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04-17-2012, 08:46 AM   #1
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18-55mm K-5 Kit lense and reverse mount

Hi everybody
I was wanting to use a reverse mount for my k-5 and have heard that you can adjust the aperture buy holding the DoF button down while removing the lense? is this correct? I have tried however it does not seem to work, I'm using the 18-55 kit lense.

Thanks
adam

04-17-2012, 09:18 AM   #2
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Once the lens is removed there is no aperture control without an aperture ring. If you want to reverse a lens get a cheap manual focus lens.

https://www.pentaxforums.com/forums/pentax-lens-articles/152336-cheap-macro-b...lose-work.html
04-17-2012, 10:08 AM   #3
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The DA18-55 *can* be reversed, with the aperture held open with a small tube stuck onto the aperture link lever. But that's very inexact control. An older lens with an aperture ring allows much more precise control. As @boriscleto mentioned, see my article on cheap macro options.

One cheap possibility is to get an old A35-80/4-5.6 zoom. As a normal lens, it's lousy. Reversed, it's a not-bad macro-zoom. Use a section of ultra-cheap PK-mount macro tube as a lens hood. Have fun!
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