In article ,
Mr. Mark wrote:
I heard there is a coating on the rear element to prevent reflections
off the sensor for digital lenses though I've not seen any example of
these reflections so I assume it's quite a minor issue.

Wouldn't film do the same thing? It's shiny plasticy stuff after all.

The film itself is (that is the plastic backing material), but
the emulsion which faces the lens is typically a matte gray prior to
development. Thus it is not capable of specular (mirror-like)
reflections.

There is also typically a darker coating on the back of the film
to reduce reflections from particularly bright highlights which can
punch through the emulsion and reach the back. This is dissolved in the
processing of the film.

Enjoy,
DoN.

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