Please note that information and links on this page may be incorrect or outdated due to this model no longer being in production.

Specifications


Focal length 8mm (35mm equivalent focal length: 16mm)
Maximum / Minimum aperture F3.5 / F22
Lens construction 10 elements in 6 groups (1 ED lens)
Splashproofing Dustproof/splashproof mechanism
Angle of view 180°
Closest focusing distance 0.135m
Maximum image magnification 0.22x (35mm equivalent maximum image magnification:0.44x)
Minimum field size 75 x 132mm
Number of diaphragm blades 7 (circular aperture diaphragm)
Filter size -
Dimension (max. diameter x total length) Ø79 x 77mm
Weight 485g

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: 8mm)

  0.135 0.3 0.4 0.5 0.7 1.0 2.0 3.0 5.0
3.5 0.134 ~ 0.136 0.268 ~ 0.348 0.333 ~ 0.519 0.390 ~ 0.742 0.483 ~ 1.470 0.588 ~ 5.718 0.784 ~ ∞ 0.882 ~ ∞ 0.979 ~ ∞ 1.173 ~ ∞
4 0.134 ~ 0.137 0.264 ~ 0.355 0.327 ~ 0.542 0.380 ~ 0.795 0.466 ~ 1.735 0.561 ~ 16.562 0.733 ~ ∞ 0.816 ~ ∞ 0.898 ~ ∞ 1.055 ~ ∞
5.6 0.133 ~ 0.137 0.253 ~ 0.388 0.306 ~ 0.647 0.349 ~ 1.095 0.415 ~ 5.637 0.483 ~ ∞ 0.596 ~ ∞ 0.645 ~ ∞ 0.691 ~ ∞ 0.773 ~ ∞
8 0.132 ~ 0.138 0.239 ~ 0.451 0.282 ~ 0.928 0.315 ~ 2.675 0.363 ~ ∞ 0.409 ~ ∞ 0.479 ~ ∞ 0.507 ~ ∞ 0.533 ~ ∞ 0.575 ~ ∞
11 0.131 ~ 0.140 0.223 ~ 0.607 0.256 ~ 3.032 0.280 ~ ∞ 0.313 ~ ∞ 0.342 ~ ∞ 0.384 ~ ∞ 0.399 ~ ∞ 0.413 ~ ∞ 0.435 ~ ∞
16 0.130 ~ 0.142 0.206 ~ 1.464 0.230 ~ ∞ 0.246 ~ ∞ 0.268 ~ ∞ 0.285 ~ ∞ 0.309 ~ ∞ 0.317 ~ ∞ 0.324 ~ ∞ 0.336 ~ ∞
22 0.128 ~ 0.146 0.189 ~ ∞ 0.205 ~ ∞ 0.215 ~ ∞ 0.228 ~ ∞ 0.239 ~ ∞ 0.252 ~ ∞ 0.256 ~ ∞ 0.260 ~ ∞ 0.265 ~ ∞

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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