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Description
IRIX 11mm f/4 Firefly Lens for Nikon FNikon F Mount FX Format Aperture Range: f 4 to f 22 Three Aspherical Elements Two ED and Four HR Elements Neutrino Coating Manual Focus Design with Focus Lock Rubberized Focus Ring Depth of Field and Focus Distance Scales Weather Sealed ABS Plastic Housing Rounded Nine Blade Diaphragm A versatile ultra wide prime lens, the Nikon F mount 11mm f 4 Firefly Lens from Irix balances a sophisticated optical design with a lightweight, durable physical
- Nikon F-Mount/FX Format
- Aperture Range: f/4 to f/22
- Three Aspherical Elements
- Two ED and Four HR Elements
- Neutrino Coating
- Manual Focus Design with Focus Lock
- Rubberized Focus Ring
- Depth of Field and Focus Distance Scales
- Weather-Sealed ABS Plastic Housing
- Rounded Nine-Blade Diaphragm
A versatile ultra-wide prime lens, the Nikon F-mount 11mm f/4 Firefly Lens from Irix balances a sophisticated optical design with a lightweight, durable physical construction. Aspherical, extra-low dispersion, and high-refractive index elements are used to suppress color fringing, chromatic and spherical aberrations, as well as unwanted distortion, and also contribute to producing a high degree of sharpness and clarity. Additionally, a Neutrino coating has been applied to limit lens flare and ghosting for improved contrast and color accuracy when working in strong lighting conditions.
In addition to the imaging performance, this 11mm f/4 utilizes a manual focus design for fine-tuned control, and incorporates a unique positive focus lock to secure the focusing position at any point for consistent, repeatable shooting. As the Firefly version of this focal length, this lens is also distinguished by a lightweight ABS plastic exterior, printed lens markings, and weather-sealing about the lens housing to permit working in trying environmental conditions.
- The Firefly version of the 11mm f/4 lens features a lightweight ABS plastic exterior construction that is sealed against moisture and dust along the main body of the lens. The Firefly construction also incorporates a rubber focus ring for improved grip and control, and has printed focus distance and depth of field scales to aid working with pre-focusing and hyperfocal focusing techniques.
- Ultra wide-angle prime designed for FX-format Nikon F-mount DSLRs, this lens can also be used on DX models where it provides a 16.5mm equivalent focal length.
- Three aspherical, four high-refractive index, and two extra-low dispersion elements are featured within the optical design to limit both spherical and chromatic aberrations, as well as color fringing and distortion, for improved clarity, sharpness, and even illumination.
- A Neutrino coating has been applied to limit lens flare and ghosting for improved contrast and color fidelity.
- Manual focus designed is benefitted by a positive focus lock mechanism to secure your focus position at any point to limit unwanted shifting of focus.
- A hard click stop indicates the infinity position on the focus ring for easy use in low-visibility conditions.
- Large depth of field scale benefits using hyperfocal and pre-focus techniques.
- Built-in petal-shaped lens hood blocks stray light in order to reduce lens flare, and also protects the front element of the lens.
- Rear of the lens accepts 30 x 30mm cut gel filters.
- Rounded nine-blade diaphragm contributes to smooth bokeh.
In the Box
IRIX 11mm f/4 Firefly Lens for Nikon F
- Front Lens Cap
- Rear Cap for Nikon F-Mount Lenses
- Soft Lens Pouch (Gray)
- Limited 5-Year Warranty
| Performance | |
|---|---|
| Focal Length | 11mm |
| Aperture | Maximum: f/4 Minimum: f/22 |
| Camera Mount Type | Nikon F |
| Format Compatibility | 35mm Film / Full-Frame Digital Sensor |
| Angle of View | 126° |
| Minimum Focus Distance | 10.83" (27.5 cm) |
| Elements/Groups | 16 / 10 |
| Diaphragm Blades | 9, Rounded |
| Features | |
|---|---|
| Autofocus | No |
| Physical | |
|---|---|
| Filter Thread | Rear Gel: |
| Dimensions (DxL) | Approx. 4.65 x 4.06" (118 x 103 mm) |
| Weight | 1.61 lb (730 g) |
| Packaging Info | |
|---|---|
| Package Weight | 3.1 lb |
| Box Dimensions (LxWxH) | 7.4 x 5.8 x 5.8" |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.4 ★★★★★
Based on 19 reviews
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Product Reviews
★★★★★ 4
Very strong and cute tumbler
Size: 40 Ounces, Color: Rose Quartz 2.0, Size: 40 Ounces, Color: Rose Quartz 2.0
Great quencher to get. I got this for my self and I love it so much. It's super cute and the color I got is a light soft pink. The size is big which is great since I like having enough coffee to last me all day. It keeps my drinks cold and warm or what ever temperature it is for a good amount of time which is great for anyone who is out for long periods of time. The quality overall is very good. The handle is big, comfortable and easy to grip and the quencher fits perfectly on my gym bag. Only downside is that it did get a smudge on it after I removed the paper that it had on the bottom. I tried removing the smudge it feels sticky like glue but it didnt get removed so I had to put a sticker over it to cover it up.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 5, 2026
★★★★★ 5
Smells amazingly like cherry, but expect a mess under the feeder.
Style: Wild Bird Food, Style: Wild Bird Food
This is a fantastic budget seed blend to keep your backyard feeders full during the busy seasons. I put a banana in the picture next to this massive 10-pound bag for scale, though I wouldn't recommend leaving the fruit out there unless you want to feed the local raccoons instead. The most surprising part of this bag is the smell—it has a very strong, sweet cherry scent right out of the bag that genuinely seems to bring in the local cardinals and blue jays faster than plain seed.
THE GOOD:
• The cherry flavoring actually works as an attractant, and the sheer volume of seed you get for the price makes this an excellent value for high-traffic yards.
• It brings in a huge variety of ground-feeding birds, especially mourning doves and juncos.
THE TRADE-OFF:
• This is a "value" mix, which means it contains a very high percentage of filler seeds like milo and cracked corn. Finicky songbirds will actively kick the milo out of the hanging feeder to get to the black oil sunflower seeds, creating a massive pile of rejected seed on the ground.
THE BOTTOM LINE:
A great-smelling, budget-friendly birdseed that attracts a ton of wildlife, provided you don't mind the ground-feeders cleaning up the mess underneath.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 30, 2026
★★★★★ 5
Has attracted a mix of birds.
Style: Wild Bird Food
Great value for the price. Since putting this out, we’ve had so many different kinds of birds visiting our yard. The birds seem to love the mix, and it has definitely brought more activity to our feeders.
I also compared prices before purchasing, and this was very comparable to similar products and bag sizes. Overall, it’s a quality bird seed at a fair price, and I would absolutely buy it again
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 20, 2026
★★★★★ 5
Great for local birds
Style: Wild Bird Food
This bird seed has been a great find for attracting birds here in North Texas! Within just a couple of days of putting it out, we started seeing a noticeable increase in activity. It brings in a nice variety too—cardinals, finches, doves, and even the occasional blue jay.
The mix seems fresh and well-balanced, with very little waste. I also appreciate that it doesn’t have a ton of filler seeds that birds usually ignore. Everything in the blend actually gets eaten, which makes it feel like a better value.
It holds up well in our unpredictable Texas weather, and I haven’t had issues with mold or clumping. Overall, if you’re looking to attract a wide range of local birds and keep your feeder busy, this is definitely worth trying!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 28, 2026
★★★★★ 5
Great Bird Attraction & Solid Value for the Price
Style: Wild Bird Food
This bird seed has been a great addition to our yard. It attracts a wide variety of birds + they seem to really enjoy the cherry flavor.. it doesn’t sit untouched like some other mixes I’ve tried.
The quality is solid, with a good mix that looks fresh and not overly dusty. It also seems easy for the birds to digest, as they keep coming back + there’s minimal waste left behind. I mean.. enjoying the bird without the poop - WIN!
The 10-pound bag is a great size.. enough to last a while without constantly needing to restock. For the quantity you get, it’s definitely good value for the money.
Overall, a reliable choice if you’re looking to attract more birds without overspending.
If your debating.. BUY NOW
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 2, 2026
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