Return of Interesting article on DxO about 5D III and D800...

Started Apr 10, 2013 | Discussions thread
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Just another Canon shooter
Just another Canon shooter Senior Member • Posts: 4,691
Re: True that

Mako2011 wrote:

Just another Canon shooter wrote:

MAC wrote:

Mako2011 wrote:

Just another Canon shooter wrote:

BTW, the real test should be at equivalent FL and equivalent f-stops with common lenses.

When comparing resolution across formats you have to keep the subject distance constant. DxO apparently doesn't do that. Might be a source of some of their inconsistencies

true !

Wrong, actually. They have one chart. When they test equivalent FL's they shoot from the same distance.

Actually not the case at all when they test lens. They do shoot from different distances depending on format. Strange of them. Might be why the no longer publish the charts as well.  Hard to explain their methodology of late.

The distance depends on the FOV, not on the format. Equivalent FL = same FOV = same distance to the same target.

Note that I am talking about equivalent lenses, not about the same lens.

DXO

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Canon EOS 5D Mark II Canon EF 15mm f/2.8 Fisheye Canon EF 35mm f/1.4L USM Canon EF 50mm f/1.2L USM Canon EF 135mm f/2.0L USM +4 more
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