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Does the Sigma 18-35mm f1.8 hold focus when zoomed? And could your lens adapter be part of the problem or solution? - Newsshooter
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Amazon.com : Sigma 18-35mm F1.8 Art DC HSM Lens for Canon, Black (210101) : Camera Lenses : Electronics
![Amazon.com : Sigma 18-35mm F1.8 Art DC HSM Lens for Canon, Black (210101) : Camera Lenses : Electronics Amazon.com : Sigma 18-35mm F1.8 Art DC HSM Lens for Canon, Black (210101) : Camera Lenses : Electronics](https://m.media-amazon.com/images/W/IMAGERENDERING_521856-T1/images/I/71SIGm7sPZL._AC_UF894,1000_QL80_.jpg)
Amazon.com : Sigma 18-35mm F1.8 Art DC HSM Lens for Canon, Black (210101) : Camera Lenses : Electronics
![Amazon.com : Sigma 18-35mm F1.8 Art DC HSM Lens for Canon, Black (210101) : Camera Lenses : Electronics Amazon.com : Sigma 18-35mm F1.8 Art DC HSM Lens for Canon, Black (210101) : Camera Lenses : Electronics](https://m.media-amazon.com/images/W/IMAGERENDERING_521856-T1/images/I/81BQCm58y2L.jpg)
Amazon.com : Sigma 18-35mm F1.8 Art DC HSM Lens for Canon, Black (210101) : Camera Lenses : Electronics
![Amazon.com : Sigma 18-35mm F1.8 Art DC HSM Lens for Canon, Black (210101) : Camera Lenses : Electronics Amazon.com : Sigma 18-35mm F1.8 Art DC HSM Lens for Canon, Black (210101) : Camera Lenses : Electronics](https://m.media-amazon.com/images/W/IMAGERENDERING_521856-T1/images/I/815YM693XeL.jpg)
Amazon.com : Sigma 18-35mm F1.8 Art DC HSM Lens for Canon, Black (210101) : Camera Lenses : Electronics
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