Formulary Iron Blue Toner Powder - 1 Liter Black and White Photographic Paper The included Li-Ion battery simply

The included Li-Ion battery simply snaps into place on the back of the unit and will provide about 1-1/2 hours of running time

The bottom surface of the pattern plate and the basement surface of the focuser are adjusted so that they will be in positions accurately symmetrical to the mirror

without ever having to change lenses or your shooting position

Each kit ships flat and includes:

Designed for years of service without the bulk of some other diffusers

Formulary Iron Blue Toner Powder - 1 Liter Black and White Photographic Paper The included Li-Ion battery simplyAn inexpensive and effective blue toner similar to Ansco Toner 241. It is often used on snow scenes and seascapes. Prints are toned in a single solution of ferric ammonium citrate and potassium ferricyanide until they appear green. After washing they turn a clear blue color. The tones can be softened in a borax bath. Features Similar to Ansco Toner 241 Clear blue color tone technical Formulary Iron Blue Toner Tech msds Formulary Iron Blue Toner