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IRIX 15mm f/2.4 Firefly Lens for Canon EF

SKU: IRXF1524EOS MFR: IL-15FF-EF
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Key Features

  • Capture stunning landscapes with the Irix 15mm lens's ultra-wide 110° angle of view.
  • The fast f/2.4 aperture on this Irix lens excels in low light, perfect for night photography.
  • Achieve sharp, detailed images with the Irix lens's 15 elements in 11 groups optical design.
  • Manual focus gives you precise control for creative focus effects with this Irix prime lens.
  • Durable build quality ensures the Irix 15mm Firefly lens withstands demanding shooting conditions.
  • Explore unique perspectives with this 15mm wide angle lens, ideal for real estate photography.
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Special Order?Estimated to Ship: 08/07/2025
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$34.99

2 Year

$59.99

3 Year

$79.99

Available to U.S. customers only.

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Q&A

Questions & Answers

JESSE P : What kind of manufacturer warranty does this lens have?
Shopper : Why Did You Choose This?JAMES S : Recommended by astro photographers. Had issues with Samyang, this was an alternative to try.CHRIS M : Recommended by a friend with taste.MARY A : Quality wide angle lens at an affordable price.HERACLEO H : I bought this lens because I did a research on the quality for night landscape photography and the reviews say it has an excelent performance about low chromatic aberration, low star deforming aberrations and good sharpness. All these for a very decent price. I hope it'll fill my expectations.TRACEY H : Amazing lens and a good price!!RICHARD M : For Astro and Landscape photographyRenee D : Price, focus lock, reviews, looking for beginner astrophotography lens with sharp image quality

Reviews about this item

Review Summary

2023-03-09T11:14:08

Rated 5 out of 5

I love it

Very good lens for the money. Excellent value

Luis A.

2022-06-02T07:12:05

Rated 5 out of 5

Sharp and great features.

Tried it on my Canon RP with Canon RF-EF adapter. Impressed by the sharpness and build quality. The focus ring is very tight. I like the ability to change the aperture using my camera instead of turning a ring on the lense in competitor's lense. 15mm at f/2.8 is what I used for astrophotography. First shots using lense shown. Focus lock and infinity focus click are nice features. I like the lense hood and cap. Cap can be tricky to put on in the dark.

Jimmy C.

2021-09-13T11:02:57

Rated 5 out of 5

Irix lens and bonus items.

This is a great value! I love the lens and some of the included items are great surprises!

Nick W.

2021-09-13T10:57:18

Rated 5 out of 5

Irix Firefly 15mm lens.

What a fun lens! I wish I would have sprung for the more expensive version. But this one does all I need plus!

Nick W.

2021-04-04T04:12:00

Rated 4 out of 5

Great budget astrophotography lens

Very nice using this IRIX 15mm f/2.4 lens with the FTZ adapter on my Z6 and for my D810. It's pretty easy to manually focus however, the unique focus lock ring is quite stiff. It has the connections to let you control aperture and you get full EXIF data. So far it's sharp, well controlled distortion, easy, and fun to use with weather sealing, filter use availability. All of that for a very reasonable price! Still testing the copy I got.

RONALD L.

2020-07-25T18:30:47

Rated 5 out of 5

Outstanding manual wide angle lens!

Love using this IRIX 15 f/2.5 lens with the FTZ adapter on my Z6. It's super easy to manually focus. It has the connections to let you control aperture and you get full EXIF data. It's super sharp, easy, and fun to use with weather sealing to boot . All of that for a very reasonable price !

Eroildo C.

2019-05-09T13:17:15

Rated 4 out of 5

Good

Solid lens. Overall very satisfied, only complaint is that the manual focus ring is a bit stiff.

John S.

2019-04-16T04:11:31

Rated 1 out of 5

Buyer beware

This lens had the worst decentering I’ve ever seen. Entire left side of the frame was soft, regardless of aperture. From reading online, irix seems to have quality control issues. Glad adorama has a good return policy

JON S.

2019-04-13T07:42:58

Rated 5 out of 5

Best budget astrophotography lens

I was going to buy the Rokinon/Samyang 14mm lens for milkyway shots until I discovered this lens. With only (&) more than a Rokinon, this is still a cheap lens, however, I believe it is better in everyway (at least according to the specs). Some said that the infinity mark is usually not very accurate, but at least mine is pretty accurate for stars. I have only taken it out once for a milkyway shot (cloudy all the time in the midwest!) and very happy with the results. I am only planning to use this lens for astrophotography so I am not worried about filters, still it is good to know that you do not need an expensive filter system for landscapes with the front element not being a huge bulb. If you are hesitating between the Firefly and Blackstone version like I did, just get the Firefly version because it is already a fantastic lens, buy a Nikon 50mm f/1.8 with the money you saved. I highly recommend this lens.

FAN P.

2019-04-12T11:22:46

Rated 5 out of 5

Value can't be beat

The way I look at this lens is ROI - for the price it simply can't get any better. Beautiful landscape and astro shots with minimal distortions. For the artistic bokeh it's not the best but gives a nice subdued softness.

JOSHUA H.

2019-02-05T08:29:53

Rated 5 out of 5

Pretty good ultra wide for the price

I purchased the Irix 15mm lens to do some interior photography, and it’s been great. The focus lock was set to infinity right away without me having to do any calibration, and with focus peaking in my Sony A7rii, I haven’t missed the autofocus. Distortion is surprisingly minimal, and what is there is easily fixed in Lightroom. It’s been pretty sharp, and I’m very happy with my purchase.

SHANNON P.

2019-01-11T15:30:15

Rated 5 out of 5

Sharp, Sharp Sharp

Great ff wide angle lens. Sharp as a tack with pleasing color rendition. My favorite wide angle for my D750 and I have several other wide lens. Great build quality and attention to detail. Like it so well thinking about buying the Irix 150 macro.

Vicki P.

2019-01-10T07:32:11

Rated 5 out of 5

Nice lens

I love this lens for landscapes, for astrophotography though there's a minor flaw in it as it makes stars into comas. Other than that it's a great lens.

Ashley H.

2018-12-19T15:36:54

Rated 3 out of 5

Good glass bad focus

Focus way off. Good glass wen in focus

JOHN D.

2018-11-19T04:53:10

Rated 4 out of 5

Sharp, well built, bangitty buckity

Tack sharp, solid built, my only complain is the focus scale seems to be a bit off defacto(don't trust the camera confirmation), and the customer service yet to get back to me after a month, that aside, if you have the patience to sit it out focusing, amazing glass

Manuel N.

2018-11-01T11:24:20

Rated 5 out of 5

Darn good value

I've only used this lens for a few days. For the money, it's incredible. It is just as sharp as my L glass, maybe better. At the very edges it is quite soft, but everywhere else quite good. I might leave a little room for cropping. As I shoot only at night, I pretty much have to shoot wide open. Stopped down might be even better. Manual focusing in the dark is a bit of a challenge but for day time landscapers, it should be a snap, especially with Canon focus confirmation. If you don't mind the weight, I could see getting the more rugged metal version, but given the weight, I am glad I got the Firefly. 70-200 L; 24-70 L; Irix 15 -- a comprehensive combination.

Paul G.

2018-05-20T11:21:11

Rated 5 out of 5

Great addition to my lens collection

I like to improve my lens collection but keep costs and weight down. I have a 24mm Tilt/Shift which I have grown to love but frequently wished for something a bit wider. The wide angle zooms seem quite good today but they are heavy and expensive. This IRIX 15mm does the job perfectly for me. In addition, I get a full set of ND filters included so I only need to add the CPF. The pictures I am getting are very sharp and nicely contrasty so I am very happy with that.

Kenneth C.

2018-05-15T15:02:54

Rated 5 out of 5

Irix 15mm Firefly

I bought this lens for Milky Way photography in which a fast lens is an advantage if not a must. Accurate infinity focus is critical and this lens is calibrated well right out of the box. It focuses best on stars at the full infinity setting. I've had other wide angle prime lenses that were way off in this respect. I had a bit of an issue attaching the included lens shade which didn't seem to fit properly. I contacted Irix support by email and they were very responsive. Problem solved. My first results are excellent and I've concluded that the lens is a keeper. It will work on both crop sensor and full frame cameras but the lens really shines on full frame for my particular application (Milky Way). See the included photo.

Gary S.

2018-02-28T06:04:27

Rated 5 out of 5

Best lens with it's price

I use both Firely and Blackstone version, both are very sharp but not in all frame position, one is more sharp in the right and the other is better in the left, that is some issue about quality control, but for me it is not a big problem. I choose this for landscape photography because it is very good perfromance/ price and the most importance for me that it can use 100mm square filters system in the front of lens instead of 150mm system so you can save huge of money, space and wieght in your bag

DAT K.

2018-02-25T07:36:35

Rated 5 out of 5

Awesome lens!

I love this lens. The quality is high both optically and in its overall build. The results I've gotten so far are outstanding, especially for the price of this lens. I also have the 11mm in Pentax mount and it, too, is outstanding. Highly recommend. The lack of auto-focus in a focal length this wide is not an issue because of the extreme depth of field. But, you have to remember to focus it manually, or you can get images that are not in focus.

DAVID M.

2018-02-13T09:35:38

Rated 4 out of 5

Great little lens

I bought this lens for capturing wide angle landscapes, architecture and astro photography shots. So far I've only used it for landscapes on my but I have to say I'm impressed. For the price this is a great little lens. I went for the firefly to save weight and it feels reasonably sturdy considering its all plastic. What I really noticed about this lens though is the lack of distortion, I also have the nikon 16-35mm and this gives much straighter edges. Its also very sharp when you nail the focus. I wish I could get an autofocus version but at this focal length its not really a major problem. The focus ring clicks into place at infinity and seems to be reasonably accurate. The only real downside I noticed is that the photos tend to look slightly underexposed so I have to up my exposure compensation slightly. All in all a great value lens from a reasonably unknown manufacturer. I look forward to seeing what else Irix will come out with.

Christopher H.

2017-12-28T04:51:14

Rated 5 out of 5

hyper focal scale

Fast focus, ease of use, sharp images and minimal distortion for such a wide angle lens. very happy with it, would recommend.

John P.

2017-11-09T13:39:18

Rated 5 out of 5

Gorgeous lense

This is my first wide angle lense. I used it on my canon 80D and Canon D classic. Lense is recommended for a full body camera but it does work well on a crop sensor too. You just get less field view. The lense fells extremely solid and well built. Love the packaging in a metal box, extra protection. It also came with a protection case. I am looking forward to see what futur lenses this new Swiss company is going to produce!

Emilie T.

2017-11-02T10:42:32

Rated 4 out of 5

Great lens - sharp to the corners

Great lens - sharp to the corners. The only issue i have is that infinity focus is not where it should be... but there is an adjustment for that, I just haven't been able to do it correctly yet.

Brian B.

2017-09-02T09:40:41

Rated 3 out of 5

Manual focus-only design is impractical given alternatives

Lens works great on a tripod with immobile subjects (architecture, landscapes, astrophotography) but manual focus only design impractical given autofocus alternatives of comparable image quality. Returned lens to replace with Nikon 18-35mm AF-D.

ALEXANDER P.

2017-08-17T09:35:46

Rated 5 out of 5

The lens is on the heavy side. However is worth it

Awesome lens tack sharp

FELIX R.

2017-08-08T06:55:24

Rated 4 out of 5

Great lens!

First I would like to thank Ms. Trixie of Adorama for going out of way to make sure I get my lens before my vacation. Keep it up! Now, the lens arrived well packaged in a card board and the actual lens was inside a tin can! I bought the cheap Firefly version - but there is nothing cheap about this lens. The little expensive model is supposed to be all metal and few additions but this version is more than enough for my usage. It is by no means cheap plastic looking lens. The construction pro quality. Performance: The sharpness is is just wonderful even wide open and this is expected for most of the wide angle lens. The focus confirmation works very well with my Nikon and love the focus ring feel. Also bought a filter adapter for my 6 stop ND filter and works well. This is the main reason I bought this lens. You can attach filters in the front and / or at the back of the lens! Wide angle lenses are easy to focus manually because of large DOF. So if you are thinking about going wide, I would highly recommend giving this lens a try. Now, why I gave only 4 stars is that the tin can, was slightly damaged inside the original cardboard box. I am sure it was not fault of the Adorama but the original packager. The lens performs flawlessly and did not want to return/exchange the lens for that reason!

SHEKAR N.

2017-08-02T05:25:13

Rated 5 out of 5

Great lens for astrophotography!

I purchased this lens primarily for landscape astrophotography, and hopefully for daytime landscapes as well. So far I've only had one opportunity for a night shoot, but I'm impressed. The lens is quite sharp wide open, and coma and other abberations in the corners are low. Also, the infinity click stop appears to be accurate. The build quality is high, but the lens is actually lighter than I expected. I fully expect to get a lot of great images with this lens.

RYAN C.

2017-07-16T10:42:36

Rated 5 out of 5

Get this lens if you are on budget.

Sharp, lightweight, well built, reasonable price. I recommend it to every one.

HAIZHAN Z.

2017-06-27T12:31:52

Rated 5 out of 5

Great quality

Nice quality built lens and great images.

PATRICK N.

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IRIX 15mm f/2.4 Firefly Specifications

General

General

Jump to...
  • Lens Mount

    Canon EF Mount

  • Lens Format

    Full Frame

  • Lens Type

    Ultra-Wide Angle

  • Compatibility

    Designed For Use With: Canon 5D Mark IV, Canon 6D, Canon 6D Mark II, Canon 1DX Mark III, Canon 5D Mark II, Canon T7i, Canon 1DS Mark II, Canon 1DX, Canon 1DX Mark II, Canon 5D, Canon 5D Mark III, Canon 5DS, Canon 5DS R

    Compatible With Restrictions: Canon 10D, Canon 60D, Canon 60DA, Canon 70D, Canon 77D, Canon 7D, Canon 7D Mark II, Canon 80D, Canon 90D, Canon SL1, Canon SL2, Canon SL3, Canon T2i / 550D, Canon T3, Canon T3i, Canon T4i / 650D, Canon T5, Canon T5i / 700D, Canon T6, Canon T6i,

  • Lens Series

    Irix Firefly Series

  • Special Features

    Aspherical

  • Kit Style

    Base

  • MPN

    IL-15FF-EF

  • Color

    Black

  • Focus Type

    Manual Focus

  • Closest Focus Distance

    11.02" / 28cm

  • Distance Information

    No

  • Built-In Motor

    No

  • Fixed Focal Length

    15mm

  • Maximum Aperture

    f/2.4

  • Filter Size

    95mm

  • Angle Of View

    110°

  • Minimum Aperture

    f/22

  • Aspherical Elements

    Yes

  • ED Glass Elements

    Yes

Features

Jump to...
  • Image Stabilization Type

    No

  • Tripod Collar

    No

  • Waterproof / Water Resistant

    No

  • Dust Resistant

    No

Construction

Jump to...
  • Lens Elements / Groups

    15 Elements in 11 Groups

  • Diaphragm Blades

    9

  • Weight

    1.28lb / 581g

  • Dimensions

    4.49 x 3.94" / 114 x 100mm

  • UPC Code

    7640172190012

9 Accessories for IRIX 15mm f/2.4 Firefly Lens for Canon EF

  • All Accessories (9)
  • Filters (4)
  • Bags & Cases (1)
  • Cap Leash (1)
  • Cleaning Accessories (2)
  • Covers & Caps (1)

Designed For Use With:

  • Canon 5D
  • Canon 5D Mark II
  • Canon 5D Mark III
  • Canon 5D Mark IV
  • Canon 5DS
  • Canon 5DS R
  • Canon 6D
  • Canon 6D Mark II
  • Canon 1DX Mark III
  • Canon T7i
  • Canon 1DS Mark II
  • Canon 1DX
  • Canon 1DX Mark II

Compatible With Restrictions:*

* If using a APS-C Lens on a Full Frame Camera OR Full-Frame Lens on a APS-C Camera then Image sensor will be narrowed down to APS-C size.

  • Canon 10D
  • Canon 60D
  • Canon 60DA
  • Canon 70D
  • Canon 77D
  • Canon 7D
  • Canon 7D Mark II
  • Canon 80D
  • Canon 90D
  • Canon SL1
  • Canon SL2
  • Canon SL3
  • Canon T2i / 550D
  • Canon T3
  • Canon T3i
  • Canon T4i / 650D
  • Canon T5
  • Canon T5i / 700D
  • Canon T6
  • Canon T6i
  • Canon T6s
  • Canon T7
  • Canon T8i
  • Canon XS
  • Canon XSi / 450D
  • Canon XTi

Need Help?

For any questions about compatibility with this product, call us at 800-223-2500 or you can email us any time.

Models
IRIX 15mm f/2.4 Firefly Lens for Canon EF

SKU: IRXF1524EOS

MFR: IL-15FF-EF

$379.00

Special Order

Generally ships in 7-14 days, subject to availability

IRIX 15mm f/2.4 Blackstone Lens for Canon EF
$549.00

Special Order

Generally ships in 7-14 days, subject to availability

CompatibilityCanon 1DS Mark II, Canon 1DX, Canon 1DX Mark II, Canon 1DX Mark III, Canon 5D, Canon 5D Mark II, Canon 5D Mark III, Canon 5D Mark IV, Canon 5DS, Canon 5DS R, Canon 6D, Canon 6D Mark II, Canon T7iCanon 1DS Mark II, Canon 1DX, Canon 1DX Mark II, Canon 1DX Mark III, Canon 5D, Canon 5D Mark II, Canon 5D Mark III, Canon 5D Mark IV, Canon 5DS, Canon 5DS R, Canon 6D, Canon 6D Mark II, Canon T7i
Special FeaturesAsphericalAspherical
Kit StyleBaseBase
Lens TypeUltra-Wide AngleUltra-Wide Angle
Filter Size95mm95mm
Fixed Focal Length15mm15mm
Lens MountCanon EF MountCanon EF Mount
Maximum Aperturef/2.4f/2.4

About IRIX 15mm f/2.4 Firefly

FEATURED REVIEWS

Excellent Image Quality and well-thought out Features

By madison b.

Quite impressed with this lens and price. Image quality is excellent, and it has a number of nice additional features -- filter accommodation, infinity focus detent, focus lock, inclusion of two back lens caps. It also has a place to put gel filters in the mount, and a window in the lens cap to adjust a circular polarizer. Overall, good thought went into the ergonomic design of the lens. This focal length makes for impressive landscape shots, particularly with dramatic skies or an expansi...

View full Review

Irix 15mm Firefly

By Gary S.

I bought this lens for Milky Way photography in which a fast lens is an advantage if not a must. Accurate infinity focus is critical and this lens is calibrated well right out of the box. It focuses best on stars at the full infinity setting. I've had other wide angle prime lenses that were way off in this respect. I had a bit of an issue attaching the included lens shade which didn't seem to fit properly. I contacted Irix support by email and they were very responsive. Problem solved. ...

View full Review

innovative technology encased in a smart design

Torn between smart technology and a classical design? With our Irix Blackstone 15mm f/2.4 lens, you can have both.

We have matched timeless design decisions with maximum functionality to offer you the perfect piece of durable technology. The solid aluminium and magnesium body ensures foolproof lens protection, even in the most extreme situations. Easy operation is achieved in all lighting conditions thanks to our engraved fluorescent markings and infinity click, just some of our many ingenious, photographer-friendly developments.

a lightweight option with no optical compromises

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.

Blackstone

Blackstone

  • durable Al-Mg body
  • engraved fluorescent markings

Firefly

Firefly

  • ultra-lightweight construction
  • ergonomic focus ring

extreme weather resistance

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.

15 mm Lens Comparison

Irix 15mm f/2.4. Optical system

Key Features

  • Capture stunning landscapes with the Irix 15mm lens's ultra-wide 110° angle of view.
  • The fast f/2.4 aperture on this Irix lens excels in low light, perfect for night photography.
  • Achieve sharp, detailed images with the Irix lens's 15 elements in 11 groups optical design.
  • Manual focus gives you precise control for creative focus effects with this Irix prime lens.
  • Durable build quality ensures the Irix 15mm Firefly lens withstands demanding shooting conditions.
  • Explore unique perspectives with this 15mm wide angle lens, ideal for real estate photography.

What's in the box:

  • IRIX 15mm f/2.4 Firefly Lens
  • Lens Hood
  • Soft Pouch
  • IRIX 2 Year Warranty