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p.2 #4 · EF 24mm f/1.4L II master thread | |
Shuko wrote:
Well, Im no expert on MTF reading, but that doesnt show stopped down lines at all?
"keep in mind that the black lines show the lens wide open while the blue lines show the lens stopped down to f/8"
Red = "the higher up the chart the 10 LP/mm line is (the thick lines), the higher the contrast reproduction capability of the lens will be."
Blue = "the higher up the chart the 30 LP/mm line is (the thin lines), the higher the resolving power and thus subjective sharpness of the lens will be."
Old
New
So, comparing the red/blue to the black lines it seems new one is actually better, especially in corners?
Someone smarter correct if thats wrong.
Looking at the mtf's I would say that this:
Centre frame - both lenses essentially equal
Zone B - the old lens is slightly better for contrast, new lens for resolution
Corner - the new lens will be slightly better
This is all based upon computed mtf's; wide open, and will probably be affected by manufacturing tolerences. I may switch to the new one for the weather sealing and general reduction in CA's
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