Cameras/Pentax Lenses
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Question
What is the difference between an AF and a KAF lens mount?
Hello Silvio,
Sorry I didn't get back to you right away, but there was a glitch in the AllExperts forwarding system and I just got your question a few minutes ago!
AF is a generic label for auto focus. All the major 35mm camera manufacturers offer cameras and lenses in some sort of AF interchangeable lens mount. KAF is specifically the auto focus mount for Pentax cameras. When Pentax changed in the 1970's from screw-in type lenses to an improved form of click-on bayonet mount, they called it their K mount. When they later eventually began making auto focus cameras with interchangeable lenses, they simply adapted their successful K mount to auto foucs capability and called it the KAF mount. To answer your probable next question, KAF lenses will *only* mount onto Pentax auto focus single lens reflex cameras, and Pentax auto focus single lens reflex cameras *only* accept lenses with the KAF mount (or some of their earlier non-auto focus K and KA mount lenses).
Best wishes,
David Silver
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David Silver
Expertise
I'm an expert on all types of antique, classic, and contemporary cameras, as well as the general history of photography. Everything from ancient box cameras to modern single-lens-reflex; from simple Kodaks to sophisticated Leica and Nikon; from glass plates and roll film to movie and 35mm. I can identify and appraise them, explain how they work, and offer insights on their restoration and care. I can also provide historical background on vintage cameras and equipment, and guidelines on their purchase and sale.
Experience
I've been a professional photographer and a student of the history of photography for nearly 30 years. During that time my collection of vintage cameras and photographic paraphernalia has grown beyond 2000 significant pieces. I've published nearly 70 articles in the field, including 16 in the popular "Buying Classic Cameras" series for PHOTO SHOPPER MAGAZINE from 1995 to 1997, I'm currently a contributing editor for CAMERA SHOPPER MAGAZINE and McKEOWN'S PRICE GUIDE TO ANTIQUE AND CLASSIC CAMERAS, and I've written numerous entries for WORLD BOOK ENCYCLOPEDIA. Portions of my collection have been displayed in museums and special exhibits in the past two decades, and many of the items were photographed as illustrations for books. In 1985 I founded the International Photographic Historical Organization (InPHO), which eventually evolved into its intended purpose as the best first resource for information on the history of photography. I'm also a founding member of several e-mail forums dedicated to specialized areas of photography, and I'm the moderator of the Internet Directory of Camera Collectors (IDCC), which remains the largest and most successful such group in the world. For more information about the International Photographic Historical Organization and its many services, please visit its web pages at:
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