N°958050 · Family detail
IrixWide·PENTAX K mount·2016
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
Summary02
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 sourcesWhere can this lens be adapted?
The Pentax K mount has a flange distance of 45.46 mm. A plain adapter fits a camera whose flange distance is at least 1.46 mm shorter. How lens adapters work
- Pentax DA and FA J lenses have no aperture ring. Use an adapter with its own aperture control.
- Pentax DA lenses are made for APS-C.
- Sony EAdapter · 27.46 mm
- Canon RFAdapter · 25.46 mm
- Nikon ZAdapter · 29.46 mm
- Fujifilm XAdapter · 27.76 mm
- L-MountAdapter · 25.46 mm
- Micro Four ThirdsAdapter · 26.21 mm
- Fujifilm G (GFX)Adapter · 18.76 mm
- Canon EF-MAdapter · 27.46 mm
- Canon EFAdapter · 1.46 mm
A rear element that sticks out can hit the camera mirror.
No plain adapter reaches infinity focus on: Nikon F.
Sources03
photographylife.comVisit ↗
Other Mounts03
This lens family is also indexed in 2 other mounts.