Ok, thanks Frank! It's better knowing for sure than just 'believing' I knew
what Olympus meant.
I was worried if I used a converter on a 'non-recommended' lens, I'd set off
some kind of ZoooweeeeKO alarm! Kinda like tearing off the "Do Not Remove
Under Penalty Of The Law" tag from one's mattress! 8^o
George S.
> You are right, George.
>
> There are many ways in which a teleconverter can be designed, and in
> this case the design has been optimized for the lenses indicated on
> the converter.
>
> I do not know if the optical design of the prime lenses have been
> taken into account, or that the 'matching' applies to a certain range
> of focal lengths only. I think the first, since e.g. the 1.4xA is
> recommended for use with the 180/2 and not with the 180/2.8...
>
> But, as you already said, the converters may do good jobs with other
> lenses than the recommended ones as well.
>
> Frank van Lindert
> Utrecht NL.
>
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