Archived posting to the Leica Users Group, 1997/07/10
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]I don't know about Zone VI products in Europe but a Panchromatic viewing filter can easily be found in any cinema equipment supply house. They are quite commonly available in motion picture circles. Happy snaps, Steven - ---------- > From: Bob Parsons <bobp@dodo.demon.co.uk> > To: leica-users@mejac.palo-alto.ca.us > Subject: Re: where to get Zone VI Products in Europe > Date: Wednesday, July 09, 1997 8:04 PM > > Martin asked: > >I know that Zone VI sell a kind of filter you can look through by eye (not for > >the camera) to get an impression about the transformation of the colours > >to black and white. > >Where can I get such a filter in Switzerland, Germany, England, ... Europe. > > > >Thanks > > snip. > > Martin, > The type of filter you ask about is known as a Panchromatic > Viewing Filter. They are best described as a dirty brown colour, and > tend to suppress the visual colours in a scene which allows you to judge > the distribution of light and dark elements. The filter is available as a > Kodak Wratten filter number 90. You should be able to order one from any > good photographic shop in Switzerland. The one I have is 75mm square, but > you can get larger ones. The only problem with the Wratten filters is they > are varnished, dyed gelatin, on an acetate base (I think) and are easily > marked. Mount it in a card holder or between two sheets of clear acetate > foil or something similar to protect it. > > I've seen adverts for glass or plastic ones which are more robust, but I > can't remember where. > > I found that after a few seconds the eye/brain combination is good at > compensating for the effect of the filter so the first one or two seconds > of viewing is what counts. > > I bought mine in the UK from Silverprint Ltd, 12 Valentine Place, London > SE1 8QH, Tel. +44 171 620 0844, fax. +44 171 620 0129. It's listed in > their catalog as Kodak Wratten Filter, Mono Viewing 90, 75x75mm, 12.67 UKP. > They will accept orders from abroad, their price list says they have a > minimum order of 25 UKP though :( > > Regards, Bob Parsons bobp@dodo.demon.co.uk >