Pentax 17-70mm - 17-70mm f/4 DA SMC AL IF SDM Lens Operating Manual page 41

*1 The lens hood cannot be mounted on some circular polarizing filters that are not produced by
PENTAX.
*2 Vignetting occurs at focal lengths below 15mm with other PENTAX filters (such as the
Skylight) besides circular polarizing filters.
*3 The dedicated hood cannot be mounted if a filter including a circular polarizing filter is
mounted on the front of the lens.
Memo:
• Filters, including circular polarizing filters, cannot be mounted on the DA FISH-EYE
10-17mm f/3.5-4.5ED [IF] lens.
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