The world's leading camera reference. McKeown's is a comprehensive guide to over 10,000 cameras from the earliest years to the present. Over 3,500 different models are illustrated. Descriptions of cameras include detailed historical and technical information, plus capsule histories of the camera manufacturers. All entries are fully indexed for rapid access. Prices are based on up-to-the-minute sales data from a giant computer database of worldwide camera sales. Also included are lists of camera collector clubs, museums, information on dating cameras from patent numbers and shutter types, and conversion tables from metric to English film sizes. This book is a must for camera and antique buffs, and is often called the "bible" of camera collectors. This is the standard reference worldwide for collectible cameras.