100mm T3.1

FULL FRAME MACRO

  • Internal Focus
  • Full Frame
  • Low CA
  • Bokeh
  • Low Flare & Ghost
  • Circular Aperature
  • De-clicked Aperture
  • Non-Rotating Filter Mount
  • Macro

User manual can be downloaded here: Download

Utilizing a multi-layer coating process for consistent color rendition from lens to lens, the Rokinon 100mm T3.1 Cine DS Lens answers the challenge of assembling a set of lenses over time. Features industry standard geared focus and iris rings that share common position with other Rokinon Cine DS lenses. To aid focus pullers who have to work both sides of the lens, the aperture and focus scales are marked on both sides of the lens.

This 100mm lens produces a 24.8° angle-of-view when used with a full-frame sensor camera or a 35mm SLR. The 15 glass elements in 12 groups render sharply defined images with a minimum of distortion and chromatic aberrations, with a minimum focus distance of 1' from the lens. A removable lens hood provides flare protection when shooting without a matte box, and the lens's threaded front accepts 67mm filter rings.

  • Ultra Multi Coated lenses minimize flare and ghosting, and the lenses are color matched to a standard eliminating the need to acquire an entire set of lenses at the same time.
  • Industry-standard gearing for focus and aperture rings. Each lens in the Rokinon DS series shares common focus and iris gear ring positions, which speeds up lens changes as accessories such as follow focus units or iris motors don't have to be re-positioned.
  • Declicked aperture ring for smooth iris pulls.
  • A removable lens hood provides flare protection without a matte box.
  • The lens opens up to T3.1, creating extremely shallow depth of field.

Canon

Model: DS100M-C
MSRP: $649
UPC: 0-84438-76444-4
Focal Length: 100mm
Maximum Aperture: T3.1
Coverage: Full Frame (FX)
Optical Construction: 15 Glass Elements in 12 Groups
Aperture Range: T3.1 to T32
Diaphragm Blades: 9
Coating: Ultra Multi-Coating
Minimum Focusing Distance: 1.0 ft (0.307m)
Filter Size: 67 mm
Lens Hood: Removable
Maximum Diameter: 3.2” (82mm)
Weight: 25.57oz (725g)
Length: 4.85” (123.1mm)
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.