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8-16mm HSM focal range is weird, calibrate?

Started 10 months ago | Discussions thread
Scottelly
Scottelly Forum Pro • Posts: 18,028
Re: 8-16mm HSM focal range is weird, calibrate?

Hi Amy, I found it best to set focus manually at the infinity mark when using my 8-16mm lens on that camera. Sometimes, if I was shooting something very close, I would set focus closer, but only if the subject was within arm's reach, or something like that. There is a lot of field curvature with that lens, so if you want to get the edges of a horizon in focus, you may need to focus just past infinity, but be careful to not go too far, because everything will go out of focus if you do.

I found calibrating a lens, especially a zoom lens, to be a lesson in frustration. I suggest you just manual focus with Sigma's ultra-wide-angle lenses, no matter what camera you use. I had a similar experience with my 12-24mm EX HSM lens on my Canon 5 D.

BTW, it took me quite a while to get comfortable with focusing my 8-16mm on that camera.

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Scott Barton Kennelly
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