Depends. A 7 mm tube allows me to use the 1.4X-A on a Sigma 400/5.6 and
focus out to 25 feet or so. Other lenses may require a 14 mm tube. Lost
focus distance will be more serious for shorter lenses.
Gary Edwards
----- Original Message -----
From: "M. Royer" <royer007@xxxxxxxxx>
To: <olympus@xxxxxxxxxxxxxxx>
Sent: Wednesday, October 31, 2001 10:25 AM
Subject: [OM] Using 1.4X-A + auto extension tube to use on lenses
> Will the 1.4x-a + an auto extension tube allow one to
> safely and effectively use the 1.4x-a with lenses not
> designed for this teleconverter. Is it worth pursuing
> or will the changes in distance make the telconverter
> somewhat useless? This is kind of a moot point since I
> don't own a 1.4x-a, but I might be getting one in the
> future.
>
> Mark Lloyd
>
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