12mm F2.0

HIGH SPEEDWIDE ANGLE

  • Internal Focus
  • Low CA
  • Low Flare & Ghost
  • Low Coma
  • Nano Coating System

​The Rokinon 12mm f/2.0 NCS CS Lens is a prime wide-angle lens designed specifically for use with APS-C sized image sensors. Providing a 35mm-equivalent focal length of 18mm and a broad 98.9° angle of view, this lens is well-suited for architectural, interior, and landscape images. Its fast f/2.0 maximum aperture is further beneficial to working in low-light conditions.

Three extra-low dispersion elements and two aspherical elements have been incorporated into the optical design to minimize chromatic aberrations and distortion in order to produce sharper images. Additionally, a Nano Coating System (NCS) has been applied to the lens elements in order to reduce surface reflections and prevent lens flare and ghosting for improved light transmission and more contrast-rich imagery

  • Prime wide-angle lens provides a 35mm-equivalent focal length of 18mm, making it ideally suited for architectural and landscape subjects.
  • Fast f/2.0 maximum aperture benefits working in low-light conditions.
  • Three extra-low dispersion elements and two aspherical elements reduce chromatic aberrations and distortions in order to produce sharper images.
  • Nano Coating System improves light transmission and suppresses lens flare and ghosting for more contrast-rich, color-neutral images.

Canon M

Model: RK12M-M
MSRP: $499
UPC: 0-84438-76258-7
Focal Length: 12mm
Maximum Aperture: F2.0
Coverage: APS-C/Four Thirds
Optical Construction: 12 Glass Elements In 10 Groups
Aperture Range: F2.0 to F22
Diaphragm Blades: 6
Coating: Nano Coating System
Minimum Focusing Distance: 7.87”(0.2m)
Filter Size: 67mm
Lens Hood: Removable Petal Shaped
Maximum Diameter: 2.85”(72.5mm)
Weight: 8.64oz (245g)
Length: 2.32” (59.0mm)
1. Rokinon MTF charts use theoretical equations to plot performance and do not rely on subjective 
opinion, subject matter, camera features, software or other factors. They plot the contrast and resolution of a lens from the center to its edges, against a "perfect" lens that would transmit 100% of the light that passes through it. The contrast of a lens is important because it directly relates to resolution.

3. Rokinon tests are carried out with the lens at its maximum (widest) aperture (Ex. 24mm F1.4 lens is measured at F1.4 for MTF).

4. Zero on the chart’s X-axis (horizontal axis) 
represents the center of the lens. As a line moves right, it indicates the change of contrast and sharpness from the center to the edge of the image. 

5. The Y-axis (vertical axis) plots the transmission of light through the lens. It has a maximum value of "1.0" to indicate 100% transmittance of the light, which is not possible to achieve. 

6. The blue graph lines (10 lines/mm) represent contrast measurement. The red graph lines (30 lines/mm) represent resolution.

7. Sagittal lines (thick lines) represent the contrast 
measurements of line pairs that are parallel to an imaginary diagonal line that runs from the bottom left hand corner to the top right hand corner of a image frame. Meridonial lines (thin lines) represent line pairs that are perpendicular to the imaginary diagonal line.

8. The higher and straighter the blue lines, the better the contrast. The higher and straighter the red lines, the better the resolution.
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