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Neutral Density Filters


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#1 Damien Bhatti

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Posted 12 September 2008 - 10:13 AM

I need to get hold of a 1.5 ND filter for some tests. Does anyone know of a website that sells a 1.5? Or do I need to buy a 1.0 + 0.5 and combine?

I was hoping that kodak do a 1.5 to save costs? thanks,
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#2 Chris Keth

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Posted 12 September 2008 - 07:15 PM

You can get them. Tiffen makes up to an ND2.1 (7 stop)
Tiffen NDs at Filmtools
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#3 Damien Bhatti

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Posted 15 September 2008 - 07:27 AM

You can get them. Tiffen makes up to an ND2.1 (7 stop)
Tiffen NDs at Filmtools


Thanks Chris, i have found a company in the uk who make the gelatine kind,

Gelatine nd filters

I talked to the guys on the phone, and was just wanting to make sure that the measurements of ND filters are from its density? Ie a 0.3 density nd filter, = 1 stop.

Are the density measurements 0.3,0.6,0.9 - are these a standard between companies or does the light loss vary with each manufacturer?
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#4 Mike Simpson

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Posted 15 September 2008 - 01:11 PM

They are standard. 0.3 is one stop (although generally it will be spoken as "ND 3.").
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