Pentax SMC DA 12-24MM F4.0 ED AL (IF), Lenses, SMC DA 50-200MM F4-5.6 ED, SMC DA 55-300MM F4-5.8 ED, SMC DA 17-70MM F4 AL (IF) SDM OPERATING MANUAL

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smc PENTAX-DA INTERCHANGEABLE LENS

OPERATING MANUAL

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.

The 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.

USING YOUR LENS SAFELY
USING YOUR LENS SAFELY	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 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.

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, 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.Be careful when handling lenses that are not dust-proof, water-resistant, or do not have simplified weather-resistant construction in the rain, fog or environments in which sand or dust is in the air.

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.

CONTENTS
CONTENTS	3

FOREWORD
USING YOUR LENS SAFELY .................................................................................	1
PRECAUTIONS AND LENS MAINTENANCE ........................................................	2
FEATURES OF THE smc PENTAX-DA LENS .......................................................	6
About dustproof, water resistance, and simplified weather resistance ................	7
smc PENTAX-DA LENS ..........................................................................................	8
About the DA lens mount ....................................................................................	9
About lenses with a supersonic motor ...............................................................	10
Precautions for using lenses equipped with a supersonic motor
the .......................................................................................................	11
MOUNTING AND REMOVING THE LENS ............................................................	12
LENS CAP .............................................................................................................	13
Attaching the dedicated lens cap to DA 15mm f/4ED AL Limited ......................	14
Attaching the dedicated lens cap to DA 40mm f/2.8 Limited .............................	14
FOCUSING .............................................................................................................	15
Changing the Focus Mode ................................................................................	15
For the DA lens ...............................................................................................	15
Using Autofocus ................................................................................................	16
Focusing with the OK Button .............................................................................	16
Using Manual Focus ..........................................................................................	18
Using the Quick-Shift Focus System .................................................................	18

How to use the Quick-Shift Focus System ........................................................	19
DA 200mm f/2.8ED [IF] SDM, DA 300mm f/4ED [IF] SDM focusing ............	21
Precautions on close-distance scale .................................................................	22
ZOOM LENS ..........................................................................................................	23
About the zoom ring ..........................................................................................	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
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 ....................................................................................................	45
Removing the Tripod Mount ..............................................................................	46
MAIN SPECIFICATIONS .......................................................................................	47

6 FEATURES 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 image sensors in PENTAX digital SLR cameras 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 19 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 DA 55mm f/1.4 SDM uses a circular aperture. Using it when stopping down from full aperture to about f/2.8 keeps light sources and other fuzzy points perfectly round.

About dustproof, water resistance, and simplified weather resistance

•Dust-proof and water-resistant lenses

DA 55mm f/1.4 SDM, DA 300mm f/4ED [IF] SDM, DA 200mm f/2.8ED [IF] SDM, DA 16-50mm f/2.8ED AL [IF] SDM, DA 50-135mm f/2.8ED [IF] SDM, DA 60-250mm

f/4ED [IF]SDM

These DA lenses are dust-proof and water-resistant because each part is individually sealed. This makes it difficult for dust and water to enter the lens.

•Lenses with simplified weather-resistant construction

DA 18-55mm f/3.5-5.6 AL WR, DA 50-200mm f/4-5.6ED WR

These lenses are made with a simplified weather-resistant construction by using DA lens sealing technology which makes it difficult for water to enter the lens.

		smc PENTAX-DA LENS
	8	smc PENTAX-DA LENS

	Focusing ring	Lens hood
		Lens hood
		attaching index
	Distance scale	Distance scale
	window	Distance scale
	window
	Depth-of-field scale	Depth-of-field scale
		Depth-of-field scale
	Mounting index	Distance index

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.

About the DA lens mount

The DA lens is an interchangeable lens specifically designed for PENTAX digital SLR cameras. There are three mounts for the DA lens, the KAF, KAF2 and KAF3.

KAF-mount

KAF2-mount

KAF3-mount

AF coupler	Lens information	AF coupler Lens information	Lens information
AF coupler	contacts	contacts	contacts
		Power supply contacts	Power supply contacts
		Lenses with a supersonic motor	Lenses with a supersonic motor
			(supersonic motor only)

Refer to the next page for more information on lenses with supersonic motors.

CAUTION

Be careful not to damage or dirty the lens mount surfaces as this can result in failure or malfunction.

About lenses with a supersonic motor

The lenses in the table below are equipped with internal supersonic motors. When mounted on a camera body that supports supersonic motors, the autofocus (AF) is quiet and smooth.

• Supersonic motor compatible camera body

/ , , , *,

* If the firmware is version 1.30 or later, refer to page 11.

Lens	Precautions

•The lens uses a supersonic motor. When the lens is mounted on a camera body that does not

		support supersonic motors (including the
		with firmware older than version 1.30),
	DA 55mm f/1.4 SDM	the autofocus cannot be operated by either the
	DA 55mm f/1.4 SDM	AF motor in the camera body or the supersonic
	DA17-70mm f/4 AL [IF] SDM	AF motor in the camera body or the supersonic
	DA17-70mm f/4 AL [IF] SDM	motor.
		motor.

	• If using the lens with the following cameras, and
	the power is turned on, MF appears in the monitor,
	but it does not interfere with AF operations.
	,	,	,

DA 60-250mm f/4ED [IF] SDM	When the lens is mounted on a camera body that
DA 16-50mm f/2.8ED AL [IF] SDM	does not support supersonic motors (including the
DA 50-135mm f/2.8ED [IF] SDM	with firmware older than version 1.30), the
DA 200mm f/2.8ED [IF] SDM	autofocus is operated by the AF motor in the camera
DA 300mm f/4ED [IF] SDM	body.

* In both cases focusing can be done manually.

Precautions for using lenses equipped with a supersonic motor on the

When using lenses equipped with a supersonic motor on the , use camera firmware version 1.30 or later.

•How to Check and Update the Firmware

Holding-down the MENU button while turning ON the will display the firmware version in the center of the display.

Download and install the firmware update for the using the link below.

•Firmware Download Page: http://www.pentax.jp/english/support/download_digital.html

		MOUNTING AND REMOVING THE LENS
	12	MOUNTING AND REMOVING THE LENS

Mounting index

1.To mount the lens on the camera body

Attach the lens while aligning the red dots on the lens and body, then turn the lens clockwise until it clicks in place.

"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 to make sure it is locked in place.

2.To remove the lens

Hold down the lens unlock button on the camera body and turn the lens counterclockwise.

LENS CAP
LENS CAP	13

Take off the lens cap by pressing the two tabs inward.

"Memo:

•When not using the lens, be sure to attach the lens cap.

•Attach the dedicated lens cap over the lens hood on the DA 21mm f/3.2 AL Limited, DA 35mm f/2.8 Macro Limited, DA FISH-EYE 10-17mm f/3.5-4.5ED [IF], and DA 70mm f/2.4 Limited. Also, with the DA 21mm f/3.2 AL Limited, DA 40mm f/2.8 Limited, and DA 70mm f/2.4 Limited, it is possible to mount the F49mm lens cap (option) by removing the lens hood.

Pentax SMC DA 12-24MM F4.0 ED AL (IF), Lenses, SMC DA 50-200MM F4-5.6 ED, SMC DA 55-300MM F4-5.8 ED, SMC DA 17-70MM F4 AL (IF) SDM OPERATING MANUAL

Attaching the dedicated lens cap to DA 15mm f/4ED AL Limited

Screw the lens cap to the front of the lens.

Attaching the dedicated lens cap to DA 40mm f/2.8 Limited

First screw the dedicated hood onto the front of the lens, then screw the lens cap onto the lens hood.

FOCUSING
FOCUSING	15

Changing the Focus Mode

Use the camera’s focus mode switch to change between autofocus mode and manual focus mode. For details, refer to your camera operating manual.

For the DA lens

The focus mode switch on the DA lens is used to change between the autofocus and manual focus modes

(the focus mode switch on the camera is always set to autofocus).

To use the autofocus, set the switch to the AF position. To use the manual focus, set the switch to the MF position.

Focus mode switch

Using Autofocus

Set the focus mode to autofocus. Press the shutter release button halfway to autofocus. With the , , or / cameras, you can also press the AF button to autofocus.