Pentax 17-70mm - 17-70mm f/4 DA SMC AL IF SDM Lens Operating Manual page 39

Lens
DA 200mm f/2.8ED [IF] SDM
DA 300mm f/4ED [IF] SDM
DA 12-24mm f/4ED AL [IF]*
DA 16-50mm f/2.8ED AL [IF]
SDM
DA 50-135mm f/2.8ED [IF]
SDM
DA 16-45mm f/4ED AL
DA 17-70mm f/4 AL [IF] SDM
Circular polarizing filter
(A type)
Compatibility
*Can be mounted and
used. However, the
dedicated bayonet hood
*YES
cannot be mounted on top
of the A type circular
polarizing filter.
*Vignetting occurs at focal
2
*YES
lengths below 15mm.
NO Vignetting occurs.
YES
*Can be mounted and
used. However, the
dedicated bayonet hood
*YES
cannot be mounted on top
of the A type circular
polarizing filter.
NO
Circular polarizing filter
Notes Compatibility
YES
*YES
YES
YES
YES
*YES
37 37
(B type)
Notes
*Vignetting occurs
at focal lengths
below 15mm.
Vignetting occurs
when the focal
length is 17mm.