# Irix Firefly Black Lens 16 Elements 10 Groups Pentax K Mount

**URL:** https://aio.lv/en/product--irix-7640172190340--10531409
**Data updated:** 2025-12-30 08:47 (EET)
**Category:** Camera Lenses
**Manufacturer:** Irix
**Manufacturer code:** 7640172190340
**EAN:** 7640172190340
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 363.49 €
**Prices and availability valid until:** 2026-07-29 23:59
**Price without VAT (21%):** 300.40 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--irix-7640172190340--10531409

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 21.07.2026 | free |
| Pickup points | 24.07.2026 | 1.89 EUR |
| Courier delivery to door | 24.07.2026 | 4.99 EUR |

## Summary description

The Irix Firefly Black lens features a structure of 16 elements in 10 groups, a closest focusing distance of 0.275 m, and is compatible with Pentax K mount cameras. Its compact length of 118 mm makes it suitable for various photography styles, providing high-quality images and versatility for photographers.

## Long description

The Irix Firefly Black 11mm f/4 is an ultra-wide rectilinear full-frame lens with a 126° angle of view. Its optical design of 16 elements in 10 groups, including high-refractive, ED and aspherical elements, achieves minimal distortion and delivers high image quality while remaining compact and lightweight. The lens is built with a Pentax K mount, a minimum focusing distance of 0.275 m and a compact length of 118 mm, making it suitable for travel and outdoor photography where portability and durable construction are required.
Advantages
The lens combines extreme wide-angle coverage with minimal distortion — measured as low as 3.13% — thanks to a mix of high-refractive, ED and aspherical elements. Despite its robust aluminium and magnesium construction and weather-sealed design, the Firefly Black remains lightweight for comfortable handheld use and travel. Engraved fluorescent markings and an ergonomic, rubber-coated focus ring provide reliable operation in varied lighting and environmental conditions.
Suitable for
 Landscape and cityscape photography
 Architectural and interior photography where straight lines must be preserved
 Travel and hiking photography that requires a compact, lightweight lens
 Environmental and documentary photography in varied weather conditions
Key specifications
 Focal length: 11mm (ultra-wide, rectilinear)
 Maximum aperture: f/4
 Minimum aperture: f/22
 Lens structure: 16 elements in 10 groups
 Closest focusing distance: 0.275 m
 Angle of view: 126°
 Lens mount: Pentax K
 Length: 118 mm
 Colour: Black
How to use
Attach the lens to a Pentax K mount body and confirm secure engagement before use. Use manual focus via the rubber-coated focus ring for precise control; the engraved fluorescent markings assist focusing in low light. For landscapes or architectures, stop down toward f/8–f/11 for increased depth of field and sharpness across the frame. Maintain a working distance at or beyond the minimum focus distance of 0.275 m for close subjects.
Usage recommendations
To protect the lens and maintain performance, use the weather-sealed construction responsibly: keep lens and camera mounts clean, avoid prolonged exposure to heavy rain without additional protection, and store the lens in a dry place when not in use. For best optical results, use appropriate filters and a tripod when shooting at smaller apertures or in low-light situations.

## Specifications

### Lens system

| Feature | Value |
|---|---|
| Focus adjustment | Manual |
| Lens structure (elements/groups) | 16/10 |
| Closest focusing distance | 0.275 m |
| Minimum aperture number | 4 |
| Number of diaphragm blades | 9 |
| Maximum aperture number | 22 |
| Reproduction ratio | 1:13 |
| Fixed focal length | 11 mm |
| Lens mount interface | Pentax K |
| Lens viewing angle, diagonal | 126 |

### Weight & dimensions

| Feature | Value |
|---|---|
| Length | 118 mm |

### Packaging content

| Feature | Value |
|---|---|
| Bag included | Yes |

### Performance

| Feature | Value |
|---|---|
| Camera brands compatibility | Pentax |

### Design

| Feature | Value |
|---|---|
| Product colour | Black |

## FAQ

### How much does the Irix Firefly Black Lens cost, and is it available for purchase?

The price is 363.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 100 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 21.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

### Can Irix Firefly Black Lens be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Irix products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Irix service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: minimum aperture number, closest focusing distance, maximum aperture number, lens structure (elements/groups), lens mount interface, product colour, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

## Image

https://aio.lv/img/cache/product/10531409/64400324_large.webp