Basic Photography Course

237.137

Figure 10-11.Sheet film hangers arranged for tank processing.

8. When the timer rings, remove all the films from

the developer in the same order that they were placed in
the developer, and submerge them in the stop bath. Your
right hand should go into the stop bath with the first film
and stay there to handle each film as it is transferred from
the developer by your left hand. Use your left hand only
for transferring the film to avoid contamination of the
developer or spotting of the film. A few drops of
developer will not affect the stop bath or the fixing bath,
but a few drops of either of these solutions could rum a
developing solution.

9. After all the films have been shifted several

times in the stop bath, they should be transferred
individually to the fixing bath or hypo. Shift the films
several times in the fixing bath, agitating them
vigorously. Then safelights or the white lights may be
turned on. Continue shifting the films until they lose the
cloudy or creamy appearance. You must shift the films
several times during the second half of the fixing time,
but continuous agitation is not necessary.

10. After fixing is completed, transfer the

negatives to the wash water and continue agitation
unless a regular film washing tank or tray is used. The
negatives also may be put in regular film hangers for
washing.

11. Treat the film in a wetting agent and dry it.

TANK DEVELOPING SHEET FILM

Tank development is the recommended method for

hand processing of orthochromatic and panchromatic
sheet film. The solutions and the tanks are deep enough
to cover the films in the vertical position completely. The
films are supported individually in the tanks by the film

hangers. Films supported in this way are much less

subject to damage. The solutions last longer when used

in tanks and can process more films than when they are

used in trays.

Tank development for sheet film requires tanks to

hold the solutions, and racks, reels, or hangers to support
the films while in the solutions. The solutions used
should have good-keeping qualities, and they should be
the type that can be replenished by adding fresh solution
or replenisher, so the volume in the tanks can be
maintained at the proper working level.

The minimum number of tanks that can be used is

three: one each for developer, stop, and fixing bath.
However, when a predevelopment rinse is used, four
tanks are needed.

The tanks are arranged in the processing sink

submerged in enough water to maintain the solutions at
the prescribed processing temperature. Again the

process is arranged so you work from the left to right.

10-18

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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 -> 237.137 Figure 10-11.Sheet film hangers arranged for tank processing. 8. When the timer rings, remove all the films from the developer in the same order that they were placed in the developer, and submerge them in the stop bath. Your right hand should go into the stop bath with the first film and stay there to handle each film as it is transferred from the developer by your left hand. Use your left hand only for transferring the film to avoid contamination of the developer or spotting of the film. A few drops of developer will not affect the stop bath or the fixing bath, but a few drops of either of these solutions could rum a developing solution. 9. After all the films have been shifted several times in the stop bath, they should be transferred individually to the fixing bath or hypo. Shift the films several times in the fixing bath, agitating them vigorously. Then safelights or the white lights may be turned on. Continue shifting the films until they lose the cloudy or creamy appearance. You must shift the films several times during the second half of the fixing time, but continuous agitation is not necessary. 10. After fixing is completed, transfer the negatives to the wash water and continue agitation unless a regular film washing tank or tray is used. The negatives also may be put in regular film hangers for washing. 11. Treat the film in a wetting agent and dry it. TANK DEVELOPING SHEET FILM Tank development is the recommended method for hand processing of orthochromatic and panchromatic sheet film. The solutions and the tanks are deep enough to cover the films in the vertical position completely. The films are supported individually in the tanks by the film hangers. Films supported in this way are much less subject to damage. The solutions last longer when used in tanks and can process more films than when they are used in trays. Tank development for sheet film requires tanks to hold the solutions, and racks, reels, or hangers to support the films while in the solutions. The solutions used should have good-keeping qualities, and they should be the type that can be replenished by adding fresh solution or replenisher, so the volume in the tanks can be maintained at the proper working level. The minimum number of tanks that can be used is three: one each for developer, stop, and fixing bath. However, when a predevelopment rinse is used, four tanks are needed. The tanks are arranged in the processing sink submerged in enough water to maintain the solutions at the prescribed processing temperature. Again the process is arranged so you work from the left to right. 10-18 contents Basic Photography Course <- previous page next page ->	As an Amazon Associate I earn from qualifying purchases.
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