08-26-2010, 02:10 PM
(This post was last modified: 08-26-2010, 02:12 PM by Brightcolours.)
[quote name='thw' timestamp='1282831335' post='2220']
Klauss' optical quality scores are based entirely on various aspects of lens designs.
In real use, distortion, chromatic aberration and vignetting are most EASILY corrected in post-processing, so the only criteria worth considering are resolution, flare and bokeh. Since the latter two aspects are not presented, the only aspect left is resolution. If you miss out the details, you can never recover them.
Now, look at 18, 24-28 mm and 55 mm. Examine performance at border/extreme relative to the center. Take off your fanboyz glasses and stare at the optical results.
[/quote]
There are two ways of "correcting" CA. One will improve resolution, one won't.
Not all CA can actually be corrected the "right" way, that very much depends on the wavelength(s) that are offending.
Correcting distortion will lose resolution. You can not just look at resolution and think "you can not recover details", and then also say distortion correcting is easy and not problematic, as it will lose you more resolution than you think.
On another note:
Is that pincushion distortion at 35mm from the Sony a negative record? I do not remember a similar bad pincushion result right now.
Klauss' optical quality scores are based entirely on various aspects of lens designs.
In real use, distortion, chromatic aberration and vignetting are most EASILY corrected in post-processing, so the only criteria worth considering are resolution, flare and bokeh. Since the latter two aspects are not presented, the only aspect left is resolution. If you miss out the details, you can never recover them.
Now, look at 18, 24-28 mm and 55 mm. Examine performance at border/extreme relative to the center. Take off your fanboyz glasses and stare at the optical results.
[/quote]
There are two ways of "correcting" CA. One will improve resolution, one won't.
Not all CA can actually be corrected the "right" way, that very much depends on the wavelength(s) that are offending.
Correcting distortion will lose resolution. You can not just look at resolution and think "you can not recover details", and then also say distortion correcting is easy and not problematic, as it will lose you more resolution than you think.
On another note:
Is that pincushion distortion at 35mm from the Sony a negative record? I do not remember a similar bad pincushion result right now.