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04-07-2013, 10:18 AM   #1
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Join Date: Jan 2010
Location: Seattle
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Cokin P-sized 10-stop ND filter

Hi all,

For the past year or so I've been shooting my Very Long Exposures with the excellent B+W 10- and 6-stop screw-in ND filters. However, I've repeatedly found -- especially during the changing light of late evening -- that they become an obstacle to recomposing my shots, or using in quick conjunction with my Cokin P filter adapter.

Since I already have the adapter, I've been looking for rectangular 10-stop ND filters that fit Cokin's "P" size slots. I've heard the HiTech options are kind of meh, so I turned to Singh-Ray, which makes the excellent grad NDs I often use. Well, they had one, the "Mor-Slo", but it is a whopping 400USD in P size. Wow! Even the Lee Big Stopper is <150 when it's in stock, so this really shocked me.

Has anyone used the Mor-Slo? Or does anyone know of other (quality) options in Cokin P size?

04-07-2013, 03:00 PM   #2
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Join Date: Aug 2007
Location: Shropshire, UK
Posts: 1,114
The dark glass screens for welding masks fit the Cokin P holders, welding screens come in different strengths - for MIG or ARC welding - and they are good quality glass, they have to be because the welder is looking through them all day so they have to distortion free. I take the sharp corners off with an oilstone so they are safer to handle.
Exposure is by experimentation, but there is a lot of stuff on Flickr and other web sites about welding glass photography.

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