Comparable in image quality with higher-end models. P anasonic Lumix DMC-G3: a medium-level 16 megapixel Micro Four-Thirds mirrorless camera (with a nice eye-level viewer).Samsung Galaxy S4: a well-regarded 13 megapixel camera phone.Results for four very different cameras are presented on this page. Slanted-edge MTF measurements are stable, reliable, and more representative of perceived image sharpness under a wide range of conditions (in addition to their many well-known advantages: higher speed and more efficient use of space, which enables detailed sharpness maps).The Siemens Star’s high contrast (specified at >50:1) makes it quite sensitive to saturation and to “shoulders” (regions of reduced contrast) in camera tonal response. Siemens Star MTF measurements are nearly as sensitive to sharpening as low-contrast (4:1) slanted-edge measurements.This page contains additional Slanted-edge, Siemens Star, and Log F-Contrast results for four cameras, in support of claims in Slanted-edge versus Siemens Star that CC-BY-SA-3.0 Creative Commons Attribution-Share Alike 3.A comparison of sensitivity to signal processing: This licensing tag was added to this file as part of the GFDL licensing update. share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made.to share – to copy, distribute and transmit the work.This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.

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Siemens star dimensions