![]() I used manual focus at the largest aperture and did not change focus for other apertures. Noise-reduction is set to 0, sharpening to 50/0.5/36/10, with no extra tone, color, or saturation adjustment. Processing was done in Lightroom 10.1/CRAW 13.1 from RAW to Adobe Color profile with the built-in lens profile compensating vignetting and CA. Therefore I present another series of test-shots of a city around 1 km away. But performance of lenses also depends on the shooting distance. The Siemens-star test-targets are shot at a distance of 45x focal length (i.e. The test also showed the Sony to have practically no field-curvature: all crops in a row are from the same shot. Performance of Sony’s FE 90mm f2.8 Macro G OSS in the APS-C image-circle is pretty good at f2.8 already but the lens needs stopping down to f4.0 to reach the level of acuity which the Sigma already produces at f2.8. Sony FE 90mm f2.8 Macro G OSS compared 100% crop from center, APS-C-corner, FF-cornerĪbove: Sony FE 90mm f2.8 Macro G OSS at f5.6 also available at f8.0, f11 So you will not see light fall-off in the corners. White-balance was adjusted to a neutral white and I did some exposure compensation to make the brightness of all crops match. Processing was done in Lightroom 10.1/CRAW 13.1 from RAW to Adobe Color profile with the built-in lens profile for Vignette Control and CA compensation applied. Let’s see how this theoretical performance translates into real life results in the sharpness test based on Siemens-stars. I’ll show you the real-life performance at 4 mm (center), 13 mm (APS-C-corner), and 20 mm (FF-corner) on a on a 42MP Sony A7R II camera.įrom the charts resolution of the Sony FE 90mm f2.8 Macro G OSS trails the Sigma 105mm f2.8 DG DN Macro Art over most of the sensor. The x-axis displays the distance from the optical axis (=center of the sensor) in mm. Higher values are better (more contrast) and the closer the line-pairs are together the less astigmatism (= resolution depends on the orientation of the test-pattern) the lens has. These MTF charts show the computed lens-performance of lenses wide open without influence of diffraction at 10 line-pairs/mm (red) and 30 lp/mm (green) except for the charts of the Sony where the red lines show the performance at f8.0. The warranty will not cover the liquid damage caused in the environments beyond the IP68 test condition.Above: Sony FE 90mm f2.8 Macro G OSS (left), Sigma 105mm f2.8 DG DN Macro Art (right) ![]() Please carefully refer to user's manual for other safety instructions. Avoid charging the product, operating the physical buttons, or removing the SIM tray when product is exposed to moisture. Ingress protection might deteriorate from daily wear and tear, physical damage and/or disassembly needed in case of repair. We recommend that you do not test it by yourself. Therefore, ingress protection is not assured if the product is subjected to environments beyond the test conditions. Such water resistance features only pertain to specific conditions tested in a laboratory environment, which do not correspond to the normal conditions of use by consumers. Please be noted that the test conditions of water resistance include: submersion in static freshwater up to a depth of 1.5 meters, up to 30 minutes, with a temperature delta between the water and product being 5K or less. *The device has been tested and certified to be resistant to splash, water, and dust in the presence of specific laboratory conditions with the classification IP68 ingress protection based on IEC 60529:1989+A1:1999+A2:2013.
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