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Forum: Pentax Camera and Field Accessories
04-07-2019, 01:26 PM
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A cheap way to get some extension for lenses that have no aperture ring is to find a teleconverter with "A" contacts and remove the glass elements from it. You might need to paint the interior with flat black paint to cover any bare metal revealed by the removal of the optics. A 2x converter, if I recall correctly, gives about 25mm of extension. This Fotodiox adapter, originally intended to permit the mounting of PK lenses to Nikon bodies, can be used to control the aperture on reversed lenses lacking an aperture ring. I will be using one of these, with the optics removed, to expand my selection of lenses for reverse lens techniques.
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