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smc PENTAX-D FA
INTERCHANGEABLE LENS
OPERATING MANUAL
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FOREWORD Thank you for purchasing the smc PENTAX-D FA lens. The smc PENTAX-D FA lens is an interchangeable lens for Pentax SLR cameras. Its image circle covers the 35mm film format, and it also obtains optimum image clarity with Pentax digital SLR cameras. When the lens is used with an -series digi- tal SLR camera, the Quick-Shift Focus System enables manual touch-up focusing after autofocus is achieved. For details, see page 12. Before using the lens, read this manual carefully for proper use.
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FOR SAFE USE OF YOUR LENS 1 Although we have carefully designed these lenses for safe operation, please pay special attention to items marked with the following symbols when using this product. WARNING This mark indicates precautions that if not followed, could result in serious injury to the user. CAUTION This mark indicates precautions that if not followed, could result in minor or medium injury to the user or damage to the equipment. WARNING • Never look at the sun through the lens or camera.
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2 PRECAUTIONS AND LENS MAINTENANCE 1. Storage and mildew prevention • Take the lens out of the protective case or camera bag, and store it in a dry, well- ventilated place. • Avoid storing the lens in a poorly ventilated location such as a closet, wardrobe, drawer, vehicle, or where insect repellent or medicine is kept. • Avoid storing the lens in areas of high temperature and humidity, where there is a risk of mildew growth. Store the lens with a desiccant in a dry cabinet, airtight container,
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3 5. Avoid subjecting the lens to rapid changes in temperature, otherwise condensation can occur on both the inside and the outside of the lens. Put the lens in a plastic bag or camera bag, and take it out after the lens has reached ambient temperature. 6. When the lens is not attached to the camera body, attach both the supplied lens cap and lens mount cap to protect it from dust. 7. Do not leave the camera with the lens cap off attached to a tripod or other rigid camera support. The inner part
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4 CONTENTS FOREWORD ° FOR SAFE USE OF YOUR LENS ··········································································· 1 ° PRECAUTIONS AND LENS MAINTENANCE ····················································· 2 ° smc PENTAX-D FA LENS ······················································································· 6 ° • About the Lens Mount ································································································ 7 • Camera/Lens Mount Compatibility ············
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5 MACRO LENS ·········································································································· 16 ° • Magnification Scale···································································································· 17 • About the Clamp Switch ···························································································· 18 LENS HOOD ·············································································································· 19 ° FIL
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6 smc PENTAX-D FA LENS Focusing ring Front-ring threads Distance scale Aperture ring Depth-of-field scale Aperture-A-lock button
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7 About the Lens Mount The D FA lens mount is called the “KAF - mount.” This lens mount enables autofocus and autoexposure. KAF-mount AF coupler Lens information contacts CAUTION Be careful not to damage or dirty the lens information contacts and AF coupler on the mount surface of the lens. Otherwise, failure or malfunction may result.
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8 Camera / Lens Mount Compatibility Pentax camera/lens mount compatibility chart is shown below. KAF2-mount which is equipped with Power contacts ° AF coupler ° Lens information contacts ° KAF-mount which is equipped with AF coupler ° Lens information contacts ° KA-mount which is equipped with Lens information contacts ° K-mount (base mount)
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MOUNTING AND REMOVING THE LENS 9 1 2 1. To mount the lens on the camera body Align the red dots on the lens and camera body, and then turn the lens clockwise until it clicks into place. Push the tabs in the directions shown by the arrows to remove the lens cap. Attach the lens cap when the lens is not used. ✍ Memo: • Do not hold down the lens unlock button while mounting the lens, otherwise the lens will not be properly mounted. • After mounting the lens, gently turn the lens counterclockwise t
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10 FOCUSING 1 2 1 1. Switching the Focus Mode Use the camera’s focus mode switch to change between the autofocus mode and manual-focus mode. For details, refer to your camera’s manual. • If you use the lens with a manual-focus camera, focus the lens manually. 2. Using Autofocus Set to autofocus with the camera’s focus mode, and press the shutter button halfway or press the AF button of and MZ-S to autofocus. • Note that during the autofocus operation, the D FA lens’ focusing ring does not rotate
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11 3 3. Using Manual Focus Set to MF with the camera’s focus mode, and turn the focusing ring to focus manually. • If the lens is used with a camera, you must set the focus mode switch to MF before you focus manually. Note: When focusing manually, do not turn the focusing ring all the way to infinity or to the minimum focusing distance.
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12 Using the Quick-Shift Focus System ( -series cameras only) If you use the lens with an camera and the focus mode is set to autofocus, you can focus manually after autofocus is achieved. Just turn the focusing ring to manually touch- up the focus. You can do this without switching the focus mode to MF. How to use the Quick-Shift Focus System 1. Using Autofocus Set the camera’s focus mode switch to autofocus, then press the shutter button halfway (or press the AF button) to autofocus. 2. Adjust
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HOW TO USE THE INFRARED INDEX 13 If you use infrared film and attach an R2 or O2 filter to the lens to take infrared pictures, the point of focus will be different from when you shoot normally (with visible light). A focusing correction will be necessary. As shown above left, memorize the focusing point on the lens distance scale when viewed through the viewfinder and turn the focusing ring until the point you memorized aligns with the infrared index, red dot, as shown above right. • Infrared fi
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14 APERTURE CONTROL Setting the aperture to “A”(Auto) Turn the aperture ring to align the aperture-A index with the white line while depressing the Aperture-A-lock button. The aperture ring can be released from “A” in the same manner to set your desired f-stop manually. • If the camera has the KAF2 lens mount and the aperture is not set to A, the approximate aperture setting will be displayed on the display panel and in the viewfinder. • If the camera has the K lens mount which has no electronic
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15 Aperture Ring Cautions The following restrictions apply to the respective cameras below. If the camera is set to the default settings and the aperture ring is not set to A, the camera will not work. Be sure to set the -series, aperture ring to A and set the aperture with the camera. Although you can use the Custom Function menu or C Custom menu to enable camera operation while the aperture ring is not set to A, restrictions will apply. Refer to the camera’s manual for details. If the aperture
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16 MACRO LENS The D FA Macro 50mm f/2.8 and D FA Macro 100mm f/2.8 lenses enable closeup photography up to 1x magnification. Clamp Switch
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17 Magnification Scale The magnification is indicated by denominators on the distance scale. “1” indicates “1x”. For example, “1” on the magnification scale at the top will make the magnification 1/1x. If you want to set the magnification first, turn the focusing ring to set the desired magnification. Then focus the subject by moving the camera forward or back.
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18 About the Clamp Switch The D FA Macro 50mm f/2.8 and D FA Macro 100mm f/2.8 lenses are equipped with a Clamp switch which is convenient for manual focus. The Clamp switch locks the manual focus position. You can use it when taking close-ups with a copy stand, for example. Using the Clamp Switch Focus manually, then set the Clamp switch to ON. The point of focus will be locked. Autofocus will also be disabled. • Do not turn the focusing ring forcibly while setting the Clamp switch to ON becaus
