Specifications


Focal length 9-18mm (35mm equivalent focal length: 18-36mm)
Maximum / Minimum aperture F4.0 (9mm) - F5.6 (18mm) / F22
Lens construction 13 elements in 9 groups (1 aspherical ED lens, 1 aspherical lens, 1 DSA (Dual Super Aspherical) lens)
Focusing system Floating
Angle of view 100°- 62°
Closest focusing distance 0.25m
Maximum image magnification 0.12x (35mm equivalent maximum image magnification: 0.24x)
Minimum field size 111 x 148mm
Number of diaphragm blades 7 (circular aperture diaphragm)
Filter size Ø72mm
Dimension (max. diameter x total length) Ø79.5 x 73mm
Weight 275g

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: 9mm)

  0.25 0.3 0.4 0.5 0.7 1.0 2.0 3.0 5.0
4 0.233 to 0.271 0.272 to 0.340 0.340 to 0.499 0.401 to 0.697 0.502 to 1.286 0.617 to 3.569 0.842 to ∞ 0.957 to ∞ 1.075 to ∞ 1.317 to ∞
5.6 0.228 to 0.281 0.263 to 0.358 0.324 to 0.553 0.376 to 0.827 0.458 to 1.941 0.548 to ∞ 0.706 to ∞ 0.781 to ∞ 0.854 to ∞ 0.991 to ∞
8 0.221 to 0.297 0.252 to 0.393 0.303 to 0.673 0.345 to 1.197 0.407 to 12.815 0.471 to ∞ 0.573 to ∞ 0.618 to ∞ 0.658 to ∞ 0.730 to ∞
11 0.212 to 0.327 0.238 to 0.463 0.279 to 1.018 0.311 to 4.001 0.356 to ∞ 0.398 to ∞ 0.461 to ∞ 0.487 to ∞ 0.509 to ∞ 0.546 to ∞
16 0.201 to 0.388 0.222 to 0.650 0.254 to 6.535 0.276 to ∞ 0.307 to ∞ 0.333 to ∞ 0.370 to ∞ 0.384 to ∞ 0.396 to ∞ 0.415 to ∞
22 0.190 to 0.563 0.205 to 2.079 0.228 to ∞ 0.243 to ∞ 0.263 to ∞ 0.279 to ∞ 0.300 to ∞ 0.307 to ∞ 0.313 to ∞ 0.323 to ∞

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

Depth of field table (middle focal length: 12mm)

  0.25 0.3 0.4 0.5 0.7 1.0 2.0 3.0 5.0
4.5 0.239 to 0.263 0.281 to 0.323 0.360 to 0.455 0.432 to 0.602 0.560 to 0.962 0.719 to 1.746 1.073 to 39.958 1.282 to ∞ 1.519 to ∞ 2.101 to ∞
5.6 0.237 to 0.265 0.278 to 0.328 0.354 to 0.466 0.423 to 0.625 0.542 to 1.031 0.687 to 2.021 0.996 to ∞ 1.171 to ∞ 1.362 to ∞ 1.802 to ∞
8 0.233 to 0.272 0.271 to 0.341 0.339 to 0.502 0.399 to 0.703 0.499 to 1.306 0.613 to 3.717 0.835 to ∞ 0.949 to ∞ 1.066 to ∞ 1.304 to ∞
11 0.227 to 0.284 0.261 to 0.364 0.321 to 0.568 0.371 to 0.863 0.451 to 2.166 0.536 to ∞ 0.687 to ∞ 0.757 to ∞ 0.825 to ∞ 0.952 to ∞
16 0.219 to 0.303 0.249 to 0.404 0.299 to 0.709 0.339 to 1.323 0.399 to ∞ 0.459 to ∞ 0.556 to ∞ 0.597 to ∞ 0.635 to ∞ 0.701 to ∞
22 0.210 to 0.337 0.235 to 0.487 0.274 to 1.157 0.305 to 8.044 0.347 to ∞ 0.387 to ∞ 0.447 to ∞ 0.470 to ∞ 0.491 to ∞ 0.525 to ∞

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

Depth of field table (tele-end focal length: 18mm)

  0.25 0.3 0.4 0.5 0.7 1.0 2.0 3.0 5.0
5.6 0.243 to 0.257 0.288 to 0.313 0.375 to 0.431 0.456 to 0.556 0.607 to 0.836 0.805 to 1.344 1.302 to 4.647 1.638 to 25.953 2.063 to ∞ 3.379 to ∞
8 0.241 to 0.260 0.284 to 0.319 0.366 to 0.444 0.442 to 0.583 0.577 to 0.908 0.750 to 1.566 1.149 to 10.340 1.395 to ∞ 1.684 to ∞ 2.442 to ∞
11 0.237 to 0.265 0.278 to 0.328 0.354 to 0.467 0.422 to 0.628 0.540 to 1.043 0.683 to 2.080 0.986 to ∞ 1.155 to ∞ 1.339 to ∞ 1.759 to ∞
16 0.233 to 0.272 0.271 to 0.342 0.339 to 0.504 0.398 to 0.710 0.497 to 1.339 0.609 to 4.069 0.825 to ∞ 0.935 to ∞ 1.046 to ∞ 1.273 to ∞
22 0.227 to 0.284 0.261 to 0.365 0.320 to 0.573 0.370 to 0.879 0.448 to 2.318 0.532 to ∞ 0.678 to ∞ 0.746 to ∞ 0.811 to ∞ 0.932 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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