50mm F1.4

FULL FRAME HIGH SPEED

  • Internal Focus
  • Low Light
  • Full Frame
  • Low CA
  • Bokeh
  • Low Flare & Ghost
  • Circular Aperature

User manual can be downloaded here: Download

The 50mm f/1.4 AS IF UMC Lens from Rokinon offers a standard 50mm focal length in the full-frame format and a very fast f/1.4 maximum aperture for effective low light capture, fast shutter speed shooting and shallow depth of field control. When used on cameras with an APS-C format sensor its 35mm focal length equivalence is 75mm. 

The optical design of the lens consists of 9 elements in 6 groups including one hybrid aspherical element and one aspherical element to reduce chromatic aberrations. Also, lens elements are coated with an Ultra Multi-Coating to improve light transmission and minimize flare and ghosting. Eight diaphragm blades create a circular aperture for more attractive out-of-focus highlights.

As a manual focus and manual aperture lens, it provides a wide, rubberized focus ring and clear aperture, distance and depth of field markings. Its internal focus system will not extend the length of the lens while focusing and an included petal shape lens hood blocks unwanted light and protects the lens.

  • Standard length prime lens for full-frame cameras, also compatible with APS-C cameras on which it has a 35mm focal length equivalence of 75mm
  • Very fast maximum aperture of f/1.4 for effective low light capture and shallow depth of field focus control
  • Hybrid aspherical and aspherical lens elements control chromatic aberrations for clear and color-accurate images
  • Ultra Multi-Coating (UMC) improves light transmission and reduces ghosting and flare
  • Manual focus lens with internal focus system
  • Eight-blade diaphragm creates circular aperture
  • Includes removable petal-shaped lens hood

Canon

Model: 50M-C
MSRP: $499
UPC: 0-84409-76409-3
Focal Length: 50mm
Maximum Aperture: F1.4
Coverage: Full Frame (FX)
Optical Construction: 9 Glass elements in 6 Groups
Aperture Range: F1.4 to F22
Diaphragm Blades: 8
Coating: Ultra Multi-Coating
Minimum Focusing Distance: 17.7 (0.45m)
Filter Size: 77mm
Lens Hood: Removable Petal Shaped
Maximum Diameter: 3.21” (81.6mm)
Weight: 18.9oz (535g)
Length: 2.94” (74.7mm)
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.