Forum: Pentax SLR Lens Discussion
10-19-2016, 06:51 AM
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I've got the Sigma 12-24 DG which is astoundingly wide and remarkably rectilinear for a UWA. The 12mm end is sharper than the 24 mm end. The lens may be quite slow (f/4.5-5.6) but I've never found that to be a problem for landscapes (where I use f/8 or f/9.5) or architecture (with SR enabled, I've gone down to 1/4 to 1/2 second handheld at 12 mm inside cathedrals).
It's a big heavy lens but I never go hiking or on vacation without it.
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