Pentax smc PENTAX-DA User manual

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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
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
~CAUTION
LhwARNING
This symbol indicates precautions that if not followed,
could result in serious injuries to the user.
This symbol indicates precautions that if not followed,
could result in minor or medium injuries to the user or
damage to the equipment.
• 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.
LhcAUTION
• 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.

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 asthinner, 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 orsimilar 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 orother 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.

' ' ....
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 K 10 D .................................................... ............. ................... . .............. .... 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 Fo cus 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
21 mm f/3.2 AL Limited dedicated lens hood) ........ .. ............28
About the PL filter window ..................................................................
.. ....... .. .... 29
Built-in lens hood .
.. ........................... .... . .. . .. . ... ............. .. ................. .. ................. 31
FILTEAS .................................................................................................................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
21 mm 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

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.

Focusing ring
Distance scale
window
Depth-of-field scale
Mounting index
Note:
smc
PENTAX-DA LENS
Lens hood
attaching index
Distance scale
Depth-of-field scale
Distance index
• 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
contacts
Lens information
contacts
Power supply contacts
Lens information
contacts
Power supply contacts
Lenses with a supersonic motor Lenses with asupersonic 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 mountsurfaces 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
K-x,
K-7,
K-ml
K2000,
K20D,
K200D,
KlOD*,
KlOOD
Super
*
If the firmware is version 1.30
or
later, refer to page 11.
DA*
55mm
f/1.4 SDM
DA17-70mm f/4 AL [IF] SDM
DA*
60-250mm
f/4ED [IF]
SDM
DA*
16-50mm f/2.8ED
AL
[IF]
SDM
DA*
50-135mm
f/2.8ED [IF]
SDM
DA*
200mm
f/2.8ED [IF]
SDM
DA*
300mm
f/4ED [IF]
SDM
•
The
lens uses a supersonic motor.
When
the lens
is mounted
on
a camera
body
that
does
not
support supersonic motors (including the
KlOD
with firmware older than version 1.30),
the autofocus cannot be operated
by
either
the
AF
motor
in the camera
body
or
the
supersonic
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.
KlOD,
KlOOD
Super
,
K20D,
K200D
When
the lens is mounted on a
camera
body
that
does
not support supersonic motors (including the
KlOD
with firmware older than version 1.30), the
autofocus is operated by the AF
motor
in
the
camera
body.
*
In both cases focusing can
be
done
manually.

Precautions
for
using
lenses equipped with a
supersonic
motor
on the
K10D
When using lenses equipped with a supersonic motor on the
K10D,
use camera
firmware version 1.30
or
later.
• How
to
Check
and
Update the Firmware
Holding-down the MENU button while turning ON the
K10D
will display the firmware
version in the center
of
the display.
Download and install the firmware update for the
KlOD
using the link below.
• Firmware
Download
Page:
http://www.pentax.jp/english/support/download_digital.html

MOUNTING AND REMOVING THE LENS
2
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.

Take off the lens cap by pressing the two tabs inward.
£S Memo:
• When not using the lens, be sure to attach the lens cap.
• Attach the dedicated lens cap overthe lens hood on the DA
21 mm 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 21 mm 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.

cJ
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.

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.
smc
NTAX
DA*

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Using
Autofocus
Set the focus mode to autofocus. Press the shutter release button halfway to autofocus.
With the
K-x,
K-7,
K20D,
KlOD,
•WD
or
K-m
I
K2000
cameras, you can also
press the
AF
button
or
AF/AE-L
button to autofocus.
See page 15 for information about changing the focus mode.
Focusing
with
the
OK
Button
With the
K200D,
KlOOD
Super
,
K110D,
KlOOD
,
•WDL2,
•LdDs2,
•WDL
,
and
-~Ds
,
you can configure the camera's custom settings to disable
autofocusing when pressing the shutter release button halfway and enable focusing by
pressing the OK button.
~Memo:
• For details on the setting procedure, refer to the camera operating manual.

CAUTION
During autofocusing, the focusing ring of the following lenses will rotate.
• To prevent malfunction, do not touch the focusing ring during autofocusing.
Particularly be careful when the Focus Mode
is set to AF.C (AF-continuous). The
camera continues
adjusting the focus while the AF button is pressed or the
shutter release button is pressed halfway.
- DA FISH-EYE 10-17mm f/3.5-4.5ED [IF] -DA 12-24mm f/ 4ED AL [IF]
-
DA 16-45mm f/4ED AL -DA 17-?0mm f/4 AL [IF] SDM
R DA 18 .. 55mm f/3.5-5.6 AL WR .. DA L 18 .. 55mm f/3.5-5.6 AL
-DA 50-200mm f/4-5.6ED WR - DA L 50-200mm f/4-5.6ED
-DA 55-300mm f/4-5.8ED -DA 15mm f/
4ED AL Limited
-DA
21 mm f/3.2 AL Limited -DA 35mm f/2.8 Macro Limited
-DA 40mm f/2.8 Limited -DA 70mm f/2.4 Limited

. ·· .
.. . .
...
Using Manual Focus
; . :' .
·· ··... ·.
·. : ..
.. ·. ,-. . .
. . . . .
.. .
Set the focus mode to MF, and turn the focusing ring to focus manually.
See page 15 for information about changing the focus mode.
Using the Quick-Shift Focus System
3 -. ;•
::-·,
If the focus mode is set to autofocus, you can focus manually after autofocus is achieved.
Manually
turn the focusing ring to finely adjust the focus. You can do this without changing
the focus
mode to MF.
The Quick Shift Focus System is not available with the following lenses.
I -DA L 18-55mm f/3.5-5.6 AL -DA L 50-200mm f/4-5.6ED