ILFORD DELTA 400专业黑白专业电影说明说明书

2024-07-28 作者:

TECHNICAL INFORMATION

HARMAN technology Limited

DELTA 400

PROFESSIONAL

ISO 400/27º, FINE GRAIN, BLACK AND WHITE

PROFESSIONAL FILM FOR SUPERB PRINT QUALITY

ILFORD DELTA 400 Professional is a fast, fine grain, black and white professional film. It is ideal for action

and available light photography and also gives fine grain results for pictorial and fine art photography. DELTA

400 Professional film gives excellent performance in seasoned developers.

Although rated at ISO 400/27º, DELTA 400 Professional film can produce high quality prints when exposed at

meter settings up to EI 3200/36 and given extended development in ILFORD ILFOTEC DD-X, ILFOTEC HC,

MICROPHEN or ILFOTEC RT RAPID developers.

DELTA 400 Professional 35mm film is coated on 0.125mm/5-mil acetate base and is available in 24 or 36

exposure cassettes, or in bulk lengths of 30.5 metres (100ft). DELTA 400 Professional 35mm film is supplied in

DX coded cassettes, suitable for all 35mm cameras.

DELTA 400 Professional roll film is coated on 0.110mm/4-mil clear acetate base with an anti-halation backing

which clears during development. It is available in 120 lengths and is edge numbered 1 to 19.

EXPOSURE RATING

DELTA 400 Professional has a speed rating of ISO 400/27° to daylight. The ISO speed rating was measured

using ILFORD ID-11 developer at 20°C/68°F with intermittent agitation in a spiral tank.

Best results will be obtained at normal contrast, but good image quality will also be obtained at meter settings

from EI 200/24 to EI 3200/36. It should be noted that the exposure index (EI) range recommended for DELTA

400 Professional is based on a practical evaluation of film speed and is not based on foot speed, as is the ISO

standard.

SPECTRAL SENSITIVITY

Wedge spectrogram to tungsten light (2850K)

Page 1 of 7 Nov2018

DELTA 400 PROFESSIONAL Technical Information

FILTER FACTORS

DELTA 400 Professional film may be used with all types of filters (eg colour, polarising and neutral density filters) in the usual way. Follow the instructions given by the filter manufacturer.

The exposure increase in daylight may vary with the angle of the sun and the time of day. In the late afternoon

or the winter months, when daylight contains more red light, green and blue filters may need slightly more exposure than usual.

Cameras with through-the-lens metering will usually adjust the exposure automatically when using filters. With

some automatic exposure cameras, the correction given for deep red and orange filters can produce negatives

under exposed by as much as 1½ stops.

MAKING LONG EXPOSURES

For exposures between ½ and 1/10 000 second, no

adjustments are needed for reciprocity law failure.

When exposures longer than ½ second are given,

DELTA 400 Professional, along with other films, needs to

be given more exposure than indicated by a meter. Use

the graph to calculate the increased exposure time which

should be given once the metered time is known.

The graph is based on the formulae Ta = Tm1.41

Ta = Adjusted Time

Tm = Metered Time

CHOOSING THE BEST ILFORD DEVELOPER FOR THE JOBManual processing Spiral tank, dish/tray, deep tank

Including rotary processors

Liquid

Best overall image ILFOTEC DD-X

quality

Finest grain ILFOTEC DD-X

Finest grain (EI 200/24) ILFOTEC DD-X

Maximum sharpness ILFOSOL 3 (1+9)Maximum film speed ILFOTEC DD-X

(EI 3200/36)

Economy ILFOTEC LC29 (1+29)One-shot convenience

Replenishable

Machine Processing

Dip and dunk

Short leader

Roller transport

Page 2 of 7

ILFOSOL S (1+14)ILFOTEC LC29 (1+29)

ILFOTEC DD-X Powder

ID-11 (stock) ID-11 (stock)

PERCEPTOL (stock)

ID-11 (1+3)

MICROPHEN (stock) ID-11 (1+3)

MICROPHEN (1+3) ID-11 (1+3)

MICROPHEN (1+3) ID-11

ILFOTEC DD

ILFOTEC RT RAPIDILFOTEC RT RAPID

Best overall image quality and long tank life

Rapid processing, best overall image quality andlong tank life. Rapid processing

Nov2018

DELTA 400 PROFESSIONAL Technical Information

DEVELOPMENT TIMES

The table below gives development times for both manual and machine processing DELTA 400 Professional.

The times in bold will produce negatives of normal contrast (Gbar 0.62). The development times are intended as a guide and may be altered if a different result is needed.

For manual processing in spiral tanks and deep tanks, the development times are based on intermittent

agitation. Where continuous agitation is used for manual processing (as in a dish/tray or with some types of

developing tank), reduce these times by up to 15%. For use in rotary processors without a pre-rinse, reduce the

development times by up to15%. A pre-rinse is not recommended as it can lead to uneven processing.

ILFORD developer

Dilution

35mm and Roll Film - 20°C/68°F

Meter setting (EI)

200/24 250/25 320/26 400/27 500/28 800/30 1600/33 3200/36

Spiral tank, deep tank, dip and dunk machines (min/20°C/68°F)

ILFOTEC DD-X

ILFOSOL 3

ILFOTEC HC

ILFOTEC HC

ILFOTEC LC29

ID-11

MICROPHEN

PERCEPTOL

1+4 6 −

1+9 5½ −

1+14 8 −

−

1+15

−

− 1+31 5

− − 1+9

−

1+19

5

1+29 8½

−

−

stock 7

1+1 10

−

1+3 18

−

−

stock 5

1+1 8½

−

1+3 16 −

stock 10 121+1 12½

−

1+3 18½ −

−

−−4

−

4−−−−−−−−−15½−

8

712−

7½

−7½11½9½14−6½11½−−−−

10½ 13½ 18 9½

−−

−14

20½

−− −

−

5½ 7½ 13

− 10 13½ −

− 5½

7½

13−−10 13½

17 − −−

−11½ 14½ 19

17½

−− −

−− − −7½8½ 10½

1413½15½ 19 −−− − −−− −

−−− − −−− − −

Non-ILFORD Developers (min/20°C/68°F)

− −

Acufine stock 7 9 13 16 − 11

− −−− −

−Agfa Rodinal

1+25 6 9

1+50 11½

−

20 −−− − −

− −−9½11½ 14½ 19Kodak D-76 stock 7

1+1 10

−

1417½

−−− −1+3 18

−

−−

−−− −

− − − −

Kodak HC-110 A 5½ 7½ 13 4

− −

B 5 − 10 13½ −

7½

−

Kodak T-Max 1+4 5

−

6½ 7 8½ 10½ 13½

− −101213½ 17

20Tetenal Ultrafin SF

Stock 8

1+1 14

−

19 −−− − −

Tetenal Ultrafin

− −

1+4 6 7½ 12 16½ − 10

Plus

− −

Kodak Xtol stock 7½ 10 13 17 6

8½

− −

1+1 11½ 15½ 20 − 9 13

Note. Development times may need adjusting to suit individual processing systems and working practices. If an

established system is producing good results, adjust the recommended development times until the desired

contrast level is obtained. Development times in other manufacturers’ developers are included for your

convenience and are only a general guide. Other manufacturers can and do change their product

specifications from time to time, and the development times may change as a result.

Page 3 of 7 Nov2018

DELTA 400 PROFESSIONAL Technical Information

ILFORD developer

Dilution

35mm and Roll Film -

24°C/75°F

Meter setting (EI)

200/24 250/25 320/26 400/27 500/28 800/30 1600/33 3200/36

Spiral tank, deep tank, dip and dunk machines (min/24°C/75°F)

ILFOTEC DD-X

ILFOSOL 3

ILFOTEC HC

ILFOTEC HC

ILFOTEC LC29

ID-11

MICROPHEN

PERCEPTOL

Acufine

Agfa Rodinal

Kodak D-76

1+4 4½

−

1+9 4½ −

1+14 6

−

−

1+15 −

−

1+31 4

−

− 1+9

−

1+19 4

1+29 5½

−

−

5½

stock

1+1 8

−

1+3 14

−

−

stock 4

1+1 7

−

1+3 11½ −

9

stock 7

1+1 9

−

1+3 14½

−

stock 4½

1+25 5

1+50 9½

5½ stock

1+1 8

1+3 14

−−−−−−−−−−−−−−−11½17½

5½

68½−

5

−

57½811½19½5916−−−5½

716811½19½

7

−−−−−−−−−−61120−−−7

−−−−−−−

7½

10½

15½

9½ 13

−

−− −

4½ 5½ 8

−7 10

4½ 5½ 8

−7 10

11 16

−9 11½

1514 18 −− − −6½ 7½ 1012 15½ −− − −− −

−− − −− − −7½ 10 19

−

−16

−

− −9 11½

1514 18 −

− −−

Non-ILFORD Developers (min/24°C/75°F)

− −

− −− −− −− −− −− −Kodak HC-110 A −

− − B 4

−Kodak T-Max 1+4 4

−

−Tetenal Ultrafin SF

Stock 5½ −

1+1 9

− −

− −Tetenal Ultrafin

1+4 5

Plus

− −Kodak Xtol stock 4

− − 1+1 6½

Dip and dunk machines (min/24°C/75°F)

ILFOTEC DD

Kodak T-Max RS

Kodak Xtol

ILFOLAB FP40, roller transport and short leader machines (sec/26°C/79°F)

ILFOTEC RT RAPID 1+1+2

1+1+5

− 4½ 5½ 8

7 10 − 5

5 5½ 7 8½

11

789 11

14½1215½17½

− −6

4½ 8½

8

6 9½

8½ 10

13½

7½ 9½ 12

11½ 14 18

1+4

stock

stock

6

− 5½

−

−

−

−−−

7

5 7

−−−

10 13 14

6½ 9

12½

8½ 11 14

55

65

−

−

−−6578−−71 84 104104 127 166

Nov2018Page 4 of 7

DELTA 400 PROFESSIONAL Technical Information

PROCESSING

Processing at Different Temperatures

DELTA 400 Professional film can be processed over a range of temperatures. Approximate development times

at temperatures other than 20°C/68°F may be calculated from the charts below. For example, if 6 minutes at

20°C/68°F is recommended, the time at 23°C/73°F will be 4½ min and the time at 16°C/61°F will be 9 min.

CONTRAST – TIME GRAPHS

The following graphs show the contrast of DELTA 400 Professional negatives when developed over a range of

development times.

ID11

MICROPHEN

DELTA 400 Professional film developed in ILFORD ID-11 stock at (1) 24ºC/75ºF and (2) 20ºC/ 68ºF.

DELTA 400 Professional film developed in ILFORD

MICROPHEN stock at (1) 24ºC/75ºF and (2) 20ºC/68ºF

PERCEPTOL ILFOTEC DD-X

DELTA 400 Professional film developed in ILFORD

PERCEPTOL stock at (1) 24ºC/75ºF and (2) 20ºC/68ºF

DELTA 400 Professional film developed in ILFORD

ILFOTEC DD-X 1+4 at (1) 24ºC/75ºF and (2) 20ºC/68ºF.

Page 5 of 7 Nov2018

DELTA 400 PROFESSIONAL Technical Information

CHARACTERISTIC CURVE

DELTA 400 Professional film developed in ILFORD ID-11 stock for 8 minutes at

24ºC/75ºF with intermittent agitation.

PROCESSING

DELTA 400 Professional can be processed in all types of processing equipment including spiral tanks, rotary

processors, dishes/trays, deep tanks and automatic processors. Standard capacity figures and replenishment

rates can be maintained, when fixing DELTA 400 Professional however, slightly longer times than used with

conventional film are recommended for best results.

Safelight recommendations

Handle DELTA 400 Professional film in total darkness.

Agitation

Intermittent agitation is recommended for use in spiral tanks and deep tanks. With spiral tanks, invert the tank

four times during the first 10 seconds, then invert the tank four times again during the first 10 seconds of each

further minute. Otherwise, follow the recommendations given by the processing equipment manufacturer.

Stop, fix, wash and rinse

For best results it is recommended that all process solutions are kept at the same temperature or at least within

5ºC (9ºF) of the developer temperature.

Stop Bath

After development the film can be rinsed in

ILFORD ILFOSTOP

water, but we recommend that an acid stop

bath is used such as ILFORD ILFOSTOP (with

Dilution 1+19 indicator dye). ILFOSTOP is also

recommended for all machine processing

Temperature Range

18–24ºC (64–75ºF)

applications. When tanks or dishes (trays) of

process solutions are in use a stop bath

Time (sec) at 20ºC (68ºF)

10 immediately stops development and reduces

Capacity (films per litre,

carry over of excess developer into the fixer

15x (135-36)

unreplenished) bath. This helps to maintain the activity and

prolong the life of the fixer solution.

The process time given is the minimum required, if necessary, a longer time may be used and should not cause

any process problems provided it is not excessive

Page 6 of 7 Nov2018

DELTA 400 PROFESSIONAL Technical Information

Fix

The recommended fixers are ILFORD RAPID

ILFORD RAPID OR HYPAM FIXERS

FIXER or ILFORD HYPAM FIXER.

Dilution 1+4 Wash

Wash the films in running water for 5–10

Temperature Range

18–24ºC (64–75ºF)

minutes at a temperature within 5ºC (9ºF) of

the process temperature. Or see note below

Time (mins) at 20ºC (68ºF)

2-5 for greater economy when using spiral tanks.

Capacity (films per litre,

24x (135-36)

unreplenished)

Note: For spiral tank use, the following method of washing is recommended. This method of washing is faster, uses less water yet still gives negatives suitable for long term storage.

After fixing, fill the spiral tank with water at the same temperature, +/– 5ºC (9ºF), as the processing solutions

and invert it five times. Drain the water away and refill. Invert the tank ten times. Once more drain the water

away and refill. Finally, invert the tank twenty times and drain the water away.

Rinse

For a final rinse use ILFORD ILFOTOL wetting agent added to water, it helps the film to dry rapidly and evenly.

Start by using 5ml per litre of rinse water (1+200), however the amount of ILFOTOL used may need some

adjustment depending on the local water quality and drying method. Too little or too much wetting agent can

lead to uneven drying. Remove excess rinse solution from the film before drying.

Drying

To avoid drying marks, use a clean squeegee or chamois cloth to wipe DELTA 400 Professional film before

hanging it to dry. Dry DELTA 400 Professional at 30–40°C/86-104°F in a drying cabinet or at room

temperature in a clean dust-free area.

STORAGE

Unexposed Film

For immediate use, store DELTA 400 Professional in a cool (10–20°C/50-68°F), dry place in its original

packaging. DELTA 400 Professional may be stored in a fridge/freezer but allow plenty of time for the film to

acclimatise prior to use.

Exposed film

Once exposed, process DELTA 400 Professional as soon as practical.

Exposed films should always be stored in cool, dry conditions - as recommended above.

Negatives

Store processed negatives in a cool (10–20°C/50-68°F), dry place, in the dark. Suitable storage sleeves

include those made of cellulose triacetate, Mylar, paper (pH6.5–7.5) or inert polyester.

A wide range of fact sheets is available which describe and give guidance on using ILFORD PHOTO products. Some products in this fact sheet might not be available in your country.

HARMAN technology Limited, Ilford Way, Mobberley,

Knutsford, Cheshire WA16 7JL, England

Page 7 of 7 Nov2018