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Note: Using a Circular Polarizing
Filter
* In the case of the FA 77mm f/1.8
Limited lens, attaching certain dis-
continued circular polarizing filters
(including the PENTAX Type-A
Circular Polarizing Filter) prevents
the built-in hood from being pulled
out.
* With an autofocus camera, use a
circular polarizing filter instead of
a polarizing filter. A polarizing filter
affects the accuracy of the autofo-
cus and exposure.
Note: Attaching a Specialized Hood
If the PENTAX Type-A Circular Polarizing
Filter (discontinued) is attached to the
FA 28-105mm f/3.2-4.5AL (IF) lens,
you cannot attach the specialized lens
hood since it hits the filter's outer edge.
Also, attaching a non-PENTAX circular
polarizing filter may still prevent the
specialized hood from being attached.
PENTAX Circular Polarizing Filters
(Both discontinued)
* Type A is thicker than Type B.
Type A Type B