{"product_id":"sigma-af-24-70mm-f2-8-dg-os-hsm-a-nikon","title":"SIGMA AF 24-70mm F2.8 DG OS HSM | A - NIKON","description":"\u003cp\u003eSigma is more active than anyone else in this space, with not only an Art series 24-70mm f\/2.8, but also a faster and shorter-range 24-35mm f\/2 , so it’s interesting to compare the performance of these with others lenses sharing a Nikon mount, including the well-liked Nikon model and its equally-respected predecessor.\u003c\/p\u003e\n\u003cp\u003eThe Sigma Art series 24-70mm f\/2.8 lens’s overall score of 31 on the Nikon D810 puts it 5 points behind the maker’s 24-35mm f\/2, which is a noticeable margin. We expected the new lens to be closer.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eIn this section, we’re going to compare the Art series lens with the original Sigma 24-70mm IF EX DG HSM lens and the stabilized Nikon AF-S Nikkor 24-70mm f\/2.8E ED VR.\u003c\/p\u003e\n\u003cp\u003eWe tested all three lenses on the full-frame 36MP Nikon D810 to make the results directly comparable.\u003c\/p\u003e\n\u003cp\u003e (In our our test of the Canon-mount version, you’ll get an idea of how the Sigma Art lens fares against the Tamron and Canon models.\u003c\/p\u003e\n\u003cp\u003e In case you’re wondering, the Sigma isn’t a match for the Canon, which retains its position as the gold standard for this category.)\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFrom our tests, it is clear Sigma prioritized sharpness across the frame (that is, the image field)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e at each focal length and aperture over outright sharpness, something that we’re seeing more frequently with modern designs.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e Still, we were expecting a greater increase in sharpness over the previous model.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe acutance profile below shows the sharpness profile of the three lenses at their longest focal length and at f\/2.8. Closing down the apertures increases sharpness to f\/5.6-8, whereas after at f\/11, all three begin to exhibit some diffraction and score below 70% acutance.\u003c\/span\u003e\u003c\/p\u003e","brand":"Sigma","offers":[{"title":"Default Title","offer_id":41702405177419,"sku":"576955","price":109990.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0622\/6011\/7579\/files\/k1_b4cb0bc8-7014-429f-afb7-01a53f2d233b.png?v=1758110299","url":"https:\/\/globeintrading.com\/products\/sigma-af-24-70mm-f2-8-dg-os-hsm-a-nikon","provider":"Globein Trading Camera Store","version":"1.0","type":"link"}