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Samyang Pentax K mount Ultra-wide prime

Samyang 16mm T2.6 ED AS UMC

Quick answer

The Samyang 16mm T2.6 ED AS UMC is a ultra-wide prime lens covering 16mm at f/2.6 for the Pentax K mount. Its bright maximum aperture handles indoor and evening light reasonably well.

Focal
16mm
Aperture
f/2.6
Min focus
0.3m
AF motor
None

What 16mm sees

Full frame crop 1.0×
107° 96.7° horizontal
APS-C crop 1.5× → 24mm
84.1° 73.7° horizontal

Diagonal angle of view. Frames drawn to scale at 16mm. Calculated from the focal length and crop factor, not measured.

Open the field-of-view calculator

Samyang 16mm T2.6 ED AS UMC specifications

Optics

Focal length
16mm
Maximum aperture
f/2.6
Format coverage
Full frame
Optical construction
14 elements in 11 groups

Focus

Autofocus motor
None
Minimum focus distance
0.3 m

Physical

Length
94.6 mm
Diameter
81.65 mm

General

Brand
Samyang
Mount
Pentax K
Lens type
Prime

Specification source: lksamyang.com

What can you shoot with the Samyang 16mm T2.6 ED AS UMC?

At 16mm this is a ultra-wide prime, which typically suits:

  • Landscapes and big skies
  • Architecture and interiors
  • Astrophotography and night skies

Its bright maximum aperture handles indoor and evening light reasonably well.

Frequently asked questions

What mount does the Samyang 16mm T2.6 ED AS UMC use?

It uses the Pentax K mount, so it fits Pentax K cameras directly.

What is the focal length of the Samyang 16mm T2.6 ED AS UMC?

It is a fixed 16mm lens with a maximum aperture of f/2.6. That makes it a ultra-wide lens.

Is the Samyang 16mm T2.6 ED AS UMC a prime or a zoom lens?

It is a prime lens with a fixed 16mm focal length. Primes usually open wider than zooms; this one opens to f/2.6.

What is the Samyang 16mm T2.6 ED AS UMC equivalent on a crop sensor?

On APS-C (1.5x crop) it frames like 24mm on full frame, with a 73.7° horizontal and 84.1° diagonal field of view. These figures are calculated from the focal length and crop factor.

Which cameras does the Samyang 16mm T2.6 ED AS UMC fit?

Any Pentax K-mount camera, including Pentax *ist DL, Pentax *ist DS, Pentax K-01, Pentax K-1, and Pentax K-3 and 24 more.