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Sigma 50-150 f/2.8 discontinued?
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<blockquote data-quote="Felisek" data-source="post: 364783" data-attributes="member: 23887"><p>I got my lens today. Didn't have a chance to take any pictures outside, as it was late, dark and miserable. But I did a few tests inside. Out of the box it showed some back-focusing. It is not easy to fully correct, as it depends on the distance. It shows more of the front focus close up and a bit of the back focus from a distance. I managed to get a compromise. This is pixel-picking and, hopefully, it should work fine in normal photography. But the depth of field at the long end at f/2.8 is rather narrow!</p><p></p><p>After this tweaking a few test pictures indoors show that it is really, really sharp!</p><p></p><p>I noticed that the optical stabiliser is a bit noisy and kicks in with a little jolt. When I half-press the shutter button and the OS activates, there is an audible "click" and the image in the viewfinder jolts a little. It doesn't sound or feel worrying, thought the effect is more pronounced then in my other lenses. I managed to capture it with my phone in <a href="https://www.youtube.com/watch?v=bzzSxjsZsEo&feature=youtu.be" target="_blank">this video</a>.</p><p></p><p>@HoroscopeFish, you have this lens, do you see similar behaviour?</p></blockquote><p></p>
[QUOTE="Felisek, post: 364783, member: 23887"] I got my lens today. Didn't have a chance to take any pictures outside, as it was late, dark and miserable. But I did a few tests inside. Out of the box it showed some back-focusing. It is not easy to fully correct, as it depends on the distance. It shows more of the front focus close up and a bit of the back focus from a distance. I managed to get a compromise. This is pixel-picking and, hopefully, it should work fine in normal photography. But the depth of field at the long end at f/2.8 is rather narrow! After this tweaking a few test pictures indoors show that it is really, really sharp! I noticed that the optical stabiliser is a bit noisy and kicks in with a little jolt. When I half-press the shutter button and the OS activates, there is an audible "click" and the image in the viewfinder jolts a little. It doesn't sound or feel worrying, thought the effect is more pronounced then in my other lenses. I managed to capture it with my phone in [URL="https://www.youtube.com/watch?v=bzzSxjsZsEo&feature=youtu.be"]this video[/URL]. @HoroscopeFish, you have this lens, do you see similar behaviour? [/QUOTE]
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Sigma 50-150 f/2.8 discontinued?
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