Pentax DA 14mm f/2.8ED (IF), DA 16-45mm f/4ED AL, DA18-55mm f/3.5-5.6 AL, DA 40mm f/2.8 Limited Operating Manual

smc PENTAX-DA
INTERCHANGEABLE LENS

OPERATING MANUAL

FOREWORD

Thank you for purchasing the smc PENTAX-DA lens.

This smc PENTAX-DA lens features a “Quick-Shift Focus System” that lets you finely
adjust the focus manually after the focus has been adjusted in addition to allowing
you to enjoy taking pictures using autofocus or manual focus by mounting on the
PENTAX -series digital SLR camera. For further information on the use of this
function, refer to p10.

This lens can be used only with PENTAX -series SLR cameras. It is not
compatible with film SLR cameras.

Please read this operating manual carefully before using the lens to ensure that it is
used properly. In addition, also refer to your camera’s operating manual.

In this operating manual, “smc PENTAX-DA lens” is shortened to “DA lens.”
Illustrations shown herein may differ from the actual appearance.

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 symbol indicates precautions that if not followed,

could result in serious injury to the user.

CAUTION This symbol 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, 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 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.

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

3

°

FOREWORD

°

FOR SAFE USE OF YOUR LENS ···························································································· 1

°

PRECAUTIONS AND LENS MAINTENANCE ········································································· 2

°

smc PENTAX-DA LENS ·········································································································· 4

• About the DA Lens Mount ····································································································· 5

°

MOUNTING AND REMOVING THE LENS ·············································································· 6

°

LENS CAP ······························································································································· 7

°

FOCUSING ······························································································································· 8

• Changing the Focus Mode ···································································································· 8

• Using Autofocus ···················································································································· 8

• Using Manual Focus ··············································································································9

• Using the Quick-Shift Focus System ( -series cameras only) ································· 10

• How to use the Quick-Shift Focus System ·········································································· 10

• Precautions on close-distance scale ··················································································· 12

°

ZOOM LENS··························································································································· 13

• About the zoom ring·············································································································14

°

ATTACHING THE LENS HOOD ····························································································· 15

• Screw-on Type····················································································································· 15

• Bayonet Type······················································································································· 15

• About the PL filter window ··································································································· 16

°

FILTERS ································································································································· 18

°

PRECAUTIONS WHEN USING THE LENS WITH A FLASH ················································· 20

• Built-in Flash ························································································································ 20

• External Flash ······················································································································ 20

• Compatibility of DA Lenses with the Built-in Flash ······························································ 21

°

MAIN SPECIFICATIONS ········································································································ 22

smc PENTAX-DA LENS

4

Focusing ring

Distance scale
window

Depth-of-field scale

Mounting index

Lens hood
attaching index

Distance scale

Distance index

Depth-of-field scale

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.

5

AF coupler

Lens-information
contacts

About the DA lens mount

The DA lens is an interchangeable lens specifically designed for the PENTAX - series
digital SLR camera.
The KAF -mount of the DA lens is similar to conventional SLR lenses, but the DA lens cannot
be used on 35 mm SLR cameras.

KAF-mount

CAUTION

Be careful not to damage or dirty the lens-information contacts and AF coupler
on the mount surfaces of the camera and lens. Otherwise, failure or
malfunction may result.

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.

✍

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.

MOUNTING AND REMOVING THE LENS

6

1 2

1. Take off the lens cap by pressing the two tabs inward as shown above.

2. 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 on the lens cap.

✍

Memo:

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

LENS CAP

7

1

22

FOCUSING

8

1

Changing the Focus Mode

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

1. Using Autofocus

Set to autofocus with the camera’s focus mode, and press the shutter button halfway or
press the AF button of to autofocus. Above left illustaration is for .

CAUTION

During autofocusing, the focusing ring of following lenses will rotate.

• To prevent malfunction, do not touch the focusing ring during autofocusing.

- DA 16-45mm f/4ED AL

- DA 18-55mm f/3.5-5.6 AL

- DA 40mm f/2.8 Limited

9

2

2. Using Manual Focus

Set to MF with the camera’s focus mode, and turn the focusing ring to focus manually.

Using the Quick-Shift Focus System ( -series cameras only)

If you use the lens with an -series 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 changing 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
to autofocus.
With the , you can also focus with the AF button. With the , you can
focus by pressing the OK button. (Assuming that the “OK btn when shooting” in the
“C Custom Setting” menu is set to “2 Enable AF.”)

2. Hold down the shutter button halfway (or press the AF button or OK button),

then turn the focusing ring to focus.

3. Finally, press the shutter release button fully to take a picture.

10

11

CAUTION

During autofocusing, the focusing ring of following lenses will rotate.

• To prevent malfunction, do not touch the focusing ring during autofocusing.

- DA 16-45mm f/4ED AL

- DA 18-55mm f/3.5-5.6 AL

- DA 40mm f/2.8 Limited

• When using the Quick-Shift Focus System, keep pressing the shutter button (or AF
button) after you achieve focus and before taking a picture. If you let go of the shutter
button before taking the picture, you will have to focus all over again when you press
the shutter button again.
In the following cases, you can take the picture without autofocusing after letting go
of the shutter button.

• With the , set the “AF with Press Halfway” Custom Function to off. To

autofocus, press the AF button.

• With the , in the “C Custom Setting” menu, set “OK btn when shooting” to

“3 Cancel AF.” While you press the OK button, you can focus manually.
The setting procedure and more details are explained in the camera's instruction
manual.

12

Close-distance scale

Precautions on close-distance scale
(For DA 16-45mm f/4ED AL, DA18-55mm f/3.5-5.6 AL)

In the close-distance scale range (the distance scale in the orange area), when shooting at
the maximum aperture, image quality deterioration in the picture corners may result
because of the optical characteristics of the lens.
When taking a picture in this range, we recommend that you use a smaller aperture,
stopping down from wide open.

ZOOM LENS

13

Focusing ring

Distance scale

Zoom index

Mounting index

Zoom ring

Focal length scale

Focusing index

Lens hood
attaching index

14

The zoom lens has a focusing ring at the front and a zoom ring behind it.
Turn the zoom ring to set the desired angle of view (lens focal length).

✍

Memo:

• The focusing point may shift slightly by changing the focal length. First adjust the zoom
and then adjust focus.

About the zoom ring

Turn the zoom ring clockwise for telephoto and counterclockwise for wide-angle.

ATTACHING THE LENS HOOD

15

Lens hood
attaching
index

1. Screw-on Type

If the lens hood is dedicated to the DA 40mm f/2.8 Limited, screw it onto the front of the
lens.

2. Bayonet Type

When attaching the lens hood, align the index on the lens hood with the attaching index
on the lens, and push both parts straight toward each other. Attach the lens hood on the
lens by turning the hood in the clockwise direction to lock it as viewed from the front of
the lens until it clicks into position.

✍

Memo:

• When attaching the lens hood, hold the focus ring and zoom ring securely to prevent
them from turning.

• When the lens hood is not in use, it can also be turned around and attached in the
reversed position.

In order to avoid the deterioration in image quality from internal reflection, use of the lens
hood is recommended.

12

About the PL filter window

If a polarizing filter is attached to the DA lens, you can easily turn the filter via the PL filter
window on the bayonet-type hood.

How to use the lens hood with polarizing filter window

1. Remove the PL filter window cap by sliding it in the direction as shown above.

2. Turn the outer rim of the circular polarizing filter from the PL filter window as shown

above.

16

1

2

17

3. Attach the PL filter window cap.

✍

Memo:

• When shooting, be sure the PL filter window cap is in place to make that the lens hood
is being used to maximum effect.

3

FILTERS

18

Mount the filter into the screw thread in front of the lens.

✍

Memo:

• The compatible filter size for all the lenses are listed on pages 22-23.

Precaution on filters

• Since the filter becomes a part of the optics when attached on the lens, handle it in the
same way you handle the lens with care to dust, dirt and scratches. Normally, attaching
two or more filters on a lens is not recommended. However, attaching a circular polarizing
filter and another filter would not be a problem.

• Use a circular polarizing filter with Autofocus camera for proper exposure and
autofocusing.

19

Attaching the 30.5mm filter to the DA 40mm f/2.8 Limited lens

Normally, you attach the 49mm filter to the front of the lens. But as shown in the diagram,
you can also screw on a 30.5mm filter to the back of the dedicated hood.

About Using a Polarizing Filter

• If you attach an older type Pentax polarizing filter to the DA 16-45mm f/4 ED AL or DA
18-55mm f/3.5-5.6 AL lens, the dedicated hood cannot be attached over the filter. Also,
the hood might or might not be attachable if a non-Pentax polarizing filter is attached to
the lens.

• Do not attach an older type Pentax polarizing filter to the DA 14mm f/2.8 ED (IF). The filter
will cause vignetting. Instead, use the new Pentax polarizing filter which will not cause
vignetting.

PRECAUTIONS WHEN USING THE LENS WITH A FLASH

20

Built-in Flash

The built-in flash can not be used when the distance is less than 0.7m. When the flash is
used within 0.7m, it causes incorrect exposure control and vignetting in the picture corners.

• Refer to the “Compatibility of DA Lenses with the Built-in Flash” chart on page 18 for
information on the compatibility of the built-in flash with the lens being used. Furthermore,
please note that when using the -series camera, a warning indication does not
appear even when taking a picture with a built-in flash that is incompatible with the lens
being used.

• If the built-in flash is used with the lens hood attached to the lens, the flash light will be
blocked by the lens hood. Always make sure to remove the lens hood before using the
built-in flash.

External Flash

● DA 14mm f/2.8ED (IF)

The AF360FGZ external flash unit with the wide-angle panel only can be used, and the lens
hood can be attached as well. Other external flash units are not recommended to use
because their coverage angle is not compatible with the angle of view of the lens.

● DA 16-45mm f/4ED AL, DA18-55mm f/3.5-5.6 AL, DA 40mm f/2.8 Limited

When using the external flash unit, the vignetting will not occur with the lens hood attached
to the lens if the flash covers its angle up to 24 mm (equivalent in 35mm format).

For further details, refer to the operating manual for your external flash unit.

21

Compatibility of DA Lenses with the Built-in Flash

Lens

14mm f/2.8ED (IF) No

16-45mm f/4ED AL

18-55mm f/3.5-5.6 AL

40mm f/2.8 Limited

*

YES

YES

YES

*

Vignetting may occur at a focal distance less
than 28mm, and also may occur at a focal
distance 28mm when object distance is less
than 1m.

Compatibility Remarks

Lens DA 14mm f/2.8ED (IF) DA 16-45mm f/4ED AL DA18-55mm f/3.5-5.6 AL

Focal length

14 mm

(equivalent to

16-45 mm

(equivalent to

18-55 mm

(equivalent to

21.5mm in 35mm format) 24.5-69mm in 35mm format) 27.5 - 84mm in 35mm format)

Usable camera -series -series -series

Elements in groups

12–11 13–10 12–9

Angle of view 90° 83°–35° 76°–29°

Aperture f/2.8–f/22 f/4–f/22 f/3.5-f/5.6

Mount type K

AF-mount KAF-mount KAF-mount

Minimum focus

0.17m (0.56ft) 0.28m (0.92ft) 0.25m (0.82ft)

distance
Maximum

Approx. 0.19× Approx. 0.26× Approx. 0.34×

magnification

Filter size 77mm 67mm 52mm

Lens hood PH-RBH 77mm PH-RBL 67mm PH-RBA 52mm
Max. Diameter 83.5mm × 69mm 72mm × 92mm 68mm × 67.5mm

× Length (3.3in × 2.7in) (2.8in × 3.6in) (2.7in × 2.6in)

Weight

420

N/14.8oz 365N/12.9oz 225N/7.9oz

(with hood 455N/16oz) (with hood 390N/13.8oz) (with hood 250N/8.8oz)

Soft case S100-120 S90-140 S80-120

MAIN SPECIFICATIONS

22

23

Lens DA 40mm f/2.8 Limited

Focal length

40 mm

(equivalent to

61mm in 35mm format)

Usable camera -series

Elements in groups

5–4

Angle of view 39°

Aperture f/2.8–f/22

Mount type K

AF-mount

Minimum focus

0.4m (1.31ft)

distance
Maximum

Approx. 0.13×

magnification

Filter size 49mm or 30.5mm

Lens hood MH-RB 49mm
Max. Diameter 63mm × 15mm

× Length (2.5in × 0.6in)

Weight

90N/3.15oz
(with hood 100N/3.5oz)

Soft case Dedicated case

24

Memo :

25

For customers in USA

STATEMENT OF FCC COMPLIANCE

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions
: (1) This device may not cause harmful interference, and (2) this device must accept any interference
received, including interference that may cause undesired operation.
Changes or modifications not approved by the party responsible for compliance could void the user's
authority to operate the equipment.
This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection
against harmful interference in a residential installation. This equipment generates, uses and can
radiate radio frequency energy and, if not installed and used in accordance with the instructions, may
cause harmful interference to radio communications. However, there is no guarantee that interference
will not occur in a particular installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off and on, the user is
encouraged to try to correct the interference by one or more of the following measures :

• Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected.
*Consult the dealer or an experienced radio/TV technician for help.

For customers in Canada

This Class B digital apparatus meets all requirements of the Canadian Interference-Causing Equipment
Regulations.

Cet appareil numérique de la classe B respecte toutes les exigences du Réglement sur le matériel brouilleur du
Canada.

for your

precious moments

PENTAX

57298ENG Printed on recycled paper.

Copyright ©PENTAX Corporation 2004

05-200412 Printed in Japan

The CE Mark is a Directive conformity mark of the European Community.

PENTAX Corporation 2-36-9,Maeno-cho, Itabashi-ku, Tokyo 174-8639, JAPAN (http://www.pentax.co.jp/)
PENTAX Europe GmbH Julius-Vosseler-Strasse, 104, 22527 Hamburg, GERMANY

(European Headquarters) (HQ - http://www.pentaxeurope.com) (Germany - http://www.pentax.de)
PENTAX U.K. Limited PENTAX House, Heron Drive, Langley, Slough, Berks SL3 8PN, U.K. (http://www.pentax.co.uk)
PENTAX France S.A.S. 12/14, rue Jean Poulmarch, 95106 Argenteuil Cedex, FRANCE

PENTAX Benelux B.V. (for Netherlands) Spinveld 25, 4815 HR Breda, NETHERLANDS (http://www.pentax.nl)

(for Belgium & Luxembourg) Weiveldlaan 3-5, 1930 Zaventem, BELGIUM (http://www.pentax.be)

PENTAX (Schweiz) AG Widenholzstrasse 1 Postfach 367 8305 Dietlikon, SWITZERLAND (http://www.pentax.ch)
PENTAX Scandinavia AB P. O. Box 650, 75127 Uppsala, SWEDEN (http://www.pentax.se)
PENTAX Imaging Company

A Division of PENTAX of America, Inc.

(Headquarters)
600 12th Street, Suite 300 Golden, Colorado 80401, U.S.A.
(Distribution & Service Center)
16163 West 45th Drive, Unit H Golden, Colorado 80403, U.S.A.(http://www.pentaximaging.com)

PENTAX Canada Inc. 1770 Argentia Road Mississauga, Ontario L5N 3S7, CANADA (http://www.pentaxcanada.ca)