Center filter for Nikon 150

[dhirsch]

Using a Nikon Nikkor-SW 150mm f:8 on 8x10 I noticed a center filter is pretty much mandatory.
Did any of you had any experience with this lens and knows what filter might work, and whether it's still available ?

Any help is appreciated.

[Bob Salomon]

Nikon never made one but a Heliopan should work, as long as the lens has a filter size that the Heliopan CF is available in.

[JiJo]

Nikon never made one but a Heliopan should work, as long as the lens has a filter size that the Heliopan CF is available in.

I'm think this filter might work - B+W 95mm slim filter.