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Canon RF 24-240mm f4-6.3 IS USM coming soon
#65
(09-10-2019, 11:35 AM)Klaus Wrote: Your sharpening argument is lame.

To start with - we use sharpening that is slightly lower than the default sharpening in your camera or RAW converter.
Thus we do the very same thing that all users are doing.
If you consider the amount of sharpening a flawed approach, then the default sharpening is even worse - please call the manufacturer of your camera and tell them to fix this.

Also - the amount of sharpening is pretty much the same across all systems - which negates your argument that only FF is affected.

To start with, it is not lame. 

You use a totally undocumented/undisclosed sharpening amount, and that it impacts results is evident in high resolution tests (Sony and Canon FF tests).

What you HAVE disclosed is that you use a very blunt way of sharpening, a simple USM. This will elevate sharpness from sharp parts a lot, and progressively less the less sharp things are, making differences more pronounced than they are. This is not a problem if things were equal across all tests, but they are not. Higher resolution sensors get hit twice... For having a bit less sharp values not sharpened at all and the center parts sharpened a lot (1st border hit), and with lower resolution tests like those from MTF having equally less sharp parts being boosted due to the much lower sampling rate, making for certain individuals claiming FF lenses having "dismal borders".

You in effect are blaming FF borders for the lower sample rate of other cameras.

It would be interesting to see the difference of sharpened and unsharpened MTF results with the 42mp Sony and/or 50mo Canon.
  


Messages In This Thread
RE: Canon RF 24-240mm f4-6.3 IS USM coming soon - by miro - 07-05-2019, 07:35 AM
RE: Canon RF 24-240mm f4-6.3 IS USM coming soon - by davidmanze - 09-09-2019, 07:25 AM
RE: Canon RF 24-240mm f4-6.3 IS USM coming soon - by davidmanze - 09-09-2019, 10:26 AM
RE: Canon RF 24-240mm f4-6.3 IS USM coming soon - by Brightcolours - 09-10-2019, 12:08 PM

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