Used Irix 15mm f/2.4 Blackstone Nikon Fit Lens

Condition & contents

At a glance: Irix 15mm f/2.4 Blackstone - weather-sealed manual-focus ultra-wide prime for Nikon FX, astro-friendly.

About this lens

The Irix 15mm f/2.4 Blackstone is a manual-focus ultra-wide prime for Nikon full-frame DSLRs. Irix's Blackstone line uses a weather-sealed metal build - a premium manual-focus option for landscape, astro and architecture photographers who want 15mm f/2.4 coverage on full-frame.

Build & handling

Works with

• Nikon F-mount full-frame DSLRs (D750, D780, D810, D850, D6 and older)
• Nikon F-mount APS-C DSLRs (acts as ~22.5mm equivalent)
• Nikon Z mirrorless via FTZ/FTZ II adapter - manual focus retained, chip preserved

Best for

A serious ultra-wide manual-focus prime for Nikon FX - f/2.4 is fast for a 15mm, and a filter-accepting bayonet hood + 95mm front thread let you use screw-in filters (unusual for ultra-wides). Popular for astrophotography (fast aperture + wide field), landscape and architecture. Electronic chip provides focus-confirmation and EXIF data.

Frequently asked questions

Does it autofocus?

No. This is a manual-focus lens. The electronic chip provides focus confirmation via the body's focus-confirm dot, and records aperture/focal length in EXIF.

Is this good for astrophotography?

Yes - f/2.4 at 15mm is a strong combination for wide-field astro work. The weather-sealed build and screw-in filter thread make it a practical outdoor option.

Does this lens have image stabilisation?

No — this lens does not have image stabilisation.