Re: [OM] Eclipse photo.

[John Petrush]

Many long focal length lenses focus beyond infinity to cope with thermal
expansion/contraction of the mass of the barrel and relative positions of
the lens' elements.

Fine pic btw :)

John P
______________________________________
there is no "never" - just long periods of "not yet".
there is no "always" - just long periods of "so far".


Omer Nezih GEREK <gerek@xxxxxxxxxxxxxxx> wrote:

> Why-oh-why do some lenses deliberately pass infinity?!!!





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