NiSi 15mm f/4 Sunstar Lens for Sony E: FAQ

Lens Basics and Compatibility

What camera mounts does the NiSi 15mm f/4 Sunstar lens fit?

This version is specifically designed for Sony E-mount full-frame mirrorless cameras. It also works on APS-C Sony E-mount bodies, where it provides a 22mm equivalent focal length.

Is the lens fully manual focus?

Yes, the lens uses a manual focus design. There is no autofocus capability. The minimum focus distance is 0.2m, allowing for close-up foreground subjects.

What is the field of view?

The lens offers a 112° field of view on full-frame Sony E-mount cameras.

Sunstar and Optical Performance

How does the sunstar effect work?

The lens features a unique aperture design with 10 straight blades, enabling noticeable sunstars from f/4 to f/22. This means you don't need to stop down to very small apertures to get a defined sunburst.

What optical corrections are included?

The lens uses one double-sided aspherical element and two extra-low dispersion elements. According to the manufacturer, this minimizes chromatic aberration, distortion, and vignetting while maintaining sharpness from center to corners.

Does the lens have any coating?

Yes, NiSi applies anti-reflection technology to reduce flare and stray light, plus a hard surface coating to improve toughness and water resistance on the glass elements.

Filter and Accessory Use

What filter thread does the lens use?

The lens has a standard 72mm filter thread, so it accepts common screw-in filters of that size.

Can I use a 100mm filter holder system?

Yes, the lens supports the NiSi 100mm filter holder system. The compact design allows you to use both circular filters and a 100mm holder without vignetting.

Is the lens compatible with the NiSi 100mm filter system right out of the box?

The supplied information confirms the lens supports the NiSi 100mm filter system, but specific adapter rings or step-up rings are not detailed. You may need to check compatibility with your specific holder.

Warranty and Purchase

What warranty comes with the lens?

NiSi lenses purchased from authorized dealers are eligible for a 2-year warranty. This lens is sold by NiSi Filters Australia, an authorized retailer.

Key Specifications at a Glance

• NiSi 15mm f/4 Sunstar Super Wide Angle Full Frame ASPH Lens in Silver (Sony E Mount): Aperture range: f/4 to f/22 with 10 straight blades for sunstars. Confirms you can achieve sunstars throughout most of the aperture range, not just at narrow apertures.

  

• NiSi 15mm f/4 Sunstar Super Wide Angle Full Frame ASPH Lens in Silver (Sony E Mount): Full-frame Sony E-mount, also usable on APS-C (22mm equivalent). Clarifies compatibility: it's designed for full-frame but works on APS-C with a wider effective field of view.
• NiSi 15mm f/4 Sunstar Super Wide Angle Full Frame ASPH Lens in Silver (Sony E Mount): 72mm filter thread and supports NiSi 100mm filter holder system. Indicates filter options without needing a special adapter for standard screw-in filters.
• NiSi 15mm f/4 Sunstar Super Wide Angle Full Frame ASPH Lens in Silver (Sony E Mount): Manual focus, minimum focus distance 0.2m. Important for close-up work and creative compositions; no autofocus means you'll need to focus manually.