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5

„

About the Lens Mount

The D FA lens mount is called 
the “K

AF

 - mount”. This lens mount 

enables autofocus and 
autoexposure.

„

About the Lens Hood

Using a lens hood is recommended to block stray light from entering 
the lens. 
The internal reflection of stray light degrades image quality.

<How to attach>

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, as viewed from the front of the lens, 
to lock it until it clicks into position.
* When the lens hood is not in use, it can also be turned 

around and attached in the reversed position.

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.

AF coupler

K

AF

-mount

Lens 
information 
contacts

D FA macro 100mm.book  Page 5  Friday, December 18, 2009  11:44 AM

Summary of Contents for smc Pentax-D FA Macro 100mm f/2.8

Page 1: ...ease 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 Illustrations shown herein may differ from the actual appearance PENTAX and smc PENTAX are trademarks of HOYA CORPORATION Specifications and external dimensions are subject to change without notice Refer to your camera operating manual for detail...

Page 2: ...y through the lens 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 FOR SAFE USE OF YOUR LENS 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 ...

Page 3: ...strument 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 Avoid subjecting the lens to rapid changes in temperature otherwise condensation can occur on both inside and outside of the lens Put the lens in a plastic bag or camera bag and take it out after the lens h...

Page 4: ...y points perfectly round Main Specifications Focal length 100mm equivalent to approx 153mm in 35mm format Elements in groups 9 8 Angle of view 16 when attached to PENTAX digital SLR cameras 24 5 when attached to PENTAX 35mm SLR cameras Aperture f 2 8 Minimum aperture f 32 Mount type KAF mount Minimum focus distance 0 303m 0 99ft 0 130m 0 45ft working distance Maximum magnification 1 Filter size 49...

Page 5: ...auto A position so cameras and accessories without an auto A setting cannot be used with this lens 1 Lens hood attaching index 2 Focusing ring 3 Distance scale 4 Depth of field scale 5 Mounting index 6 Lens mount 7 Front ring threads 8 Lens hood 2 3 4 5 6 8 1 7 D FA macro 100mm book Page 4 Friday December 18 2009 11 44 AM ...

Page 6: ...h both parts straight toward each other Attach the lens hood on the lens by turning the hood in the clockwise direction as viewed from the front of the lens to lock it until it clicks into position When the lens hood is not in use it can also be turned around and attached in the reversed position CAUTION Be careful not to damage or dirty the lens information contacts and AF coupler on the mount su...

Page 7: ...ators above the distance scale For example 1 indicates 1 1x and 5 indicates 1 5x If you want to set the magnification first turn the focusing ring to set the desired magnification in the manual focus mode Then focus the subject by moving the camera forward or back D FA macro 100mm book Page 6 Friday December 18 2009 11 44 AM ...

Page 8: ...t the camera s focus mode to MF and turn the focusing ring to focus manually Using the Quick Shift Focus System If using the lens with PENTAX digital SLR cameras you can focus manually after autofocus is performed Just turn the focusing ring to manually touchup the focus You can do this without switching the focus mode to MF How to take pictures 1 Using Autofocus 2 Hold down the shutter release bu...

Page 9: ...f the shutter release button before taking the picture autofocus will operate again when you press the shutter release button again During autofocusing the focusing ring will rotate Do not touch the focusing ring while autofocus is operating as it may cause a malfunction D FA macro 100mm book Page 8 Friday December 18 2009 11 44 AM ...

Page 10: ... flash light will be blocked by the lens hood Always make sure to remove the lens hood before using the built in flash Filters Screw the commercial 49mm diameter filter to the front of the lens Since a filter becomes a part of the optical system when attached to the lens handle it in the same way you handle the lens with care to dust dirt and scratches Use a circular polarizing filter with an auto...

Page 11: ...nd 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 ...

Page 12: ...36 8299 PENTAX France S A S 112 Quai de Bezons BP 204 95106 Argenteuil Cedex FRANCE http www pentax fr Hotline 0826 103 163 0 15 la minute Fax 01 30 25 75 76 Email http www pentax fr _fr photo contact php photo contact PENTAX Imaging Company A Division of PENTAX of America Inc Headquarters 600 12th Street Suite 300 Golden Colorado 80401 U S A PENTAX Service Department 250 North 54th Street Chandle...

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