The Tamron 18-400 F3.5-6.3 wants to be the only lens you'll ever need. In my experience, lenses of this nature tend to offer zoom versatility at the cost of sharpness, especially at the telephoto end of the zoom range. But I was pleasantly surprised by how solid this 'ultra-telephoto' performs at all focal lengths in bright, direct light. More specifically, I found it produced adequately sharp images throughout the zoom range with acceptable levels of CA, distortion and vignetting. It's also a f...
The Tamron 18-400 F3.5-6.3 wants to be the only lens you'll ever need. In my experience, lenses of this nature tend to offer zoom versatility at the cost of sharpness, especially at the telephoto end of the zoom range. But I was pleasantly surprised by how solid this 'ultra-telephoto' performs at all focal lengths in bright, direct light. More specifically, I found it produced adequately sharp images throughout the zoom range with acceptable levels of CA, distortion and vignetting. It's also a f...
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