Specifications

Focal Length	45mm (35mm Equivalent Focal Length: 90mm)
Lens Construction	14 elements in 10 groups (1 ED lens, 4 HR lenses, 1 aspherical lens) Lens construction diagram MTF chart
Splashproofing	IEC Standard publication 60529 IPX1 (applies when the lens is used with Olympus splashproof Body) / Dustproof construction
Focusing System	High-speed Imager AF (MSC)
Angle of View	27 degrees
Closest Focusing Distance	0.5 m
Maximum Image Magnification	0.1x (35mm Equivalent Max. Image Magnification: 0.2x)
Minimum Field Size	173 x 130 mm
Number of Blades	9 (circular aperture diaphragm)
Maximum Aperture	f/1.2
Minimum Aperture	f/16
Filter Size	Diameter 62 mm
Dimensions	Ø70 x 84.9 mm
Weight	410 g
Box Contents	LH-66B Lens Hood, LC-62F Lens Cap, LR-2 Lens Rear Cap, LSC-0811 Lens Case, instruction manual, warranty card

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 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	0.497 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 20.252	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.

Specifications

Depth of field

Depth of field tables (focal length: 45mm)

Lens construction diagram

MTF chart