I think smaller hole is not a problem unless you use the 80/4 or
135/4.5 with the tubes. Tube with smaller hole may not fit the lenses.
C.H.Ling
Dave Shupe wrote:
>
> I have a set of Quantaray extension tubes. They are automatic, 13mm, 21mm,
> & 31mm in length. The biggest difference in these and my Olympus 25mm Auto
> extension tube is the diameter of the inside of the tube. The Quantaray is
> 1.2" while the Olympus is 1.458". There does not seem to be any problem
> with the smaller hole, but I was wondering if it would be a cause for
> concern.
>
> Cheers!
>
> Dave Shupe
> kc7iek@xxxxxxxxx
>
> Latitude 47? 43' 1" North, Longitude 122? 6' 15" West
>
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