This is a cutting reducer for lessening the density of heavy negatives and at the same time increasing their contrast. It is especially valuable for reproduction films to clear the whites. Solution 1 Sodium Thiosulfate 240 g Water to make 1 L Solution 2 Ferricyanide 19 g Water to make 250 ml [...]
John
Richard Polt has collected a number of typewriter manuals from various sources, including this site. After an email discussion we decided it would be a good thing to duplicate these manuals just in case something goes wrong online. Here is the manual for the Brother Echelon 66 typewriter. BrotherEchelon66
This formula produces rich green tones by combining the effects of iron blue toning and sulfide sepai toning. It must, however, be employed carefully and with particular attention both to the directions outlined below and to cleanliness in handling prints throughtout all steps of the process. The formula is not adaptable to all types of [...]
Producing brilliant blue tones, this formula is suitable for use with Cykora, Brovira and Indiatone Papers. Hot Water (125F or 52C) 500 ml Ferric Ammonium Citrate 8 g Ferricyanide 8 g Acetic Acid (28%) 265 ml Water to make 1 L Solution should be prepared with distilled water if possible. If enameled iron [...]
Richard Polt has collected a number of typewriter manuals from various sources, including this site. After an email discussion we decided it would be a good thing to duplicate these manuals just in case something goes wrong online. Here is the manual for the Brother Charger 11 typewriter. BrotherCharger11
This formula gives a range of red tones to sepia-toned prints, the brilliance of the tone depending on the paper used. Brilliant chalk-red tones are produced on Cykon and India tone, while with Cykora darker shades are formed. If desired, deep blue tones may also be obtaned with this formula by using black-and-white prints instead [...]
Richard Polt has collected a number of typewriter manuals from various sources, including this site. After an email discussion we decided it would be a good thing to duplicate these manuals just in case something goes wrong online. Here is the manual for the Blue Bird Deluxe typewriter. BlueBirdDeLuxe_Manual
With this toner it is possible to obtain a variety of pleasing brown tones by varying the time of toning. Prints may be removed from teh bath when the desired color is reached. This formula is suitable for use with Cykora, Indiatone, Cykon and Convira. Solution 1 Hot Water (125F or 52C) 4 L [...]
