ajuk Member Allowing Ads Joined Jul 27, 2005 Messages 1,110 Format 35mm Aug 5, 2010 #1 Is it possible to get a purple filter for B&W I can't seem to find one.
Jeff Kubach Member Allowing Ads Joined Sep 29, 2007 Messages 6,912 Location Richmond VA. Format Multi Format Aug 5, 2010 #2 I never heard of one myself, if there is one what is it used for? Jeff
Pinholemaster Member Allowing Ads Joined Oct 17, 2005 Messages 1,566 Location Westminster, Format 8x10 Format Aug 5, 2010 #3 http://en.wikipedia.org/wiki/Wratten_number But why?
CBG Member Allowing Ads Joined Nov 21, 2004 Messages 889 Format Multi Format Aug 5, 2010 #4 A magenta or purple filter is just be one more contrast filter for BW. Not very widely used but no reason it could not be deployed.
A magenta or purple filter is just be one more contrast filter for BW. Not very widely used but no reason it could not be deployed.
Nicholas Lindan Advertiser Advertiser Joined Sep 2, 2006 Messages 4,331 Location Cleveland, Ohio Format Multi Format Aug 5, 2010 #5 Get hold of a 3x5" Rosco swatch book and a 3x3" gel holder: http://www.bhphotovideo.com/c/product/45190-REG/Rosco_8815_Roscolux_Designer_Color_Selector.html The Rosco filters are good optical quality and the filter book includes the transmittance curve for each filter.
Get hold of a 3x5" Rosco swatch book and a 3x3" gel holder: http://www.bhphotovideo.com/c/product/45190-REG/Rosco_8815_Roscolux_Designer_Color_Selector.html The Rosco filters are good optical quality and the filter book includes the transmittance curve for each filter.
tomalophicon Member Allowing Ads Joined Feb 7, 2010 Messages 1,568 Location Canberra, AC Format Sub 35mm Aug 5, 2010 #6 Pinholemaster said: http://en.wikipedia.org/wiki/Wratten_number But why? Click to expand... Used for minus-green and plus-blue separation.
Pinholemaster said: http://en.wikipedia.org/wiki/Wratten_number But why? Click to expand... Used for minus-green and plus-blue separation.
OP OP ajuk Member Allowing Ads Joined Jul 27, 2005 Messages 1,110 Format 35mm Aug 30, 2010 #7 I thought it might be handy for some night traffic trail photography.
fotch Member Allowing Ads Joined Mar 16, 2005 Messages 4,774 Location SE WI- USA Format Multi Format Aug 30, 2010 #8 I think I have some Cokin that are labeled purple or violet, don't remember which. Maybe both.
Sirius Glass Subscriber Joined Jan 18, 2007 Messages 50,933 Location Southern California Format Multi Format Aug 30, 2010 #9 Violet covers a set of wavelengths while purple is a combination of colors that occurs on or near the line of purple.
Violet covers a set of wavelengths while purple is a combination of colors that occurs on or near the line of purple.