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Chinon Auto Focus

  

50mm F1.7 lens

  

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Summary of Contents for Auto Focus 50mm F1.7

Page 1: ...with Chinon Co Japan If you find this manual useful how about a donation of 2 to M Butkus 29 Lake Ave High Bridge NJ 08829 1701 and send your e mail address so I can thank you Most other places would charge you 5 50 for a electronic copy or 10 00 for a hard to read Xerox copy This will help me to continue to host this site buy new manuals and pay their shipping costs It ll make you feel better won...

Page 2: ... Actually this lens can work on any K mount camera It will not lock the shutter if the image is out of focus on non Chinon cameras Since it sends out it s own IR light it works in very dark setting NOMENCLATURE ...

Page 3: ...Auto focus button INTRODUCTION Welcome to the world of CHINON photography Chinon has developed a new infrared auto focus system which permits stepless operation even in total darkness How It Works An infrared Light Emitting Diode LED sends out an infrared beam to the subject The beam is then reflected back to the cameras internal infrared receiving sensor The angle at which the infrared reflected ...

Page 4: ...the 50 mm AF you do not have to worry about the often time consuming task of focusing CARE OF THE AUTO FOCUS LENS Your CHINON auto focus lens is a precision instrument Used with care it will provide years of service Protect your lens from dirt rain dampness and excessive heat Avoid touching the lens To clean the lens wipe it gently with a soft lintless cloth or lens tissue Do not use eyeglass tiss...

Page 5: ...ction 6 elements in 5 groups Angle of View 46 Filter Size 58mm Lens Mount Chinon Bayonet Mount Dimensions 99 W x 79 H x 54 L mm 3 3 9 x 3 1 1 x 2 1 2 Weight 425 grams 14 99 oz without batteries INSTALLING THE BATTERIES Turn the lock at the bottom of the auto focus unit to the O position and remove the battery chamber cover fig 1 Insert three AAA 1 5 V Alkaline batteries LR03 into the battery chamb...

Page 6: ... holding it for 4 5 seconds The battery check LED green on the focusing panel will illuminate if the battery voltage is sufficient fig 3 NOTE The battery check LED green on the focusing panel will not illuminate if the batteries are installed incorrectly MOUNTING THE LENS 1 Remove the rear lens cap from Chinon auto focus lens fig 4 2 Remove the lens or body cap from your camera body fig 5 3 Attach...

Page 7: ...s opening are engraved in green When lighting conditions require larger lens openings we suggest checking the focus with the focusing grid in the viewfinder DO NOT cover the auto focus windows with your fingers Otherwise the lens will not focus properly The following subjects should be avoided when using your 50 mm AF lens in the auto focus mode Shiny subjects such as water surfaces or exterior of...

Page 8: ...y described then remove your finger from the auto focus button The focus will automatically lock Next recompose your picture with the subject in the desired position in the viewfinder and depress the shutter release button fig 9 INFRARED PHOTOGRAPHY When using infrared film an extra focusing adjustment must be made manually After focusing note the figure that is adjacent to the green indication li...

Page 9: ...owing three accessories are not recommended 1 Close up lens 2 Lens hood 3 Extension Tubes NOTE When the lens must be used with one of the above accessories focusing must be adjusted manually NOTE Filters such as polarizes starburst or any other type which requires rotation to achieve desired effects should be adjusted AFTER the AF lens has been focused ...

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