----- Original Message ----- From: "P. J. Alling" Subject: Re: Pentax lens test on DIGITAL? All Pentax DSLR same imagaing?
There are recipes you can make at home from the raw materials. It used to be something of a cottage industry, back in the days when they taught basic chemistry in most schools...
I presume you are talking about B&W chemistry. Colour chemistry isn't so simple. William Robb
