Irix 45mm f/1.4 Dragonfly Prime Lens for Nikon F

The Irix 45mm f/1.4 Dragonfly is a manual focus prime lens that delivers exceptional sharpness and a bright f/1.4 aperture for full-frame Nikon F cameras. Its weather-sealed, magnesium-alloy construction ensures reliability in challenging conditions, while the 45mm focal length offers a natural perspective ideal for portraits, street, and documentary work.

Advantages

The fast f/1.4 aperture excels in low light and provides beautiful background separation with rounded 9-blade diaphragm for smooth bokeh. The click/de-click aperture ring enables silent, stepless adjustments for video. Electronic contacts transmit EXIF data, and the durable build withstands dust and moisture.

Suitable for

• Portrait and wedding photographers needing shallow depth of field
• Street and documentary shooters wanting a discreet, natural view
• Videographers requiring de-clicked aperture control
• Adventurers needing weather-sealed reliability

Key specifications

• Focal length: 45mm
• Maximum aperture: f/1.4
• Minimum aperture: f/22
• Lens mount: Nikon F
• Format: Full-frame
• Angle of view: 50.1° diagonal
• Minimum focus distance: 0.4 m
• Optical design: 11 elements in 9 groups
• Diaphragm blades: 9 rounded
• Filter size: 77 mm
• Focus type: Manual
• Weather sealing: Yes
• Construction: Aluminum-magnesium alloy
• Electronic contacts: Yes
• Aperture ring: Yes, with click/de-click switch

Recommendations

Pair with a 77mm UV or protection filter to safeguard the front element. For video, use the de-clicked aperture mode and a follow focus system for precise control.