Pentax smc -D FA MACRO 100mmF2.8 WR Operating Manual page 10

D FA macro 100mm.book Page 9 Friday, December 18, 2009 11:44 AM
Precautions When Using the Lens with a 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.
• 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.
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 autofocus camera for proper
exposure and autofocusing.
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