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Olympus 45mm f/1.2 Pro Lens

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A large-diameter, medium telephoto lens which emphasises the subject for impressive photos

This large-diameter medium telephoto lens features the perfect 90mm focal length (35mm equivalent) for portraits. Commitment to a lens design that delivers smoothly blending, beautiful defocusing effects and excellent resolution result in outstanding imaging performance.
 

Delivering both the most beautiful bokeh and outstanding resolution.

Beautiful feathered bokeh from the maximum F1.2 aperture

The M.Zuiko Digital ED 45mm F1.2 PRO delivers beautiful feathered bokeh that blends the image from focused sections to out-of-focus sections and provides a smooth impression to the defocused background, providing more depth to the image by making the subject stand out further.

Beautiful feathered bokeh made possible by an ultra-high precision aberration measurement instrument

Beautiful feathered bokeh was achieved thanks to an ultra-high precision aberration measurement instrument developed incorporating high-precision measurement technologies used in advanced microscope development. This measurement instrument was used in research stages to measure the characteristics of historically acclaimed lenses, which would become the base for newly developed lenses. In development stages, the instrument was used to create a lens design that optimizes the level of aberrations, while virtually eliminating all unwanted aberrations.

High resolution from extravagant use of special lenses

Optimal placement of 3 cemented ED lenses effectively correct  unfocused colour bleeding (axial chromatic aberration) common to large-diameter lenses as well as colour bleeding (magnification chromatic aberration) at the screen periphery. Also, an aspherical lens is placed near the aperture and 4 HR lenses are employed to achieve thorough suppression of comatic aberration. The optimal lens placement for a medium telephoto lens results in excellent optical performance that delivers beautiful feathered bokeh and accurate depiction of points even at the widest aperture setting.

Excellent close-up shooting ability

This lens has excellent close-up shooting abilities with a closest focusing distance of 50 cm, and shooting magnification of 0.1x (35mm equivalent: 0.2x). You can get closer to subjects to emphasize background bokeh.

Z Coating Nano for clear image quality

Coating technology is employed which coats the lens surface with a layer of nanoscale size particles that have air in the centre, resulting in a coating with a similar refractive index as air and reduced surface reflection. Ghosts and flaring are significantly reduced for sharp, clear image quality.

Fast & high-precision AF

MSC mechanism making fast and silent AF possible

Despite being a large diameter F1.2 lens, a lightweight focusing unit is made possible via the MSC (Movie & Still Compatible) mechanism. A screw drive mechanism is used as the core drive system of the MSC mechanism, and a stepping motor is used as the drive motor.
 

High-precision AF across all focusing points

On-chip Phase Detection AF used on the OM-D E-M1 Mark II has no light flux limitations, making all-cross AF possible even when a large-diameter F1.2 lens is attached. This provides coverage for the all focusing points to the edges of the image for high-precision focusing.
 

Eye Priority AF demonstrates its power during portrait shooting

When used in conjunction with Eye Priority AF on the OM-D E-M1 Mark II, it is possible to capture portraits that are sharply focused on the subject's eyes.

Excellent mobility

Amazingly compact, lightweight system

This large-diameter, maximum aperture F1.2 lens is compact and lightweight. It is approximately 400 g, resulting in an amazingly compact lightweight system at only approximately 974 g when paired with the OM-D E-M1 Mark II.
 

Reliable dustproof, splashproof, and freezeproof construction

Hermetic sealing across the entire lens results in highly reliable dustproof, splashproof, and freezeproof performance. You can feel comfortable shooting anywhere, never worrying about dust, rain, or inclement weather.
 

Controls that meet the demands of pros

Controls are designed to meet the demands of pros, including a focus ring which provides for comfortable focusing, and an L-Fn button which can be operated as you keep your eye to the viewfinder.

 

When focusing on a subject, there is an area behind and in front of the focused point that is also in focus. This area is called depth of field. The amount of area behind a focused point will always be greater than the area in front of the focused point regardless of aperture. Depth of field becomes deeper when the focal length is short (wide-angle lens), the focusing distance is long, and aperture is small.

Depth of field tables (focal length: 45mm)
Columns: aperture values / Rows: focusing distance (m) [1]
 

  0.5 0.7 1 1.5 2 4 6 8 12
1.2 0.498
to
0.502
0.696
to
0.704
0.990
to
1.010
1.478
to
1.523
1.960
to
2.042
3.837
to
4.178
5.637
to
6.414
7.364
to
8.758
10.617
to
13.802
91.233
to ∞
2.0 0.497
to
0.503
0.693
to
0.707
0.986
to
1.015
1.466
to
1.536
1.939
to
2.066
3.753
to
4.283
5.454
to
6.670
7.053
to
9.246
9.977
to
15.064
58.422
to ∞
2.8 0.496
to
0.504
0.691
to
0.710
0.980
to
1.021
1.453
to
1.551
1.914
to
2.094
3.659
to
4.413
5.256
to
6.994
6.723
to
9.886
9.326
to
16.854
41.314
to ∞
4 0.494
to
0.506
0.687
to
0.714
0.972
to
1.030
1.434
to
1.573
1.881
to
2.136
3.535
to
4.610
5.001
to
7.510
6.308
to
10.957
8.541
to
20.525
29.256
to ∞
5.6 0.491
to
0.509
0.682
to
0.720
0.960
to
1.043
1.408
to
1.606
1.836
to
2.198
3.373
to
4.923
4.678
to
8.391
5.801
to
12.953
7.632
to
28.389
20.702
to ∞
8 0.488
to
0.513
0.674
to
0.728
0.945
to
1.063
1.374
to
1.654
1.776
to
2.293
3.169
to
5.446
4.290
to
10.058
5.212
to
17.446
6.639
to
65.736
14.673
to ∞
11 0.483
to
0.518
0.664
to
0.740
0.924
to
1.091
1.327
to
1.729
1.698
to
2.442
2.919
to
6.417
3.840
to
14.026
4.560
to
34.460
5.610
to ∞
10.405
to ∞
16 0.477
to
0.526
0.651
to
0.759
0.896
to
1.135
1.268
to
1.847
1.599
to
2.692
2.629
to
8.595
3.347
to
31.971
3.877
to ∞
4.606
to ∞
7.382
to ∞
  •  
  •  
  • *1 The diameter of the permissible circle of confusion is 1/60mm.
  •  
  • *Specifications are subject to change without notice.
 

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