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David Kilpatrick | all galleries >> Galleries >> Sony Alpha 100 DSLR Gallery > aRGB 75-300mm focus on mule.JPG
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06-JUN-2006

aRGB 75-300mm focus on mule.JPG

In this image, with the auto exposure stopping down half a step to f8, the focus point is on the right-hand mule, behind the sheep. The 75-300mm is still at 100mm. The A100 does not seem to report very precise focal lengths, and images from this small set were tagged as 100mm, 200mm and 300mm. They were not deliberately set to exact lengths. The in-camera JPEG is again AdobeRGB, so please, if you do not have a fully colour managed browser setup, remember it may display the usual flat yellowish light appearance of an AdobeRGB image seen 'as sRGB'. Download it and view in a colour aware environment. Once again, the slight focus shift towards infinity to the left of the image can be seen, the optimum sharpness shifting to the grass behind the farmer. The bokeh on the foreground (sheep) is excellent. Sharpness in the focused plane, the mule, is really good for a low-cost kit lens. Aberrations seem to be the usual off-axis stuff causing slight directional smearing, but there's no real chromatic problem, just a coma-form white light halo.

Sony DSLR-A100
1/250s f/8.0 at 100.0mm iso100 full exif

other sizes: small medium large original auto
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