Ultra-Wide Zoom Review and Comparison
Pentax 12-24mm, Sigma 12-24mm, and Tamron 10-24mm
By PF Staff in Review Announcements on Mar 23, 2012
We are pleased to release a comprehensive review and comparison of three popular wide-angle zoom lenses in Pentax K-mount: The smc Pentax-DA 12-24mm F4 ED AL[IF], the Sigma 12-24mm F4.5-5.6 DG, and the Tamron SP AF 10-24mm F3.5-4.5 Di II.
Wide angle zooms are very popular for landscape photography due to the flexibility of being able to change the focal length without swapping lenses.
Of the bunch reviewed here, the Tamron is the widest, starting at 10mm focal length which gives an angle of view of a whopping 108 degrees diagonally, about 9 degrees wider than the two other lenses. The Sigma is the most expensive, which is explained by the Sigma's being a full-frame lens (it covers the 24x36mm format).