APS-C IMAGE QUALITY VS fULL fRAME AT TESTING

Started Feb 24, 2013 | Discussions thread
MOD schmegg Veteran Member • Posts: 5,768
Re: APS-C IMAGE QUALITY VS fULL fRAME AT TESTING

Donald Duck wrote:

schmegg wrote:


Full frame resolution comparison using flawed methodology.

Crop resolution comparison using flawed methodology.

So, from this we can conclude that crop does indeed out-resolve full frame with equivalent settings using your prescribed method of comparison.

What crop - they are both FF!

Yes, sorry, my bad. Grabbed the wrong image. Though it's of little consequence because the crop still outresolves the full frame in this case anyway.

Try again. Let me help you - choose Coca Cola glass zoom on the 1Ds3 and the 200/2 on the 60D - and the 60D will win!

Precisely.

But, chose the 50/1.4 on the 1Ds3 (about $300 right now) and find me ANY lens in the world that comes even close on the 60D to it, equivalent settings.

Wrong. Even the 60D will outresolve the 1D3 in certain situations. Which is precisely why the assertions you are making are flawed.

Wait, the 24-105 at f/4.5 on the 1Ds3 beats the EF-S 60 on the 60D at f/2.8!

No. Only sometimes. Try a reach limited shot with them.

Are you catching on yet?

Do you realize that with equivalents setting, same framing, the distance would be the same? How long are you going to milk the "distance cow"?

I'm not doing any such thing.

What I am doing is prescribing a method to test the resolving power of different cameras.

The method is repeatable and provides consistent results regardless of the lens used. It is what would be considered a scientific approach to measuring a specific image quality parameter.

You, on the other hand, are prescribing a method that provides entirely inconsistent outcomes. Using this method, we find that one camera may or may not outresolve the other, depending on the situation! LOL!

How is the snake oil business these days?

When comparing systems, you need to do it in a honest way, without being a ... (you know what I mean). Choose lenses of similar class, price, something that people actually buy and shoot with. Or just choose a decent, even a cheap prime on FF and try to find a match for it on crop.

Fine. I choose the 100/2.8 L macro and I choose to shot at maximum macro magnification - because I wish to resolve as much subject detail as possible!

What will I find?

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