Double Disappointment with Sigma 50mm and 85mm f/1.4 Lens

Started Oct 23, 2010 | Discussions thread
jenbenn
Regular MemberPosts: 207
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Re: Double Disappointment with Sigma 50mm and 85mm f/1.4 Lens
In reply to Uforias, Oct 25, 2010

Just like my old Sigma 70-200 EX. Different focus offsets at different distances, meaning in-camera-calibration was impossible. Absolutly useless. In addition, the EX-paint started to peel off after a year and HSM moter started making squeaking noises. What a joke of a lens.

BTW a slight af offset in tungsten light isnormal, as the af sensor is calibrated to daylight and the differnt wavelength of the light influence af precision. This is way large aperture canon lenses may need to be re-calibrted if used in such light conditions.

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