Re: cynotype negative

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Jean,

No. It is the light used to expose the cyanotype print you need to be concerned with not the light used to make the negative. In fact, all a blue filter on the camera would do would be to alter the way in which various colors are converted to a range of greys.

For cyanotype you want a fairly high-contrast, fairly dense negative i.e. one which would print well on silver-gel paper with a 0 contrast filter.

You might try useing two parts A to one part B. This will not be faster but will give you a greater tonal range.

 

Bob Schramm