IRIX 15mm F/2.4 Firefly

Specifications01

MountPENTAX K

Focal length15mm

Max aperturef/2.4

TypeWide · Prime

Release year2016

Weight581 g

Filter size95 mm

Physical length100 mm

Aperture blades9

Optical elements15

Additional Info02

Optical Groups11

Field Notes02

IRIX 15mm F/2.4 Firefly is a wide-angle prime lens for Pentax K-mount, intended for landscape, architecture, and night/low-light shooting with a fast f/2.4 aperture.

AI-assisted summary — verify against linked sources

Catalog note · source: photographylife

Sources03

photographylife.comVisit ↗

Other Mounts03

This lens family is also indexed in 2 other mounts.

CANON EFView lens

Irix Firefly 15mm F/2.4

15mmf/2.4

NIKON FView lens

Irix Firefly 15mm F/2.4

15mmf/2.4