Pentax smc PENTAX-DA Manuale utente
smc PENTAX-DA
INTERCHANGEABLE LENS
OPERATING MANUAL
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FOREWORD
Thank you for purchasing the smc PENTAX-DA lens.
Please read this operating manual carefully before using the lens to ensure that it is
used properly. In addition, also refer to your camera operating manual.
smc PENTAX-DA lens can be used exclusively with PENTAX digital SLR
cameras. This lens is not compatible with film SLR cameras.
• In this operating manual, “smc PENTAX-DA lens” is shortened to “DA lens.”
• Illustrations shown herein may differ from the actual appearance.
• PENTAX and smc PENTAX are trademarks of HOYA CORPORATION.
• SDM is a trademark of HOYA CORPORATION.
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USING YOUR LENS SAFELY
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 symbol indicates precautions that if not followed,
could result in serious injuries to the user.
CAUTION This symbol indicates precautions that if not followed,
could result in minor or medium injuries to the user or
damage to the equipment.
WARNING
• Never look at the sun through the lens or camera for a long time. Serious damage
to the retina or total loss of eyesight may occur, particularly when looking directly
through the lens.
CAUTION
• Do not leave the lens in direct sunlight without the lens cap. Direct sunlight
passing through the lens will be intensified, and should it focus on flammable
materials, fire may occur.
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2PRECAUTIONS 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, or plastic bag.
(Leaving a saturated desiccant in the storage container can cause damage to the lens. Be sure
to read the instructions that come with the desiccant before use.)
2. The following lenses are dust and water resistant.
(DA300mm f/4ED [IF] SDM, DA200mm f/2.8ED [IF] SDM, DA16-50mm f/2.8ED AL [IF] SDM,
DA50-135mm f/2.8ED [IF] SDM)
Lenses other than those listed above are not dust and water resistant. Be careful not to allow dust,
dirt, water, harmful gases, salt, or other materials to get on those lenses.
3. 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, etc.
4. Never use any organic solvent such as thinner, alcohol, or benzine, etc. to remove dust on the lens.
5. 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.
6. 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.
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.
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CONTENTS
FOREWORD
USING YOUR LENS SAFELY ................................................................................. 1
PRECAUTIONS AND LENS MAINTENANCE ........................................................ 2
FEATURES OF THE smc PENTAX-DA LENS ....................................................... 6
smc PENTAX-DA LENS .......................................................................................... 7
About the DA lens mount .................................................................................... 8
About lenses with a supersonic motor ................................................................. 9
Precautions for using lenses equipped with a supersonic motor on
the ........................................................................................................ 10
MOUNTING AND REMOVING THE LENS ............................................................ 11
LENS CAP ............................................................................................................. 12
Attaching the dedicated lens cap to DA 40mm f/2.8 Limited ............................. 13
FOCUSING ............................................................................................................. 14
Changing the Focus Mode ................................................................................ 14
For the DAlens .............................................................................................. 14
Using Autofocus ................................................................................................ 15
Focusing with the OK Button ............................................................................. 15
Using Manual Focus .......................................................................................... 17
Using the Quick-Shift Focus System ................................................................. 17
How to use the Quick-Shift Focus System ........................................................ 18
DA200mm f/2.8ED [IF] SDM, DA300mm f/4ED [IF] SDM focusing .......... 20
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4
Precautions on close-distance scale ................................................................. 21
ZOOM LENS .......................................................................................................... 22
About the zoom ring .......................................................................................... 23
About the zoom lock switch ............................................................................... 24
MACRO LENS ....................................................................................................... 25
Magnification Scale ........................................................................................... 25
ATTACHING THE LENS HOOD ............................................................................ 26
Screw-on Type (DA 70mm f/2.4 Limited dedicated lens hood) ......................... 26
Screw-on Type (DA 40mm f/2.8 Limited dedicated lens hood) ......................... 27
Bayonet Type .................................................................................................... 27
Bayonet Type (DA 21mm f/3.2 AL Limited dedicated lens hood) ...................... 28
About the PL filter window ................................................................................. 29
Built-in lens hood ............................................................................................... 31
FILTERS ................................................................................................................. 32
Precaution on filters ........................................................................................... 32
Attaching the 30.5mm filter to the DA 40mm f/2.8 Limited lens ......................... 32
Attaching a filter and the dedicated lens hood to the DA 21mm f/3.2
AL Limited lens .................................................................................................. 33
Attaching a filter and the dedicated lens hood to the DA 70mm f/2.4
Limited lens ....................................................................................................... 34
Circular polarizing filters and vignetting ............................................................. 35
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Compatibility table for PENTAX circular polarizing filters .................................. 36
PRECAUTIONS WHEN USING THE LENS WITH A FLASH ............................... 40
Built-in Flash ...................................................................................................... 40
External Flash ................................................................................................... 40
Compatibility of DA Lenses with the Built-in Flash ............................................ 42
TRIPOD MOUNT .................................................................................................... 44
Removing the Tripod Mount .............................................................................. 45
MAIN SPECIFICATIONS ....................................................................................... 46
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6FEATURES OF THE smc PENTAX-DA LENS
• The smc PENTAX-DA lens is an interchangeable lens specifically designed for digital
cameras. Its image circle is specialized for the image sensor (23.5 x 15.7mm) and its
optical system is optimized for the characteristics of digital images.
• When autofocusing is finished, it is possible to make fine adjustments by hand using the
“Quick-Shift Focus System” (see page 18 for details).
• Lenses that have “SDM” in their name are equipped with a supersonic motor. When
mounted on a camera that supports supersonic motors, the autofocus is quiet and
smooth.
• The following lenses are dust and water resistant because each part is individually
sealed. This makes it difficult for dust and water to enter inside the lens.
DA300mm f/4ED [IF] SDM, DA200mm f/2.8ED [IF] SDM, DA16-50mm f/2.8ED AL
[IF] SDM, DA50-135mm f/2.8ED [IF] SDM
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smc PENTAX-DA LENS
Note:
• The DA lens does not have an aperture ring. Aperture settings are controlled
automatically as if set to the auto “A” position, so accessories without an auto
“A” setting cannot be used with this lens.
• The DA lens is not compatible with film SLR cameras.
Focusing ring
Distance scale
window
Depth-of-field scale
Mounting index
Lens hood
attaching index
Distance scale
Depth-of-field scale
Distance index
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8
About the DA lens mount
The DA lens is an interchangeable lens specifically designed for the PENTAX digital SLR
cameras.
There are three mounts for the DA lens, the KAF, KAF2 and KAF3.
Refer to the next page for more information on lenses with supersonic motors.
KAF-mount KAF2-mount KAF3-mount
Lenses with a supersonic motor
Lenses with a supersonic motor
(supersonic motor only)
CAUTION
Be careful not to damage or dirty the lens mount surfaces as this can result in failure
or malfunction.
AF coupler Lens-information
contacts Power supply contacts
Lens-information
contacts
AF coupler
Power supply contacts
Lens-information
contacts
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