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Lens review

Tamron 35-150 mm f/2.8-4 Di VC OSD

2 January 2020
Maciej Lata││o

6. Distortion

As the tested lens features truly unique parameters, we couldn't even guess what performance in this category might be expected. That's why we decided to check distortion at many focal lengths.

At the smaller sensor of the Canon 50D we didn't notice any serious problems with image deformation. The biggest chances to see it you get at 30 mm where you deal with barrel variant of this aberration of −1.25%. With the lengthening of the focal length distortion changes the sign - already at 50 mm you see slight 'pincushion' of +0.12%. At 85, 105,135, and 150 mm you deal with a more or less stable level of this aberration with the results of, respectively: +0.68%, +0.70%, +0.73%, andá+0.68%.

On full frame distortion is higher but at no place it could be called really bothersome. Once again at 35 mm its level is the most noticeable, reaching −2.64%. At 50 mm focal length you deal with pincushion deformatiions of +0.62%. Further increase of focal length means distortion keeps a more or less the same level of about +1.9% and precise results we got at 85, 105, 135, and 150 mm are as follows: +1.82%, +1.85%, +1.88%, andá+1.86%.

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Canon 50D, 35ámm
Tamron 35-150 mm f/2.8-4 Di VC OSD - Distortion
Canon 50D, 50ámm
Tamron 35-150 mm f/2.8-4 Di VC OSD - Distortion
Canon 50D, 85ámm
Tamron 35-150 mm f/2.8-4 Di VC OSD - Distortion
Canon 50D, 105ámm
Tamron 35-150 mm f/2.8-4 Di VC OSD - Distortion
Canon 50D, 135ámm
Tamron 35-150 mm f/2.8-4 Di VC OSD - Distortion
Canon 50D, 150ámm
Tamron 35-150 mm f/2.8-4 Di VC OSD - Distortion

Canon 5D III, 35ámm
Tamron 35-150 mm f/2.8-4 Di VC OSD - Distortion
Canon 5D III, 50ámm
Tamron 35-150 mm f/2.8-4 Di VC OSD - Distortion
Canon 5D III, 85ámm
Tamron 35-150 mm f/2.8-4 Di VC OSD - Distortion
Canon 5D III, 105ámm
Tamron 35-150 mm f/2.8-4 Di VC OSD - Distortion
Canon 5D III, 135ámm
Tamron 35-150 mm f/2.8-4 Di VC OSD - Distortion
Canon 5D III, 150ámm
Tamron 35-150 mm f/2.8-4 Di VC OSD - Distortion