Pentax 21650, 21717, 21740, 21580, 21660, 21760, 21507 manual Sdm

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