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January 23rd, 2014, 02:44 PM
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#1 |
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Regular Crew
Join Date: Aug 2012
Location: Trumbull, CT
Posts: 132
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Focusing distortion on my Sigma 24-70
I've been noticing lately that when pulling focus on my Sigma 24-70 lens with my 60D, that elements of the image distort a little bit as I focus. It's hard to explain, but I guess it seems to happen around the edges sort of like barrel distortion. Should I be expecting this from this lens? Is it simply a matter of getting a more expensive lens more suited for video, or is it just the way that type of lens is designed?
I'll see if I can post an example later. |
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January 24th, 2014, 09:09 AM
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#2 |
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Regular Crew
Join Date: Dec 2012
Location: Indianapolis Indiana U.S.A.
Posts: 63
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Re: Focusing distortion on my Sigma 24-70
I have never use that lens, but if it's still under warranty I would talk to Sigma and send it in to them. I do see where people have said it does create a bit of vignette.
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January 26th, 2014, 07:07 AM
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#3 |
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Major Player
Join Date: Jun 2010
Location: UK
Posts: 232
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Re: Focusing distortion on my Sigma 24-70
Yeah, the lenses does breath, or at least mine does, but I don't think it's been noticeable in any of my work.
That's going to be the issue with using photography lenses for video. |
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