Samyang's 14mm fisheye for Pentax K — the popular ultra-wide in K mount with body SR benefit.
The Samyang 14mm f/2.8 IF ED UMC is an ultra-wide manual-focus prime from Samyang for Pentax K-mount cameras, featuring internal focusing (IF), extra-low dispersion (ED) glass, and Ultra Multi-Coating (UMC). It provides extreme wide-angle coverage at f/2.8 maximum aperture for full-frame and APS-C Pentax bodies.
The lens delivers 14mm at f/2.8 with IF internal focusing that maintains constant barrel length, ED glass for chromatic aberration control at this extreme focal length, UMC coating for flare and ghosting reduction, fully manual focus and aperture, and full-frame coverage. No electronic contacts on the Pentax K version.
The 14mm f/2.8 is a popular choice for astrophotography and landscape photography on Pentax K-mount bodies — Pentax's in-body SR stabilisation applies to any K-mount lens including this one, which is an advantage for handheld wide-angle use. The IF design keeps the barrel compact regardless of focus position. UMC coating improves performance in night photography near point light sources.
Check the focus ring for smooth travel and verify infinity focus accuracy against stars or a distant structure. Inspect UMC-coated front element for cleaning marks or abrasion. Verify aperture ring operation. Note the absence of electronic contacts means no EXIF data is recorded on the body. Confirm that Pentax in-body SR operates with this lens via manual lens registration.