Irix 15mm Firefly F2.4 Wide Angle Prime Lens

£396.00 Regular price £439.00

Availability: Available Unavailable

Product Vendor: Irix

Product SKU: Irix15mmFSNik

Designed by Photographers A minimal distortion wide angle lens-unique in its classinnovative technology encased in a smart designA lightweight option with no optical compromisesOur Firefly lens offers the same optical performance and high quality mechanism as our Blackstone, but its...
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Product Details

Designed by Photographers

A minimal distortion wide angle lens-unique in its class

innovative technology encased in a smart design

A lightweight option with no optical compromises

Our Firefly lens offers the same optical performance and high quality mechanism as our Blackstone, but its ultra lightweight construction makes it the perfect choice for hikers, travellers, or anyone who simply likes to pack light.

The ergonomic, anti-slip, rubber coated focus ring makes for a practical, user-friendly lens. This lightweight option is ideal for on the go photography, without any compromise on optical quality.

95mm front filter thread

Retaining ring

The retaining ring of the frontal lens is free from engraving, printing or any other form of marking. This therefore prevents unwanted internal reflections when using high density filters.

Neutrino coating

Thanks to sophisticated optical construction and special neutrino coatings, colour aberration, ghosting and flare effects have been reduced to the absolute minimum.

Focus lock

Get more focused with focus lock. You can lock the focus ring at any time securing the setting that you choose. Precision, comfort and ingenious solutions.

Infinity click and hyperfocal scale

We have mastered infinity to the limits
The hyperfocal distance scale simply and intuitively gives information about accessible range for depth of field for a given aperture. When the ring is set in the “infinity” position, there is a noticeable “click”, making it easier to find the value without looking. Now you can fix your eyes on the image and concentrate on the composition.

extreme weather resistance

Irix lenses are made with phenomenal precision. Each Irix lens is equipped with a weather sealed construction which protects the interior against dust and moisture. Thanks to inner seals, our lenses are also protected from accidental water splashes.

intelligent filter options

We offer you excellent wide-angle lenses with front and rear filter options. Our lenses feature an ingenious way to easily access a rotatable filter through use of a window on the petal-shaped lens hood. Next to this, we have also included a rear filter slot for gelatin filters, offering you even more opportunity for filter use.


Image size: 35mm "Full Frame"
Focal length: 15 mm
Field of View: 110⁰ (diagonal)
Focus range: 0.25 m (0.82 ft) - ∞
Reproduction ratio: 1:9
Focus type: manual with lock function
Aperture range: f/2.4 – f/22
Aperture control: via camera
Aperture shape:    9 rounded blades
Lens construction: 15 elements in 11 groups 3x HR, 2x ED, 2x ASP
Front filter thread: 95 x 1.0 mm
Rear gelatin filter slot: 30 x 30 mm
Available mounts     Canon EF, Nikon F, Pentax K
Dimensions (DxH)     114 x 100 mm (4.49” x 3.94”)

Product Reviews

Shipping & Returns

Orders received before 3:45pm weekdays are dispatched the same day.

All orders are delivered within the United Kingdom mainland for £ 2.49, standard delivery, Free for orders over £70.

Destination Delivery method Delivery cost
UK Standard (Second Class) 2-3 days £2.49 (Free for Orders over £70)
First Class 1-2 days £3.99
Next Business Day Courier £8.49
EU Standard EU - Up to 20 Days £12.99
Expidited EU DPD Courier 6 Days £27.99

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Customer Reviews

Based on 1 review
A sharp, well built, performing lens for a great price

I have only had one chance to use the lens since I purchased it but this is what I found during that Milky Way landscape shoot:
The lens is well built, despite being the Firefly version it still feels solid. The focus ring has a smooth operation that’s just tight enough not to need the variable focus lock. Being manual focus only it has some useful features;
There’s a soft click as you turn the focus ring through infinity which is helpful especially in the dark. I still need to tune my cameras to this lens but I don’t think it’ll be far off. The lens still has focus electronics so it displays highlights in the viewfinder and live view screen when in focus.
Performance wise comparing it to my canon 14mm f2.8L mk1; very little chromatic abberation, much less unwanted lens flare, and sharper much further towards the edges. Less artefacts when shooting nightskies.

In conclusion, a sharp, well built, performing lens for a great price.


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