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Sigma 150 - 600 Poor Airshow Results
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<blockquote data-quote="nickt" data-source="post: 625288" data-attributes="member: 4923"><p>I agree, looks like motion blur. I wonder too if the OS contributed to the problem. You said you had OS1 on. OS1 corrects for up and down and side to side. OS2 is for panning. On my Sigma, OS causes very obvious problems on a tripod. I know instantly when I forget to turn it off because the viewfinder image starts moving around when I activate focus. OS seems to do the job handheld, but I haven't done much panning to say for sure how it behaves.</p><p>Here's an article by a Sigma guy:</p><p><a href="https://blog.sigmaphoto.com/2011/understanding-optical-stabilization-by-jack-howard/" target="_blank">https://blog.sigmaphoto.com/2011/understanding-optical-stabilization-by-jack-howard/</a></p><p></p><p>Half way down the page he talks about os1 vs os2.</p></blockquote><p></p>
[QUOTE="nickt, post: 625288, member: 4923"] I agree, looks like motion blur. I wonder too if the OS contributed to the problem. You said you had OS1 on. OS1 corrects for up and down and side to side. OS2 is for panning. On my Sigma, OS causes very obvious problems on a tripod. I know instantly when I forget to turn it off because the viewfinder image starts moving around when I activate focus. OS seems to do the job handheld, but I haven't done much panning to say for sure how it behaves. Here's an article by a Sigma guy: [URL]https://blog.sigmaphoto.com/2011/understanding-optical-stabilization-by-jack-howard/[/URL] Half way down the page he talks about os1 vs os2. [/QUOTE]
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Sigma 150 - 600 Poor Airshow Results
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