nggak fix aperture om .. mending tamron 17-50 f/2.8 ..
ato Canon EF-S 17-55 f/2.8 IS USM ..
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tambahan info : tamron 17-50 berada di urutan ke empat untuk general purpose lens yang direkomendasikan the digital photo, bahkan berada di atas 17-40 f/4 L ..
andaikan tamron buat lensa 17-50 f/2.8 dengan tambahan fitur semacam USM, pasti top banget abis2 an
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My Canon general purpose lens recommendations ...
Canon EF-S 17-55mm f/2.8 IS USM Lens (optically excellent, EF-S mount only)
Canon EF 24-105mm f/4 L IS USM Lens (optically excellent)
Canon EF 24-70mm f/2.8 L USM Lens (optically excellent)
Tamron 17-50mm f/2.8 XR Di II Lens (EF-S mount only)
Canon EF 17-40mm f/4.0 L USM Lens
Canon EF-S 17-85mm f/4-5.6 IS USM Lens (EF-S mount only)
Canon EF 28-135mm f/3.5-5.6 IS USM Lens
Canon EF-S 18-55mm f/3.5-5.6 IS Lens (low budget, EF-S mount only)