*** 5Dc vs 60D resolution test ***

Started Mar 17, 2013 | Discussions thread
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qianp2k OP
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Re: please don't twist my photos
In reply to schmegg, Apr 1, 2013

schmegg wrote:

qianp2k wrote:

I said you twisted it because you did completely wrong by zooming in LR that is only for viewing purpose but not for photo enlargement. The right way is thru Photoshop Bicubic enlargement.  If you did that correct way you will see the result I showed that is truly untwisted.  I gave the steps that everyone can duplicate.

It's not 'dark magic', it's simply zooming in on the raw data to see what has been recorded.

That is totally wrong way.  As I suggested, try bicubic enlargement in PS.  Again here is 100% cropped between two.  Look how different from yours.  This is the right way to show the real difference.

I'm sorry Peter, but this is just plain wrong.

hehe.  bicubic enlargement in PS is well known the right way in photography world.  You can try bicubic sharper by downsampling 60D files to match to 5D size, lol.  I actually gave 60D a favor by upsampling 5D files.  As someone suggested the best way should be leave at their original size.  However I upsampling 5D files for easier comparison to prevent a delusion that bigger size resolves more details.


If you use any type of enlargement algorithm such as "bicubic sharper" then you are interpolating, or 'inventing', detail that has simply not been recorded by the sensor! LOL!

Check the above link, Bicubic Smoother is for upsampling while Bicubic Sharper is for downsampling.  Anyway photoshop Bicubic enlargement is the best way to enlarge photo while still keep as much details as possible.

What you are essentially saying here is that the difference will be in favour of the 5D if you use mathematics to estimate and insert information that does not exist in the raw file.

I don't get how upsampling will increase fine details?  I actually sacrifice 5D files quality by upsampling 5D files to match to 60D size.  I actually should downsampling 60D files to 5D size and then 5D's advantage is bigger

Sadly, mathematically inventing image detail does not equate to "more resolving abilities" - it is, in fact, a workaround one uses when they need more detail than the camera was capable of recording in the first place!

Please don't find any excuses.  I know no matter how I processed (that all from default w/o any sharpening and any processing) directly out of ACR in steps that everyone can duplicate), you will not be satisfied and simply cannot accept 5D wins in IQ and in resolving fine details as tested by DXOMark.  The best way is that we processe respectively and then compare.

The bottom line is that 5D can generate those natural sharpness and fine details your 7D cannot match. Otherwise bring up please.

I am still waiting to see your 7D 100% face snapshot after two years!    Let's real world photos to speak themselves.

100% cropped

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