Hi, Debra, You don't lose a stop, but you lose the automatic aperture feature of the lens. In other words, you'll be doing it the "old fashioned way". Like, real old fashioned.
You physically stop down the aperture to get your exposure, the aperture stays stopped down, and you activate the shutter. The aperture will then stay stopped down after the exposure. Hope this answers your question. regards, frank Debra Wilborn wrote: > Quick question: > > If I use a thread-mount to K-mount adapter, will I > lose an f-stop like I would if I used a teleconverter? > -- "The optimist thinks this is the best of all possible worlds. The pessimist fears it is true." -J. Robert Oppenheimer - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
