NiSi 9mm f/2.8 ASPH


NiSi wide angle 9mm f/2.8 lens APSH “Sunstar”
  • Smooth and precise manual focus
  • Manual control of the aperture diaphragm via dedicated ring from F2.8 a F16 (clickless)
  • NiSi Optical glass for precision applications
  • 67mm front thread for circular filters and 100 Series holders
  • Solid aluminium construction
  • Compact and lightweight, 74mm x 78mm, 364gr
  • Optical design with two aspherical element and four with very low dispersion elements
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SKU: uknisi1053a
Official NiSi UK Guarantee
Weather resistant
Official technical support
Lens grade optical glass
Compatible with Circular and Square 100mm filters

NiSi wide angle 9mm f/2.8 ASPH lens

All of NiSi’s optical knowledge and experience is expressed in the ultra wide-angle NiSi 9mm f/2.8 ASPH lens. A lens that focuses on first-rate features and paying attention to what matters; namely the quality of the materials and the quality of the glass.

Full metal barrel, optical glass for precision applications delivering optimum sharpness across the frame, construction with 14 elements in 12 groups, one aspherical element and two very low dispersion elements are just some of the features of the NiSi 9mm f/2.8 ASPH. Here are the main features:

  • Compatible with APS-C cameras (13.5mm focal length on Full Frame, 9mm on APS-C)
  • Mechanical ring for aperture diaphragm adjustment
  • Two aspherical and four ultra-low dispersion elements in optical glass
  • 10-blade diaphragm, designed to optimise light at any aperture
  • Generous focal range 113°
  • Minimum focusing distance of 20cm, for shots with very close subjects
  • Distortion contained and reduced to a minimum
  • 67mm front thread for use with both circular filters and the NiSi 100mm system for square filters


10 blades aperture

The diaphragm has been designed with 10 straight blades to obtain the star effect on points of light at any aperture, as well as maximising sharpness over the entire frame and aperture range. In addition, there is the mechanical ring of the aperture diaphragm, with the possibility of manual adjustment, perfect for precise adjustment and video use.












Sharpness and NiSi optical quality

Thanks to a proprietary design of 14 elements in 12 groups, with 2 aspherical element and 4 very low dispersion elements, sharpness is very high, with great performance even at the edges. The anti-reflective treatment reduces flares and internal reflections. As the NiSi 9mm f/2.8 ASPH lens manages optical distortion, it is also great for architectural photography.


All NiSi filters at your disposal

The NiSi 9mm f/2.8 ASPH lens has a 67mm front thread, so s compatible with both 67mm NiSi circular filters and the 100 System for square filters. Combined with the NiSi V7 with True Color CPLND 100×100 and GND 100×150 filters you will get the highest quality and flexibility for your photos.

Technical features

  • Focal length on APS-C: 9mm
  • Viewing angle: 113°
  • Mounts available: Canon RF / Fuji X / Nikon Z / Sony E / Micro 4/3
  • Aperture range: f/2.8 – f/16 (clickless)
  • Focus: manual
  • Front thread diameter: 67mm
  • Minimum focusing distance: 0.2m
  • Maximum magnification: 0.08x
  • Weight: 364gr
  • Dimensions (diameter x length): 74mm x 78mm
  • Weather Sealed with a yellow rubber band on the bayonet

Download the PDF with all technical specifications here.

NiSi 9mm f/2.8 ASPH lens video

NiSi quality at this price?

The production of a lens is extremely complex: many people, suppliers and skills are involved (much more than a filter, for example.) The simplest way to create a new product is to use third party knowledge as much as possible and then apply a brand and mark-up. NiSi, on the other hand, has once again chosen a different path by managing the project internally as much as possible. This allows us to deliver a great advantage to the customer: reduced cost.

The more complex the product, the more we will be able to save resources by managing it internally. This involves above average development times, but the results are of the quality that distinguishes NiSi products.

For the NiSi 9mm f/2.8 ASPH lens, we focused on what’s really important: the glass, the metal and as few electronics as possible. Although there are dozens of “smart” lenses available today, we believe that the fundamental aspects are the ones to invest in as they are the ones that make a product of superior quality; optical quality, construction accuracy and ease of use. Not using autofocus, stabilisation and other electronic aids have allowed us to offer a price that we believe is proportionate and the quality of lens grade optical glass is the same that existing NiSi customers have become accustomed to in our filters. As ever, our ultimate goal is delivering our customers’ professional products at reasonable prices.

Transparency and trust are among our founding values, and we are always available to answer your questions on any aspect of our passion for photography.