SONY 90MM MACRO G MANUAL
SONY 90MM MACRO G SERIES

Following are three of the more extreme example results.The build quality is exceptional.

SONY 90MM MACRO G SERIES

So to judge the proclivity of Sony’s FE 90mm f2.8 Macro G OSS for these artifacts I went through a series of well calculated shots against a strong light source to provoke glare and ghosting. The appearance of flare and ghosting depends on factors like the aperture and the angle of the light hitting the lens. The test again showed the Sony to have practically no field-curvature even at 1:1 magnification: all crops in a row are from the same shot.Ĭatching a strong light-source shining directly into the lens is always a risky business: it could produce strange colorful ghost-images or reduce contrast considerably through flare and glare. The Sigma 105mm f2.8 DG DN Macro Art is clearly better at 1:1 magnification. Stopping down to f4.0 improves acuity in the APS-C image circle visibly but still leaves the FF-corner wanting.

You can access the large originals but please respect our copyright and only use those images for personal use.Ībove: Sony FE 90mm f2.8 Macro G OSS at f5.6 100% cropsĪt maximum magnification the Sony is a bit soft at f2.8 although it still out-resolves the target. As usual I have selected the diagonal that provided the better corner results as the Sony was quite a bit decentered. The Sigma was shot another day but under comparable atmospheric conditions – which in both cases were not the clearest. Following the main image are 100% crops from the center, APS-C-corner, and FF-corner from the Sony FE 90mm f2.8 Macro G OSS compared to the Sigma 105mm f2.8 DG DN Macro Art at f2.8. The following image shows the complete scene wide open to give you an impression of the angle of view.

SONY 90MM MACRO G MANUAL

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. Above: Sony FE 90mm f2.8 Macro G OSS (left), Sigma 105mm f2.8 DG DN Macro Art (right)

Sony 90mm macro g