> I like putting 14mm of extension behind a 24/2.8. It allows me to get
> "inside" flowers. Putting a 21mm extension tube on a 24/2.8 allows
> you to
> focus on things sitting on the flont element. Obviously working
> distance is
> compromised--but focussing is easier. <g>
>
Ken, I guess if you use the 25mm tube you can do a thorough
check for mould on the internal elements of the lens !
...Wayne
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