The edges are excellent from f/2.8 to f/8, very good at f/11 and good at f/16. At 20mm, central sharpness is excellent at f/2.8, outstanding at f/4, excellent from f/5.6 to f/11 and very good at f/16.
(From Pentax lens literature) The Pentax SMC P-FA 20mm f/2.8 lens offers outstanding versatility and is perfectly suited for architectural and outdoor photography. Weighing a mere 9 ounces ...
The Tokina 11-20mm f/2.8 AT-X PRO DX is a versatile wide-angle lens designed for APS-C sensors, available for Canon EF and Nikon F mount DSLRs. The Tokina 11-20mm features a constant maximum ...
Sharpness is highly impressive. The centre is excellent from f/1.8 to f/2, outstanding from f/2.8 to f/8 and excellent at f/11 and f/16. The edges are excellent from f/1.8 to f/4, outstanding at f ...
Our guide to astrophotography for beginners covers everything from equipment to shooting ... so look with options that have the smallest f-stop number possible – we'd recommend f/2.8 or faster. If you ...
We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Ellen Lee and Wirecutter Staff We’ve most recently added Craftzilla ...
Images, and the devices that capture them, are my focus. I've covered cameras at PCMag for the past 13 years, which has given me a front row seat for the DSLR to mirrorless transition, the smartphone ...
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