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Sigma DN 19mm f/2.8
Sigma DN 30mm f/2.8

Examples: Sharpness at Distance

Olympus OM-D E-M5 with Sigma 30mm f/2.8.

Most of these examples were shot to assess fine detail rendition over the frame.

These examples shot using camera auto exposure, which degraded image quality (noise) by under-exposing with the “correct” exposure. The Olympus E-M5 often needs ETTR (see DAP) of +0.7 to +2.0 stop exposure compensation to reduce the noise levels seen here. These images could probably have taken +1.5 stops.

RAW conversion

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Since 2009, Diglloyd Guide to Mirrorless covers mirrorless cameras and lenses. Includes interchangeable lens camera systems (Sony, Fujifilm, Olympus, etc) as well as fixed-lens cameras (Sony, Sigma, Ricoh, etc).

In addition to the manufacturer-brand lenses, lens coverage includes 3rd-party lens lines like Zeiss Touit, Zeiss Loxia and Zeiss Batis.

It includes hundreds of pages of exclusive coverage and high resolution, Retina-grade examples for the new mirrorless camera systems from Sony, Fujifilm, Olympus, Sigma, Ricoh and more. Also included are operational concerns, like shutter vibration or other camera behaviors. This publication will play a decisive role in your selection and use of mirrorless cameras and lenses.

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ƒ/4.5 @ 1/1500 sec handheld, ISO 200
Olympus OM-D E-M5 + Sigma DN 30mm f/2.8
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