P3D Re: Lens Questions

[fj834@xxxxxxxxxxxxxxxxxxxxx (Dr. George A. Themelis)]

>how well matched (spec wise) are viewers
>and projection lenses?  They're part of the system as well.

They sure are. I have a feeling that no attempt was made to match those,
except for the Kodaslide II viewer for which I have proof that some
matching was done.  All KII lenses have a value (usually from -6 to +6, 
might go higher, I forget now) written with a pencil in them.  The pairs
are usually close to each other.  Not very close but you will not find
pairs with different signs.  So some attempt was made to match these
lenses.  I don't know about the rest.

>When I replaced the lenses in my Airequipt with achromats, I matched nothing,
>just stuck'em in.  :-)

So did I!  And it worked.

George Themelis


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