Interesting article on DxO about 5D III and D800 resolving power

Started Apr 4, 2013 | Discussions thread
Just another Canon shooter
Just another Canon shooter Veteran Member • Posts: 4,691
Re: Don't get your meaning?

schmegg wrote:

Just another Canon shooter wrote:

schmegg wrote:

Exactly the same lens (100/2.8L macro), exactly the same subject distance - so exactly the same detail presented to the sensor to record.

That means different FOV, and I was referring to the following statement of yours:

If you wish to determine which of two sensors will resolve more detail by comparing using the FOV - then it's (generally) the sensor with the most pixels.

In that case, the sensor size doesn't matter either. And qianp2k had a thread on the lens forum that showed how a 12MP 5D couldn't resolve as much detail as an 18MP 60D when the FOV was the same.

Then the Nokia 808 can resolve as much as the Pentax 645, right?

Look, this is Logic 101. To prove your statement, you need to prove it in every case. Your example "proves" it in one only. To disprove it,  one counter-example is enough, like the 808 vs. 645.

So - here you have a smaller sensor out-resolving a larger one. And that kinda kills your assertion that this "is always incorrect."

"Always" means "for all crop factors". Once you fix the crop factor, one counter-example is enough to prove it is incorrect. One positive example proves nothing.

So here is the thread mentioned above. And there is your "counter-example".

No, this is an example. The counter-example is what I posted, as flawed as it may be.

 Just another Canon shooter's gear list:Just another Canon shooter's gear list
Canon EOS 5D Mark II Canon EF 15mm f/2.8 Fisheye Canon EF 35mm F1.4L USM Canon EF 50mm f/1.2L USM Canon EF 135mm F2L USM +4 more
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