Basic Photography Course

scratched. Only line copy types of negatives are usually
washed in a tray.

The most effective washing method in a tray is when

a siphon device is attached to the edge of the tray. The

device siphons water from the bottom of the tray, while
fresh water enters at the top (fig. 10-6). Because fixer is
heavier than water, it sinks to the bottom of the tray.

The best way to wash hand-processed sheet film

(especially more than one sheet at a time) is in a
sheet-film washing tank. Film hangers hold individual
negatives suspended separately in the tank. Fresh water
flows into the bottom of the tank and runs out around

the sides at or near the top of the tank (fig. 10-7). When
you place the film hangers into the tank, ensure the
negatives are separated, so sufficient fresh water reaches
all areas of each negative.

WARNING

Figure 10-7.Film washing tank

Figure 10-8.Rapid roll-film washer.

237.126

A rapid roll-film washer is excellent for washing

hand-processed roll film. It is a cylindrical tank, large
enough to hold several spiral reels. The washers come
in a variety of sizes that will wash from two 35mm reels
to as many as six or eight 120 reels (fig. 10-8).

Aboard ship, hoses attached to potable

water spigots can back siphon chemicals or
wash water from the trays or sink into the
drinking water supply. These hoses must have
a backflow preventer installed in the plumbing

The rapid roll-film washer is constructed so the

system.

wash water enters the tank at the base and flows up

10-13

contents

Basic Photography Course

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DOFMaster for Windows On-line Depth of Field Calculator DOFMaster for Mobile Devices On-line Depth of Field Table Hyperfocal Distance Chart Articles FAQ Recommended Books Support Contact Links Home As an Amazon Associate I earn from qualifying purchases.	contents <- previous page next page -> Figure 10-5.Film developing tanks. Figure 10-6.Washing film in trays. scratched. Only line copy types of negatives are usually washed in a tray. The most effective washing method in a tray is when a siphon device is attached to the edge of the tray. The device siphons water from the bottom of the tray, while fresh water enters at the top (fig. 10-6). Because fixer is heavier than water, it sinks to the bottom of the tray. The best way to wash hand-processed sheet film (especially more than one sheet at a time) is in a sheet-film washing tank. Film hangers hold individual negatives suspended separately in the tank. Fresh water flows into the bottom of the tank and runs out around the sides at or near the top of the tank (fig. 10-7). When you place the film hangers into the tank, ensure the negatives are separated, so sufficient fresh water reaches all areas of each negative. WARNING Figure 10-7.Film washing tank Figure 10-8.Rapid roll-film washer. 237.126 A rapid roll-film washer is excellent for washing hand-processed roll film. It is a cylindrical tank, large enough to hold several spiral reels. The washers come in a variety of sizes that will wash from two 35mm reels to as many as six or eight 120 reels (fig. 10-8). Aboard ship, hoses attached to potable water spigots can back siphon chemicals or wash water from the trays or sink into the drinking water supply. These hoses must have a backflow preventer installed in the plumbing The rapid roll-film washer is constructed so the system. wash water enters the tank at the base and flows up 10-13 contents Basic Photography Course <- previous page next page ->	As an Amazon Associate I earn from qualifying purchases.
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