OM-D E-M5 vs E-5 (build quality)

Started May 13, 2013 | Discussions thread
Sergey_Green
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And here we go again ..
In reply to philosomatographer, May 27, 2013

philosomatographer wrote:

Sergey_Green wrote:

philosomatographer wrote:

The Tamron is a C-grade optic that needs stopping down to f/5.6 to even approach the resolution of the ZD 14-35 at f/2.0, and simply never reaches the contrast or colour fidelity, that's how. LOL - comparing the two is quite a funny proposition Thanks for the laugh.

It is not what the testers say

Tamron SP 24-70mm F/2.8 Di VC USD on Canon EOS 5D Mark II

It is also known that different makers do intentionally produce different color renderings, and so there is no one better than the other. As far as the tamron goes, I saw them produce brighter and more vibrant tones, than other system (native) variants that I had. Vibrant tones do usually look attractive (juicy) in macro photography, closeups, flowers, etc..  whereas cooler hues are often better fit in portrait and even some landscape renderings. Most what you shoot today gets post-processed in one way or the other anyway (or preset in camera), so at the end it all makes very little difference if at all.

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- sergey

Oh please, the sharpness and contrast is nowhere near in the same league. It distorts massively (2.5%+). Vignetting in the corners is immense (almost 3 stops!).

There are some distortions, but we do not know how it all compares to 14-35, since both lenses are not tested concurrently. What we do know is that some distortions are easily correctable, due to the shape of their curve, whereas the others are not. Good examples are 11-16/2.8 and 12-24/4 Dx Tokinas, their distortions flatten out without a trace. The opposite would be Zuiko 12-60, where numerically small distortion is made of two curves. Try to flatten that one out.

As to vignetting, again, not what the tests show; @ f/4 (which is equivalent of f/2 on 4/3rds) I see 1 stop at short end, brief 2/3 of a stop at a (very) long end, zero in between. As I said, it is all not what you claim.

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- sergey

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