A7r 24-70 at 70mm vs EM1 12-40 at 40mm (80mm EFL)

Started Mar 6, 2014 | Discussions thread
CraigArnold Contributing Member • Posts: 697
Last attempt...

Before you send the lens back...

You have for some reason grasped hold of the wrong end of the stick and are clinging to it with a vicelike grip and gritted teeth. So I will make one final attempt to persuade you to let go.

Take the two images at 24mm equivalent, take them to a good print bureau. Get prints made at 30" on the short side:

The Olympus image will give you a 30x40 print and the Sony a 30x45.

Get a selection of people to compare the two prints. What Eric has demonstrated (and you either cannot or refuse to understand) is that the Sony print will be better in the corners and much better over the central 80% of the frame. If you crop off 2.5 inches on the left and right of the Sony print the difference will be even bigger and the Sony look even better by comparison.

Now it may be that you don't care about the final output, and what you really take photos for is to view them at 100% on screen. In which case you will generally be served best by smaller sensors and high quality lenses. In fact the Olympus with pro lenses will almost certainly reign supreme in that scenario. And if that's what your photography is about then more power to you. 

But if you care about the final print then the Sony + 24-70 will outperform the Olympus + 12-40. Everywhere, even in the corners.

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