§ 03 Head to head

Kowa Prominar 12 mm f/1.8 vs Samyang 12mm F2.0 NCS CS

Kowa 12mm f/1.8 is 0.3 stops brighter maximum aperture. Samyang 12mm f/2.0 is 181 g lighter.

The Kowa Prominar 12 mm f/1.8 is a 12mm f/1.8 prime, and the Samyang 12mm F2.0 NCS CS is a 12mm f/2.0 prime. On paper the Samyang 12mm F2.0 NCS CS comes out ahead, 4 advantages to 2, but which one suits you depends on what you shoot.

01

Key differences

From manufacturer specifications

Why is the Kowa Prominar 12 mm f/1.8 better than the Samyang 12mm F2.0 NCS CS?

  • 0.3 stops brighter maximum aperture (f/1.8 vs f/2.0)
  • More aperture blades (9 vs 6)

Why is the Samyang 12mm F2.0 NCS CS better than the Kowa Prominar 12 mm f/1.8?

  • 181 g lighter (260 g vs 441 g)
  • 18 mm shorter (59 mm vs 76.5 mm long)
  • Smaller filter thread (67 mm vs 72 mm)
  • Covers a larger sensor format (APS-C vs Micro Four Thirds)
02

Which should you buy?

By use
  • landscape For landscape photography, the Samyang 12mm F2.0 NCS CS has the edge: it is 181 g lighter to carry.
  • architecture For architecture, the Samyang 12mm F2.0 NCS CS has the edge: it is 181 g lighter to carry.
  • low-light For low-light shooting, the Kowa Prominar 12 mm f/1.8 has the edge: its f/1.8 aperture gathers more light than f/2.0.
  • astrophotography For astrophotography, the Kowa Prominar 12 mm f/1.8 has the edge: its f/1.8 aperture gathers more light than f/2.0.
03

Specification

17 rows · better value flagged ◆
SpecificationKowa Prominar 12 mm f/1.8Samyang 12mm F2.0 NCS CS
Focal length12mm 12mm
Maximum aperturef/1.8 ◆f/2.0
Minimum aperturef/16 f/22
Lens typePrime lens Wide-angle prime lens
FormatMicro Four Thirds APS-C
Weight441 g (15.56 oz) 260 g (0.57 lbs) ◆
Dimensions90.5 x 76.5 mm 73 mm (diameter) x 59 mm (length)
Minimum focusing distance0.2 m (7.87 inches) 0.2 m (7.87 in)
Maximum magnification—0.08x
Image stabilizationNo No
Weather sealing—No
Aperture ringYes Yes
Aperture blades9 ◆6
Optical construction12 elements / 10 groups 12 elements in 10 groups
Filter size72 mm 67 mm ◆
Lens mountMicro Four Thirds Canon EF-M, Fujifilm X, Micro Four Thirds, Samsung NX, Sony E
Released2014 2014
04

Size

Drawn to relative scale
  • A · Kowa
  • B · Samyang
  • 76.5 × 90.5 mm
  • 59 × 73 mm

The Kowa Prominar 12 mm f/1.8 is 18 mm longer and 181 g heavier than the Samyang 12mm F2.0 NCS CS.

05

Sample frames

Shot on each lens

Samyang 12mm F2.0 NCS CS

Big Skies
Big Skies by RobLesliePhotography
Mach 1 Drama
Mach 1 Drama by RobLesliePhotography
DSCF0571
DSCF0571 by RobLesliePhotography
A rare Cambridgeshire Aurora
A rare Cambridgeshire Aurora by Tom Codd Photography
06

Video reviews

4 on YouTube
Video thumbnail for Kowa Prominar 12 mm f/1.8 review 1
Video thumbnail for Kowa Prominar 12 mm f/1.8 review 2
Video thumbnail for Samyang 12mm F2.0 NCS CS review 1
Video thumbnail for Samyang 12mm F2.0 NCS CS review 2
07

Questions

Which lens has the brighter aperture, the Kowa Prominar 12 mm f/1.8 or the Samyang 12mm F2.0 NCS CS?
The Kowa Prominar 12 mm f/1.8 opens to f/1.8, against f/2.0 on the Samyang 12mm F2.0 NCS CS, 0.3 stops brighter.
Which is lighter, the Kowa Prominar 12 mm f/1.8 or the Samyang 12mm F2.0 NCS CS?
The Samyang 12mm F2.0 NCS CS weighs 260 g, 181 g less than the Kowa Prominar 12 mm f/1.8 (441 g).
Do the Kowa Prominar 12 mm f/1.8 and the Samyang 12mm F2.0 NCS CS have image stabilization?
No, neither lens has optical image stabilization; rely on in-body stabilization if your camera has it.
Is the Kowa Prominar 12 mm f/1.8 or the Samyang 12mm F2.0 NCS CS better for landscape photography?
For landscape photography, the Samyang 12mm F2.0 NCS CS has the edge: it is 181 g lighter to carry.
Is the Kowa Prominar 12 mm f/1.8 or the Samyang 12mm F2.0 NCS CS better for architecture?
For architecture, the Samyang 12mm F2.0 NCS CS has the edge: it is 181 g lighter to carry.
08

Other comparisons