Pentax DA - About the PL Filter Window

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About the PL filter window
The DA16-45 mm f/4ED AL lens hood is designed for use with a circular polarizing filter,
and includes a "PL filter window" for adjusting the polarization effect.
How to use the lens hood with polarizing filter window
1. Remove the PL filter window cap by sliding it in the direction shown.
2. Turn the outer rim of the circular polarizing filter from the PL filter window as shown.
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DAE_BodyA 12/2/03 3:44 PM Page 12