Basic Photography Course

Figure 10-14.Reel processing rack.

with a film clip. Dry the hangers, after washing them in
hot water, without film in them.

With suitable racks designed to hold reels, roll film

can also be processed in tanks (fig. 10-14).

TANK DEVELOPING ROLL FILM

have formed. Start the timer and agitate the film for 1

minute. After the first minute of development, agitate
for 5 seconds at l-minute intervals.

The most convenient and reliable way to hand

process roll film is in a small roll-film tank. The
construction of tanks and reels differ somewhat among

The processing tank usually has enough space for

several additional hangers. However, this space is
needed for proper agitation of the film hangers.
Agitation should be accomplished by lifting the hangers
out of the tank draining them momentarily from a

the various manufacturers' models, resulting in

10-21

differences in loading and use. Generally, the basic unit
used in Navy imaging facilities consists of a stainless

different comer each time, and replacing them in the
solution (fig. 10-13). Hangers should not be agitated too
vigorously from side to side. This forces the developer
through the holes in the hangers at high speed, causing
developing trails near the holes. The objective is to
assure an even flow of fresh solution over the surfaces
of the films regularly according to a fixed schedule.

About 10 seconds before completion of the

developing time, lift each of the hangers out of the
solution, let them drain for 10 seconds, then lower them
into the stop bath. Agitate them several times in the stop
bath, drain them, lower them into the fixing bath, and
agitate them constantly for 2 or 3 minutes.

The fixing and the washing requirements are the

same as described previously in this chapter. When
washing is complete, place the film hangers and film
into a wetting agent; then remove each sheet from its
hanger and hang it up by one corner to dry.

When the film is dried in the hangers, there is a

number of drying marks along the edges of the film, thus
reducing the actual usable size of the negative image. It
is better to suspend each film individually from a line

rewound, you do not have to open the cassette to remove
the film. The leader or loading tab on 35mm film can be
cut off square while in the light to ease loading of the

spiral reel (fig. 10-15).

Figure 10-15.Cutting leader tab film 35mm film.

steel, center feed, spiraled reel to hold the film; a tank
with a lighttight cover; and a filler cap. Each reel is
constructed for a specific size roll of film; for example,
35mm, 120, and 220. The tank top permits pouring the
chemicals in and out of the tank under white light
conditions. The tanks come in sizes to hold from one

35mm reel to as many as eight 35mm reels or five 120

reels. Small roll-film tanks of all metal construction
(tanks, lids, caps) should be numbered or marked in such

a way that prevents mixing different tanks, lids, and

caps.

The proper loading of a film reel in total darkness

can be the most important steps and challenges in
processing roll film.

When processing roll film with a paper backing, the

paper tape sealing the exposed roll should not be broken
until the lights have been turned out. Also, for 35mm
film, the cassette should not be opened until the lights
have been turned out. If a short length of film is left
protruding from the 35mm cassette when the film is

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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 10-14.Reel processing rack. with a film clip. Dry the hangers, after washing them in hot water, without film in them. With suitable racks designed to hold reels, roll film can also be processed in tanks (fig. 10-14). TANK DEVELOPING ROLL FILM have formed. Start the timer and agitate the film for 1 minute. After the first minute of development, agitate for 5 seconds at l-minute intervals. The most convenient and reliable way to hand process roll film is in a small roll-film tank. The construction of tanks and reels differ somewhat among The processing tank usually has enough space for several additional hangers. However, this space is needed for proper agitation of the film hangers. Agitation should be accomplished by lifting the hangers out of the tank draining them momentarily from a the various manufacturers' models, resulting in 10-21 differences in loading and use. Generally, the basic unit used in Navy imaging facilities consists of a stainless different comer each time, and replacing them in the solution (fig. 10-13). Hangers should not be agitated too vigorously from side to side. This forces the developer through the holes in the hangers at high speed, causing developing trails near the holes. The objective is to assure an even flow of fresh solution over the surfaces of the films regularly according to a fixed schedule. About 10 seconds before completion of the developing time, lift each of the hangers out of the solution, let them drain for 10 seconds, then lower them into the stop bath. Agitate them several times in the stop bath, drain them, lower them into the fixing bath, and agitate them constantly for 2 or 3 minutes. The fixing and the washing requirements are the same as described previously in this chapter. When washing is complete, place the film hangers and film into a wetting agent; then remove each sheet from its hanger and hang it up by one corner to dry. When the film is dried in the hangers, there is a number of drying marks along the edges of the film, thus reducing the actual usable size of the negative image. It is better to suspend each film individually from a line rewound, you do not have to open the cassette to remove the film. The leader or loading tab on 35mm film can be cut off square while in the light to ease loading of the spiral reel (fig. 10-15). Figure 10-15.Cutting leader tab film 35mm film. steel, center feed, spiraled reel to hold the film; a tank with a lighttight cover; and a filler cap. Each reel is constructed for a specific size roll of film; for example, 35mm, 120, and 220. The tank top permits pouring the chemicals in and out of the tank under white light conditions. The tanks come in sizes to hold from one 35mm reel to as many as eight 35mm reels or five 120 reels. Small roll-film tanks of all metal construction (tanks, lids, caps) should be numbered or marked in such a way that prevents mixing different tanks, lids, and caps. The proper loading of a film reel in total darkness can be the most important steps and challenges in processing roll film. When processing roll film with a paper backing, the paper tape sealing the exposed roll should not be broken until the lights have been turned out. Also, for 35mm film, the cassette should not be opened until the lights have been turned out. If a short length of film is left protruding from the 35mm cassette when the film is contents Basic Photography Course <- previous page next page ->	As an Amazon Associate I earn from qualifying purchases.
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