Extension tubes question

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Michael Piziak
Michael Piziak Contributing Member • Posts: 555
Extension tubes question

I have a set of Asahi extension tube(s).

I see that you can put extension tubes on about any lens - I have only used them on my macro lens, but I through them onto my kit lens to see if it worked.

It did work and I was surprised that I could get about as close as with the macro lens. However, there is no aperture ring on the kit lens, so what determines the F ?

 Michael Piziak's gear list:Michael Piziak's gear list
Pentax K-r Pentax smc DA 18-55mm F3.5-5.6 AL Pentax smc DA 55-300mm F4.0-5.8 ED +1 more
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