I agree. The lens can't amplify anything. The only thing it can do is
try to maintain the full contrast of the original scene by accurately
directing every light ray to its proper place and avoid adding a color
cast of its own via its glass or coatings.
Saturation is increased by narrowing the spectral range of colors. Say,
by making green a truer green by filtering out or shifting frequencies
that are nearby. PhotoShop can do that but I don't think a lens can.
If one lens seems to produce something brighter and spicier than another
it's probably because that lens is more accurately designed and
manufactured and is able to maintain higher contrast than its competitor.
Chuck Norcutt
Winsor Crosby wrote:
> It seems to me that much of what a lens does is subtractive, whether
> glass transmission, filter or whatever, which is why it is difficult
> to understand statements that seem to indicate that a particular
> amplifies color or contrast over the scene that is being photographed.
> Of course there are differences between lenses, but it is hard for me
> to see high contrast as a fault rather than a bit closer to a perfect
> lens design. Certainly though, your experience has provided me
> something to think about.
>
>
>
> Winsor
> Long Beach, California, USA
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