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Specifications


Focal length 50mm (35mm equivalent focal length: 100mm)
Maximum / Minimum aperture F2.0 / F22
Lens construction 11 elements in 10 groups (1 ED lens)
Splashproofing Dustproof/splashproof mechanism
Focusing system Floating
Angle of view 24°
Closest focusing distance 0.24m
Maximum image magnification 0.52x (35mm equivalent maximum image magnification:1.04x)
Minimum field size 33.3 x 25mm
Number of diaphragm blades 7
Filter size Ø52mm
Dimension (max. diameter x total length) Ø71 x 61.5mm
Weight 300g

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 (focal length: 50mm)

  0.24 0.3 0.4 0.5 0.7 1.0 2.0 3.0 5.0
2 0.236
to
0.237
0.300
to
0.300
0.399
to
0.401
0.498
to
0.502
0.695
to
0.705
0.990
to
1.011
1.955
to
2.048
2.896
to
3.112
4.711
to
5.327
78.755
to
2.8 0.236
to
0.237
0.299
to
0.301
0.398
to
0.402
0.497
to
0.503
0.693
to
0.707
0.985
to
1.015
1.936
to
2.068
2.855
to
3.161
4.601
to
5.476
55.727
to
4 0.236
to
0.237
0.299
to
0.301
0.398
to
0.402
0.496
to
0.504
0.691
to
0.710
0.979
to
1.022
1.911
to
2.098
2.799
to
3.233
4.455
to
5.702
39.428
to
5.6 0.236
to
0.237
0.299
to
0.301
0.397
to
0.403
0.494
to
0.506
0.687
to
0.714
0.971
to
1.031
1.877
to
2.141
2.724
to
3.341
4.263
to
6.055
27.907
to
8 0.236
to
0.237
0.298
to
0.302
0.395
to
0.405
0.492
to
0.508
0.682
to
0.719
0.960
to
1.044
1.831
to
2.206
2.624
to
3.507
4.018
to
6.638
19.765
to
11 0.236
to
0.238
0.297
to
0.303
0.394
to
0.407
0.489
to
0.512
0.675
to
0.728
0.944
to
1.064
1.769
to
2.305
2.496
to
3.773
3.718
to
7.690
14.004
to
16 0.235
to
0.238
0.296
to
0.304
0.391
to
0.410
0.484
to
0.517
0.665
to
0.740
0.923
to
1.093
1.689
to
2.462
2.335
to
4.229
3.364
to
9.923
9.933
to
22 0.235
to
0.239
0.295
to
0.306
0.388
to
0.414
0.478
to
0.525
0.651
to
0.758
0.895
to
1.137
1.588
to
2.727
2.141
to
5.108
2.968
to
16.926
7.053
to
  • Specifications are subject to change without notice.

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