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IRIX 45mm f/1.4 Dragonfly Lens for Pentax K

SKU: IRX4514PX MFR: IL-45DF-PK
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Key Features

  • Capture stunning, sharp images with the Irix 45mm lens' exceptional image quality.
  • The f/1.4 aperture excels in low light, offering beautiful bokeh for portraits.
  • Enjoy smooth manual focus with AE confirmation chip for precise control of your shots.
  • Built tough, the Dragonfly lens features weather sealing for outdoor photography.
  • The 45mm focal length is perfect for versatile shooting, from landscapes to portraits.
  • Compatible with Pentax K mount cameras, this lens delivers outstanding performance.
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Questions & Answers

Shopper : Why Did You Choose This?THOMAS H : Quality and price

Reviews about this item

Review Summary

2023-02-02T03:25:10

Rated 5 out of 5

Irix 45mm F1.4 old school sharpness.

The lens is razor sharp. At F1.4 the depth of field is paper thin. I use " catch in focus" method and the firmness of the focusing barrel is a plus IMO. It's heavy and well built, and the balance was good with my K-1. I'm an old 2 1/4 film shooter so I'm used to working at a slower pace and manually focusing. If you are in a hurry I can not recommend. If you are patient and like to craft your images in camera, you will be very pleased.

DAVID S.

2021-05-05T11:55:49

Rated 5 out of 5

Phenomenal Astrophotography/Milkyway lens

Lens is phenomenal for astrophotography. Not as wide as some would like but still phenomenal. Paired with my Nixon D810 images are sharp and clean. Very well built and heavy lens for the price. You can't beat it for a 500 dollar lens.

JOSHUA K.

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IRIX Dragonfly Specifications

General

General

Jump to...
  • Lens Mount

    Pentax K

  • Lens Format

    Full Frame

  • Lens Type

    Standard

  • Compatibility

    Pentax K-1 Mark II, Pentax K-1

  • Lens Series

    Irix Dragonfly Series

  • Special Features

    Weather Resistant

  • Kit Style

    Base

  • MPN

    IL-45DF-PK

  • Color

    Black

  • Focus Type

    Manual Focus

  • Closest Focus Distance

    1.31 / 40cm

  • Fixed Focal Length

    45mm

  • Maximum Aperture

    f/1.4

  • Filter Size

    77mm

  • Angle Of View

    51.4°

  • Minimum Aperture

    f/22

Features

Jump to...
  • Image Stabilization Type

    No

Construction

Jump to...
  • Lens Elements / Groups

    11 Elements in 9 Groups

  • Diaphragm Blades

    9

  • Weight

    2lb / 910g

  • Dimensions

    3.43 x 4.06" / 87 x 103mm

  • UPC Code

    7640172191828

38 Accessories for IRIX 45mm f/1.4 Dragonfly Lens for Pentax K

  • All Accessories (38)
  • Filters (17)
  • Cleaning Accessories (17)
  • Lens Caps (2)
  • Bags & Cases (2)

Designed For Use With:

  • Pentax K-1 Mark II
  • Pentax K-1

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.

  • Pentax K-01
  • Pentax K-2000
  • Pentax K-3
  • Pentax K-3 II
  • Pentax K-30
  • Pentax K-5 IIs
  • Pentax K-50
  • Pentax K-500
  • Pentax K-7
  • Pentax K-70
  • Pentax KP
  • Pentax K-S1
  • Pentax K-S2

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 45mm f/1.4 Dragonfly Lens for Pentax K
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Save:$150.00 (25%)

In Stock

CompatibilityPentax K-1, Pentax K-1 Mark IIPentax K-1, Pentax K-1 Mark IIPentax K-1, Pentax K-1 Mark II
Special FeaturesWeather Resistant--
Kit StyleBaseBaseBase
Lens TypeStandardStandardStandard
Filter Size77mm49mm49mm
Fixed Focal Length45mm43mm43mm
Lens MountPentax KPentax KPentax K
Maximum Aperturef/1.4f/1.9f/1.9

About IRIX Dragonfly

FEATURED REVIEWS

Phenomenal Astrophotography/Milkyway lens

By JOSHUA K.

Lens is phenomenal for astrophotography. Not as wide as some would like but still phenomenal. Paired with my Nixon D810 images are sharp and clean. Very well built and heavy lens for the price. You can't beat it for a 500 dollar lens.

Irix 45mm F1.4 old school sharpness.

By DAVID S.

The lens is razor sharp. At F1.4 the depth of field is paper thin. I use " catch in focus" method and the firmness of the focusing barrel is a plus IMO. It's heavy and well built, and the balance was good with my K-1. I'm an old 2 1/4 film shooter so I'm used to working at a slower pace and manually focusing. If you are in a hurry I can not recommend. If you are patient and like to craft your images in camera, you will be very pleased.

After extensive research and design, the Irix 45mm f/1.4 Dragonfly Lens for Pentax K emerges as a superior choice for both professional and amateur photographers. This lens offers a unique alternative to the standard 35mm and 50mm focal lengths, providing a fresh perspective for those who appreciate the art of "normal" lens photography.

The lens features a fast aperture, delivering smooth bokeh and exceptional image quality even in low light conditions. Its classic focal length makes it a versatile tool for a variety of photography genres, from landscape to street photography.

One of the standout features of this lens is the Focus Lock. This innovative feature allows photographers to lock the focus ring at a specific position, proving invaluable for landscape photography, repetitive shooting, and maintaining a consistent distance from the subject.

The Irix 45mm f/1.4 lens also boasts a high-quality focus ring, modeled after the popular design found on the Irix 150mm f/2.8 1:1 Macro lens. Crafted from durable materials resistant to weather conditions, the focus ring offers an embossed texture for enhanced comfort and precision during manual focusing.

Ready to perform in any weather, this lens features laser-engraved focus and aperture markings filled with UV-reactive paint, ensuring readability even in low-light conditions. The lens is also equipped with weather sealing at four key points, safeguarding the lens interior and camera sensor from dust, moisture, and harsh weather conditions.

The Dragonfly finish of the Irix 45mm f/1.4 lens is a testament to its robust build quality. It combines sturdy metal components with lightweight composite materials for a durable yet comfortable handling experience. The lens maintains its compact size thanks to an internal focusing mechanism, allowing photographers to focus on capturing the perfect shot, regardless of the environment or weather conditions.

IRIX Dragonfly Features

  • Smooth bokeh
  • Fast f/1.4 aperture
  • Internal focusing
  • Weather-resistant construction
  • Aperture control straight from the camera
  • In-camera focus indication support
  • Semi-automatic modes (PASM) support
  • All exposure parameters are saved in EXIF data
  • 50-degree field of view
  • Focus Lock ring
  • Strong internal construction based on metal components
  • Anti-scratch finish
  • Anti-slip rubberized focusing ring with a special notch
  • Engraved markings filled with UV reactive paint
  • Superior dust and moisture protection
  • Includes a convenient hard case

Key Features

  • Capture stunning, sharp images with the Irix 45mm lens' exceptional image quality.
  • The f/1.4 aperture excels in low light, offering beautiful bokeh for portraits.
  • Enjoy smooth manual focus with AE confirmation chip for precise control of your shots.
  • Built tough, the Dragonfly lens features weather sealing for outdoor photography.
  • The 45mm focal length is perfect for versatile shooting, from landscapes to portraits.
  • Compatible with Pentax K mount cameras, this lens delivers outstanding performance.

What's in the box:

  • 45mm f/1.4 Dragonfly Lens (Pentax K-Mount)
  • Lens Hood
  • Front Lens Cap
  • 2x Rear Lens Caps
  • Hard Lens Case
  • Irix 2 Year Limited Warranty