Another Olympus E-M1 and SONY a7 walkabout test, high ISO

Started Jan 29, 2014 | Discussions thread
Lab D
Senior MemberPosts: 6,250Gear list
Blue Skies misleading again.
In reply to blue_skies, Jan 29, 2014

blue_skies wrote:

Lab D wrote:

Thanks for the samples, they are very helpful.

I would remind everyone that Olympus has wider aperture lenses and IBIS too. This means if you use the Olympus 12-40mm F/2.8 as a walkabout lens, not only will you have a greater range and more uses (also a great close-up lens), but you will get 1 extra stop of light over the new Sony 24-70mm F/4 lens.

How so: in equivalence terms, the Oly 12-40/f2.8 becomes 24-80/f5.6 versus the Sony 24-70/f4.0?

You can expose on the Oly one stop faster (at f/2.8), but the sensor difference nullify this.

I saw in another thread where you admitted the difference between the E-M1 and A7 is NOT 2 stops, and when I went to DxO's site to verify this I saw the difference in noise was usualy about one to one and a half stops and the difference in dynamic range was almost always only 1/2 stop and maybe less.  Are you now saying DxO is wrong?   I'll take the camera with more dynamic range that can has a focus system that works over one that is very unreliable, had slightly less noise, but also less dynamcic range.  I am just glad I can use the E-M1 to take pictures of kids in action with a lens over 70mm. 

 Lab D's gear list:Lab D's gear list
Panasonic Lumix DMC-FZ1000 Nikon D600 Panasonic Lumix DMC-GH4
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