Pentax SMC PENTAX D FA 50MM F2.8, SMC PENTAX D FA 100MM F2.8, SMC D FA 100MM F2.8 MACRO, smc PENTAX-D FA LENS, SMC D FA 50MM F2.8 MACRO Operating Manual
smc PENTAX-D FA
INTERCHANGEABLE LENS
OPERATING MANUAL
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 digital 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. Also refer to your
camera’s manual for more information.
In this operating manual, “smc PENTAX-D FA lens” is shortened to “D FA lens.”
The items appearing in the illustrations may look different from the actual product.
PENTAX and smc PENTAX are trademarks of PENTAX Corporation.
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. Serious damage to the retina, or
total loss of eyesight may occur.
CAUTION
• Do not leave the lens in direct sunlight without lens caps. Direct sunlight passing
through the lens will be intensified, and should it focus on flammable materials, fire
may occur.
PRECAUTIONS AND LENS MAINTENANCE
2
1. Storage and mildew prevention
• Take the lens out of the protective case or camera bag, and store it in a dry, wellventilated 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, or plastic bag. (Leaving
a saturated desiccant in the storage container can cause damage to the lens. Be sure to
read the instructions that came with the desiccant before use.)
2. The lens is not waterproof. When using the lens in a rain or mist, be careful not to allow
it to get wet.
3. Never use any organic solvent such as thinner, alcohol, or benzine, etc. to remove dust
on the lens.
4. The lens is a precise optical instrument. Be careful not to let it fall, or subject it to strong
shocks or pressure. Use a cushion or similar pad to protect the lens from the vibrations
of motorcycles or other vehicles, boats, etc.
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 parts of the camera can be damaged by direct sunlight.
8. Have the lens inspected by a dealer every one or two years to maintain its high
performance.
CONTENTS
4
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FOREWORD
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FOR SAFE USE OF YOUR LENS ··········································································· 1
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PRECAUTIONS AND LENS MAINTENANCE ····················································· 2
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smc PENTAX-D FA LENS ······················································································· 6
• About the Lens Mount ································································································ 7
• Camera / Lens Mount Compatibility ············································································· 8
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MOUNTING AND REMOVING THE LENS ··························································· 9
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FOCUSING ··················································································································· 10
• Switching the Focus Mode ······················································································· 10
• Using Autofocus ········································································································ 10
• Using Manual Focus ·································································································· 11
• Using the Quick-Shift Focus System ( -series cameras only) ························ 12
• How to use the Quick-Shift Focus System ································································ 12
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HOW TO USE THE INFRARED INDEX ······························································· 13
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APERTURE CONTROL ··························································································· 14
5
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MACRO LENS ·········································································································· 16
• Magnification Scale···································································································· 17
• About the Clamp Switch ···························································································· 18
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LENS HOOD ·············································································································· 19
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FILTERS······················································································································ 20
• Precaution on filters ··································································································· 20
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PRECAUTIONS WHEN USING THE LENS WITH A FLASH··························· 21
• Built-in Flash ·············································································································· 21
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MAIN SPECIFICATIONS ························································································ 22
smc PENTAX-D FA LENS
6
Aperture ring
Distance scale
Front-ring threads
Depth-of-field scale
Aperture-A-lock button
Focusing ring
7
AF coupler
Lens information
contacts
About the Lens Mount
The D FA lens mount is called the “KAF - mount.” This lens mount enables autofocus and
autoexposure.
KAF-mount
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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