T1.9
- 50mm – T1.9
- 85mm – T1.9
- 135mm – T2.2
Optical performance and image quality
NiSi designed the Athena series to provide uniform image characteristics across the set. The lenses feature ultra-low chromatic aberration and micro-contrast control to preserve finer image detail. In addition, the series minimizes focus breathing, so the change in field of view while pulling focus remains extremely small.
Image circle and sensor compatibility
The Athena primes produce an image circle of 46mm. Therefore, you can use them on full-frame cameras and even on many large-format sensors without losing coverage.
Mounts and rear filtration options
The Athena series is available in several mount options, and NiSi built a proprietary rear filtration system into the design. Mount and filter options include:
- Available mounts: ARRI PL, Canon RF, Sony E, Panasonic/Leica L, and Fuji G.
- Drop-In filter mount: RF, L and G mounts include a Drop-In filter option.
- E-mount versions: offered in two variants — with and without a Drop-In filter.
- PL-mount: uses a rear filter option.
Note the following important compatibility items:
- Sony FX9 cannot use the E-mount version that includes Drop-In filters.
- To reach infinity focus and obtain clear images, you must use the Drop-In clear filter on RF, L, G, and E mounts, and the rear filter on PL mount when required by the lens.
NiSi also provides weather sealing for the Drop-In filter to protect the rear filtration area.
Handling, mechanics and accessories
NiSi matched the mechanical characteristics across the Athena range to speed up lens changes and simplify on-set workflows:
- All lenses are similar in weight, so you do not need to rebalance a gimbal when switching between Athena lenses.
- Except for the 14mm, all lenses use a 77mm front filter thread.
- Aperture and focus rings are matched across the series for consistent feel.
- Both focus and iris gears use the industry-standard 0.8 MOD, ensuring compatibility with follow focus systems and matte boxes.
- Focus rotation is 300° on all lenses, with fluorescent focus scales shown in both imperial and metric units to aid precise focus pulls.
- NiSi offers a 77mm close-up lens (sold separately) to reduce minimum focus distance and produce macro effects.
What’s included in this RF-mount kit
The NiSi Athena Prime Master RF kit ships as a complete set for immediate use on RF-mount cameras:
- 1x NiSi Athena Prime 14mm T2.4 RF-Mount
- 1x NiSi Athena Prime 18mm T2.2 RF-Mount
- 1x NiSi Athena Prime 25mm T1.9 RF-Mount
- 1x NiSi Athena Prime 35mm T1.9 RF-Mount
- 1x NiSi Athena Prime 40mm T1.9 RF-Mount
- 1x NiSi Athena Prime 50mm T1.9 RF-Mount
- 1x NiSi Athena Prime 85mm T1.9 RF-Mount
- 1x NiSi Athena Prime 135mm T2.2 RF-Mount
- 1x NiSi Hardcase for 9pcs NiSi Athena Lenses
| Specification | Details |
|---|---|
| Lenses included | 14mm T2.4, 18mm T2.2, 25mm T1.9, 35mm T1.9, 40mm T1.9, 50mm T1.9, 85mm T1.9, 135mm T2.2 |
| Image circle | 46mm |
| Mount options | ARRI PL, Canon RF, Sony E, Panasonic/Leica L, Fuji G |
| Rear filtration | Drop-In filter mount (RF, L, G); E-mount available with or without Drop-In; PL uses rear filter |
| Drop-In filter weather sealing | Weather sealed for Drop-In filter |
| Front filter thread | 77mm for all lenses except the 14mm |
| Focus rotation | 300° across the range |
| Focus scales | Fluorescent, displayed in both imperial and metric units |
| Gear standard | 0.8 MOD for focus and iris gears |
| Optical characteristics | Ultra-low chromatic aberration and micro-contrast control; minimized focus breathing |
| Close-up option | NiSi 77mm close-up lens available separately |
FAQ
Question: Will these lenses cover full-frame and larger sensors?
Answer: Yes. The Athena primes produce a 46mm image circle, making them suitable for full-frame cameras and many large-format sensors.
Question: Do I need to change gimbal balance when switching lenses?
Answer: No. NiSi designed the Athena lenses to be similar in weight so you do not need to rebalance a gimbal when swapping lenses within the series.
Question: How does the Drop-In filter system work across mounts?
Answer: RF, L and G mounts offer Drop-In filter options; E-mount is available in versions with or without Drop-In; PL uses a rear filter. Also, NiSi supplies weather sealing for the Drop-In filter area. Remember to install the required clear Drop-In or rear filter to achieve infinity focus and clear images.
Question: Can I use the E-mount Drop-In version on a Sony FX9?
Answer: No. The Sony FX9 cannot use the E-mount version that includes Drop-In filters, so check camera compatibility before choosing that variant.
Question: Are the lenses follow-focus friendly?
Answer: Yes. All Athena primes feature 0.8 MOD focus and iris gears, 300° of focus rotation, and fluorescent scales in both imperial and metric units to support precise follow-focus operation.
If you need additional details about mounts, filter compatibility, or accessories like the 77mm close-up lens, contact us and we will source the exact variant you require.