Mojtaba wrote:
> Dear all,
>
> I just won an eBay auction on an extention tube for Pentax screw
> mount. I am not familiar with this equipment. I have heard that they
> are good for macro work. Anybody has used them? What are they good
> for?
>
Just that, macro work. All an extension tube will do is let a lens
focus closer.... wonderful tool. Try it on a long lens, say a 300 mm.
and you can get some marvelous effects with shallow depth of field on
such subjects as flower portraits.
Cheers, Mike.
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