ZUIKO DIGITAL ED 90-250mm F2.8 +

Interchangeable LensZUIKO DIGITAL ED 90-250mm F2.8

Specifications

Focal length 90-250mm (35mm equivalent focal length: 180-500mm)
Maximum / Minimum aperture F2.8 / F22
Lens construction diagram 17 elements in 12 groups (3 ED lenses)
Dustproof/splashproof mechanism Dustproof/splashproof mechanism
Focusing system Inner focus
Angle of view 14°-5°
Closest focusing distance 2.5m
Maximum image magnification 0.08x (35mm equivalent maximum image magnification: 0.16x)
Minimum field size 207 x 156mm
Number of diaphragm blades 9 (circular aperture diaphragm)
Filter size 105mm (exclusive protection filter PF-105 included)
Dimension (max. diameter x total length) Ø124 x 276mm
Weight 3,270g (with tripod adapter)

Depth of field

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 table (wide-end focal length: 90mm)

  2.5 3.0 5.0 ∞
2.8 2.467
to
2.534		 2.952
to
3.049		 4.866
to
5.142		 173.632
to
∞
4 2.455
to
2.547		 2.934
to
3.069		 4.814
to
5.201		 124.198
to
∞
5.6 2.436
to
2.567		 2.907
to
3.099		 4.741
to
5.290		 87.825
to
∞
8 2.411
to
2.596		 2.871
to
3.142		 4.642
to
5.420		 62.188
to
∞
11 2.376
to
2.639		 2.821
to
3.205		 4.509
to
5.617		 44.040
to
∞
16 2.328
to
2.701		 2.753
to
3.299		 4.334
to
5.921		 31.184
to
∞
22 2.265
to
2.795		 2.663
to
3.443		 4.108
to
6.415		 22.100
to
∞

Columns: aperture values Rows: focusing distance (m)*1

Depth of field table (middle focal length: 150mm)

  2.5 3.0 5.0 ∞
2.8 2.486
to
2.515		 2.980
to
3.021		 4.945
to
5.056		 473.416
to
∞
4 2.480
to
2.521		 2.971
to
3.029		 4.924
to
5.079		 338.524
to
∞
5.6 2.472
to
2.529		 2.960
to
3.041		 4.893
to
5.112		 239.271
to
∞
8 2.460
to
2.541		 2.943
to
3.059		 4.850
to
5.160		 169.317
to
∞
11 2.444
to
2.559		 2.921
to
3.084		 4.790
to
5.230		 119.796
to
∞
16 2.421
to
2.584		 2.889
to
3.120		 4.708
to
5.331		 84.713
to
∞
22 2.390
to
2.621		 2.846
to
3.173		 4.597
to
5.482		 59.926
to
∞

Columns: aperture values Rows: focusing distance (m)*1

Depth of field table (tele-end focal length: 250mm)

  2.5 3.0 5.0 ∞
2.8 2.493
to
2.507		 2.991
to
3.009		 4.977
to
5.023		 1305.874
to
∞
4 2.490
to
2.510		 2.987
to
3.013		 4.968
to
5.033		 933.736
to
∞
5.6 2.486
to
2.514		 2.982
to
3.019		 4.955
to
5.046		 659.922
to
∞
8 2.481
to
2.519		 2.974
to
3.026		 4.936
to
5.066		 466.933
to
∞
11 2.473
to
2.528		 2.963
to
3.038		 4.910
to
5.093		 330.317
to
∞
16 2.462
to
2.539		 2.949
to
3.053		 4.874
to
5.133		 233.531
to
∞
22 2.447
to
2.556		 2.928
to
3.076		 4.823
to
5.190		 165.150
to
∞

Columns: aperture values Rows: focusing distance (m)*1

  • 1: The diameter of the permissible circle of confusion is 1/60mm.
  • Specifications are subject to change without notice.

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