William Sommerwerck wrote:
> This lens also had a GN coupler. You set the guide number of your
flash
> on the lens, and when the coupler was engaged, the lens opening
> automatically varied as you focused the lens -- automatic flash
exposure
> from a manual flash.
That's a surprise to me. Olympus never mentioned this feature in any
of their brochures, even the dealer info. notebook I have. Seems to
me that with such a unique feature, Olympus should have marketed it
better.
Also, another unique feature of this lens is the close focusing to
0.3m. This gives you a field of view of 12 x 18 cm. This is a
smaller field of view than any other non-macro Zuiko lens.
Bill Rice
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