The list is useless because it only containing the photodo's
"weighted" number not because it ignored the "technique and
photographer", no lens test will include these items.
Photodo's result was discussed here for a few times, MTF curve is
useful if you know how to interpret them. But photodo's test has lots
of deficiency, just try to name a few here:
1. Photodo only test the lens at infinity.
2. Seems they only focus once for checking the whole frame, high field
curvature lens will have very low edges performance in the test but on
the field it could be fine in most cases as most our objects are 3D
not flat.
3. IMO, the poor weighting method only show how the lens perform with
small prints.
4. MTF doesn't cover the lens color accuracy and saturation
characteristic.
5. Only one sample is tested.
To judge a lens performance is difficult, I'm sure there are lots of
other points I have left. MTF is not everything not to mention
Photodo.
C.H.Ling
Alan wrote:
>
> ax 5)
>
> Of course this list is useless. Ignoring the fact that it only covers infinity
> (how many of your macro shots are at infinity???), it also ignores a large
> number of other factors that impact image quality (ignoring technique and
> photographer).
>
> Alan
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