ARS-IMAGO CHEMICALS · ARS-IMAGO FD FILM DEVELOPER is a concen-trated liquid that needs to be...

Luglio 2018 Pag. 1

www.ars-imago.comwww.ars-imago.ch

ARS-IMAGO CHEMICALSDATA SHEETS

© Giorgio Coen Cagli

July 2018 Pag. 2

ARS-IMAGO FDFILM DEVELOPER

ARS-IMAGO FD FILM DEVELOPER is a highly concentrated, high-energy black and white film developer with a moderate compensating effect.Film sensitivity is exploited thoroughly (high sensitivity to the foot); moreover, its high ener-gy and moderate compensating effect allow high I.E. (along with the appropriate develop-ment times) without causing excessive contrast or excessive compression of lighter tones. The developer yields good acutance and fine grain, without the formation of excessive agglomer-ates of silver salts even in push-processing.

Economical: very high development yield

Effective: full exploitation of film’s sensitivity

Energetic: suitable for push-processing

PREPARATIONARS-IMAGO FD FILM DEVELOPER is a concen-trated liquid that needs to be diluted immedi-ately prior to its use and thrown after the devel-opment process.

It is a “One Shot” developer: the diluted working solution must not be reused. Throw after use.

Generally, the most balanced results are ob-tained with a 1+39 dilution. However, it is possi-ble to use dilutions between 1+19 and 1+59.1+39 dilution allows a wide choice of develop-ment times with most films and provides ex-cellent results even with the use of advanced contrast control techniques such as the Zone System.

For high contrast contrast films, a higher dilution is recommended, up to 1+59.In these cases, it is advisable to use at least 6 ml of concentrated liquid for each 135/120 format film. For low-contrast films, a lower dilution is recommended, starting from 1+19.

Prepare the working solution with running wa-ter. The volume of required working solution depends on the size and kind of tank and the number of films/spirals in the tank.

TEMPERATUREThe working solution must be used at 20°C. During the entire development process, includ-ing stop bath, fixing bath and final rinse, the tem-perature must be kept as constant as possible.

AGITATIONRecommended agitation for tank development: continue for the first 30 seconds, two inversions every 30 seconds for the remaining develop-ment time.The development time starts from the moment the solution is introduced into the tank and ends when the stop bath is introduced.At the end of each agitation sequence, rap the tank on the working desk to avoid the formation of air bubbles on the surface of the film.

KEEP OUT OF REACH OF CHILDREN

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1 PARTCHEMICAL

39 PARTSWATER

+ =

975ml WATER + 25 ml CHEMICAL= 1L WORKING SOLUTION

WORKINGSOLUTION

July 2018 Pag. 3

film timetime DILUtionDILUtionISO

* High Contrast** Presoak recommended

IMAGO 320320 8’30’’ 1+39 a 20°620 10’00’’ 1+39 a 20°

16008’00’’ 1+19 a 20°

ILFORD HP5

ILFORD FP4 PLUS

2004008001600

5’15’’4’00’’

8’00’’13’00’’

125250400

5’00’’6’30’’8’00’’

1+39 a 20°1+39 a 20°1+39 a 20°1+39 a 20°1+39 a 20°1+39 a 20°1+39 a 20°

ILFORD DELTA 10050100160

4’30’’5’45’’8’00’’

1+59 a 20°1+59 a 20°1+59 a 20°


5’30’’7’30’’13’00’’

1+39 a 20°1+39 a 20°1+39 a 20°

ILFORD DELTA 32001600 8’30’’ 1+19 a 20°3200 6’00’’ 1+19 a 20°

ILFORD PAN F PLUS 50 6’00’’ 1+39 a 20°

KODAK T-MAX 400

2004008001600

7’30’’6’00’’

9’00’’12’30’’

1+39 a 20°1+39 a 20°1+39 a 20°1+39 a 20°

KODAK TRI-X 400

2004008001600

6’30’’4’30’’

8’30’’11’00’’

1+39 a 20°1+39 a 20°1+39 a 20°1+39 a 20°

KODAK T-MAX 10050100200

6’30’’4’30’’

9’00’’

1+39 a 20°1+39 a 20°1+39 a 20°

KODAK P3200 32006’00’’ 1+19 a 20°

ROLLEI RPX 10050100200

4’45’’5’30’’6’30’’

1+59 a 20°1+59 a 20° **1+59 a 20° *

ROLLEI RPX 400100200400

4’30’’6’30’’9’30’’

1+39 a 20°1+39 a 20°1+39 a 20°

ROLLEI INFRARED 400 7’30’’ 1+59 a 20°ROLLEI ORTHO 25 25 6’00’’ 1+39 a 20°

KENTMERE 10050100

5’15’’7’50’’

1+39 a 20°1+39 a 20°

KENTMERE 400200400800

4’30’’6’30’’

1+39 a 20°1+39 a 20°

10’00’’ 1+39 a 20°

FOMAPAN 100 100 6’30’’ 1+39 a 20°FOMAPAN 400 400 9’00’’ 1+39 a 20°

AGFAPHOTO APX 10050100200

4’30’’5’30’’8’00’’

1+59 a 20°1+59 a 20°1+59 a 20°

FUJI ACROS 100100100200

6’30’’4’00’’5’00’’

1+59 a 20°1+39 a 20°1+39 a 20° *

BERGGER PANCRO 400 10’30’’ 1+39 a 20°JCH Stree t Pan 400 12’00’’ 1+39 a 20°

DEVELOPMENT TIMEThe following development times are suggested in order to obtain negatives with an optimum tonal extension in regard to the provided I.E. and that are suitable for analog printing and digital scanning.

Dilution: +39 (1+19 or 1+59 where indicated)Temperature: 20°C

STOP BATHIt is recommended to use a stop bath between the development and fixing baths, unless otherwise specified by the film producer. We suggest using ARS-IMAGO ST - STOP BATH.

FIXING BATHWe suggest using ARS-IMAGO FX-FIXER UNI-VERSAL as a fixing bath. It is recommended not to fix the films beyond necessity in order to fully appreciate the high resolution which characterises this development bath. To avoid long fixing times, we recommend using a new or regenerated fast-fixing, non-hardening solu-tion, at the highest concentration specified by the producer (typically 1+4).

FINAL RINSEWash in running water at 20° C for 10-15 min-utes or repeatedly fill and empty the tank while gradually increasing the agitation.

WETTING AGENTAfter rinsing, it is recommended to use a wet-ting agent as a last bath. We suggest using ARS-IMAGO WB - WASHING BATH.

DRYINGDry the film in a closed area, away from dust and draughts.

CAPACITYIt is possible to develop up to 40 films per 300ml of concentrated liquid.

LIFE OF THE PRODUCTIt is recommended to use the concentrated solution within 6 months after opening. It is rec-ommended to remove air from the packaging by compressing it, by inserting glass beads or by filling it with inert gases.

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FILM TIME DILUTION

July 2018 Pag. 4

ARS-IMAGO FEECO FILM DEVELOPER

PREPARATION

ARS-IMAGO FE ECO FILM DEVELOPER is a con-centrated liquid that can be diluted 1+1 or 1+3.Prepare the working solution with running wa-ter. The volume of required working solution depends on the size and kind of tank and the number of films/spirals in the tank.

FEATURES• Eco developer - hydroquinone free• Universal developer for any kind of b&w films• Good use of film speed• Fine grain and high sharpness • Mildly compensating and good results on highlights


AGITATIONRecommended agitation for tank development: continue for the first 30 seconds, two inversions every 30 seconds for the remaining develop-ment time.The development time starts from the moment the solution is introduced into the tank and ends when the stop bath is introduced.At the end of each agitation sequence, rap the tank on the working desk to avoid the formation of air bubbles on the surface of the film.

CAPACITY AND STORAGE LIFEThe diluted 1+1 solution can develop up to 15 films. The development time has to be in-creased by 15% every 3 films. The working solution can be stored for 4 months (fully filled container) or 2 months (partially filled container. The one shot solution has to be discarded after use.


To develop up to 15 films increasing develop-ment time by 15% every 3 films.

Dilute just before use and discard afterwards

The ars-imago FE is an ecological and universal black and white film developer. It is an ascorbic acid based, hydroquinone free and easy-mixing solution that combines fine grain and full use of film speed. It produces very sharp negatives enhancing shadow contrast and improving highlights detail.

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HO

HO

HO

OHO

OH

1 PARTCHEMICAL

1 PARTWATER

+ =


WORKINGSOLUTION

1 PARTCHEMICAL

3 PARTSWATER

+ =

750ml WATER + 250 ml CHEMICAL= 1L ONE SHOT SOLUTION

ONE SHOTSOLUTION

ECOLine

DILUTION 1+1 - Reusable solution

DILUTION 1+3 - One shot solution

July 2018 Pag. 5

DEVELOPMENT TIMEThe following development times are suggested in order to obtain negatives with an optimum tonal extension in regard to the provided I.E. and that are suitable for analog printing and digital scanning.

Dilution: 1+1 - Reusable solutionTemperature: 20°C

Dilution: 1+3 This one shot solution produces an higher sharp-ness and a better compensating effect especial-ly on high contrast scenes. The development times chart will be posted soon on the next updated datasheet.

STOP BATHIt is recommended to use a stop bath between the development and fixing baths, unless otherwise specified by the film producer. We suggest using ARS-IMAGO ST - STOP BATH.

FIXING BATHWe suggest using ARS-IMAGO FX-FIXER UNI-VERSAL as a fixing bath. It is recommended not to fix the films beyond necessity in order to fully appreciate the high resolution which characterises this development bath. To avoid long fixing times, we recommend using a new or regenerated fast-fixing, non-hardening solu-tion, at the highest concentration specified by the producer (typically 1+4).

FINAL RINSEWash in running water at 20° C for 10-15 min-utes or repeatedly fill and empty the tank while gradually increasing the agitation.

WETTING AGENTAfter rinsing, it is recommended to use a wet-ting agent as a last bath. We suggest using ARS-IMAGO WB - WASHING BATH.

DRYINGDry the film in a closed area, away from dust and draughts.

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Pelli cole dil. 1+1dil. 1+1ISO

FOMAPAN 100 ’00’’FOMAPAN 400 400 7’00’’


10

0

0

6’30’’8’00’’


8’30’’10’00’’

FUJI ACROS 10050100200

6’30’’8’00’’10’00’’

BERGGER PANCRO200 8’00’’400 9’30’’

JCH Street Pan 400 10’00’’

6’00’

FILM TIME

FILM TIME dil. 1+1TIME dil. 1+1ISO

IMAGO 320320 7’30’’620 9’00’’

ILFORD HP5

ILFORD FP4 PLUS

2004008001600

8’00’’6’30’’

10’00’’12’30’’

50125

6’00’’7’00’’


6’30’’8’00’’9’30’’


6’00’’7’00’’8’00’’

ILFORD DELTA 32001600 11’00’’3200 13’00’’

ILFORD PAN F PLUS 50 6’30’’

160013’00’’

KODAK T-MAX 400

2004008001600

6’30’’5’00’’

7’30’’8’30’’

KODAK TRI-X 400

2004008001600

7’00’’6’00’’

8’30’’9’30’’

KODAK T-MAX 10050100200

7’30’’6’30’’

8’30’’

KODAK P3200 320011’00’’

ROLLEI RPX 10050100200

6’30’’8’00’’9’30’’

ROLLEI RPX 400200400800

7’00’’8’30’’10’00’’

KENTMERE 10050100

6’30’’8’00’’

KENTMERE 400200400800

7’00’’8’30’’10’00’’

July 2018 Pag. 6

ARS-IMAGO R9FILM DEVELOPER - HIGH CONCENTRATE

PREPARATIONThe ARS- IMAGO R9 FILM DEVELOPER is a liquid concentrated developer. Dilute the developer with running water just before use and discard it afterwards. This is a “One Shot” developer that should not be reused.

The recommended Dilution:• 1+25 1 part of chemical + 25 part of water• 1+50 1 part of chemical + 25 part of water

The volume of working solution you need de-pends on the size of your tank and on the num-ber of films that you are developing.

CAPACITY40-80 films with 500 ml of ARS-IMAGO R9 con-centrate.

STORAGE Store the chemical in a tightly closed bottle.


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1 PARTCHEMICAL

25 or 50 PARTSWATER

+ =WORKINGSOLUTION

The ARS IMAGO R9 FILM DEVELOPER is a highly concentrated, high energy, mildly compensating one-shot developer for processing black and white films.

Prepared with the original Agfa Rodinal formula tested for over a hundred years, it is one of the oldest and most versatile developer ever produced, used and known all over the world and it can boast one of the most complete collections of development chart times. The concentrated solution can be diluted to adapt to all types of negatives. This developer guarantees good contrast control and an accurate grain rendition without softening or excessive grain crumpling with excellent sharpness.The concentrated chemical’s shelf life is practically unlimited in its original packaging and it keeps its quality for a long period of time after opening.


AGITATIONRecommended agitation for tank development: continue for the first 30 seconds, two inversions every 30 seconds for the remaining develop-ment time. The development time starts from the moment the solution is introduced into the tank and ends when the stop bath is introduced.

Min1+25

Min1+50FILM TYPE

10IMAGO 320

ARS-IMAGO

ROLLEI

SUPERPAN 20011 20RETRO 400 S

RPX 25RPX 100

12 21RPX 400

1/2

10.5 22INFRAREDORTHO 25 ISO 25ORTHO 25 ISO 50

RETRO 80 S-

-

-98

14178

611

1116

18

6 -NEOPAN 100 ACROS

8 22PANCRO 400

6 12PAN F 50FP4 125HP5 400

DELTA 100DELTA 400

11 -DELTA 3200

7 14TRI-X 400T-MAX 100T-MAX 400

1/2

16

15116

5

1889

KODAK

BERGGER

FUJI

ILFORD

Min1+25

Min1+50FILM TYPE

At the end of each agitation sequence, rap the tank on the working desk to avoid the formation of air bubbles on the surface of the film.

DEVELOPMENT TIMESThese development times are suitable to achie-ve an excellent tonal range. Consult the deve-lopment chart.

88 18

-

July 2018 Pag. 7

ARS-IMAGO STSTOP BATH HO

OO

OHO

OHOH

PREPARATIONRecommended dilution: 1 + 19 (19 parts water + 1 part of chemical = working solution).

AGITATIONAgitate continuously throughout the treatment time.

TEMPERATUREKeep the temperature constantly at a maximum difference of 5°C from the developing bath.

TREATMENT TIMEA treatment time of 40-60 seconds is recom-mended, both for film and for baryte and poly-thene-coated paper.

ARS-IMAGO ST - ECOSTOP BATH ODOURLESS is an odourless citric acid solution that, when diluted, can be used as a universal stopper for black and white film and paper.The use of an acid stopping bath is strongly recommended to arrest the development process with immediate action. The stopping bath also helps not to contaminate the fixing process, prolonging the chemical’s action and increasing its durability.

This concentrated solution contains Citric Acid Monohydrate and is free from PBT/vPvB chemicals.

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1 PART CHEMICAL

19 PARTS WATER

+ =


WORKING SOLUTION

ECOLine

July 2018 Pag. 8

ARS-IMAGO FX UNIVERSAL FIXER

PREPARATIONDilute the concentrated solution with running water. The fixer is ready for use only after care-fully mixing the working solution.• Standard fixing dilution: 1+7 / 1+9• Quick fixing dilution: 1+5

The final volume of the working solution de-pends on the size and kind of tank and the num-ber of films or spirals that are being handled.

TEMPERATUREConstantly keep the temperature at max 5°C dif-ference from the development bath.

AGITATIONAgitate in the same way as during the develop-ment bath.

LIFE OF THE PRODUCTThe concentrated product’s shelf-life is 2 years in its original packaging. It is recommended to use the work solution within 3 months after opening.

To avoid the risk of insufficient or excessive fix-ing, it is possible to test the film clarification time. Proceed in the following way: pour a drop of the fixing solution over a portion of undeveloped film. Wait until the wet part of the drop becomes transparent (usually after 30-60 seconds). Then, immerse the entire film strip in the fixing solu-tion and measure the time it takes for the mark left behind by the drop to be no longer visible. The optimal fixing time corresponds to twice the clarification time. Overly prolonged fixing times may have negative effects on the film.

FINAL RINSEAfter the fixing bath, rinse the film to remove chemical residues and increase the durability and storage over time. Wash for about 10 minutes in running water at a temperature not hotter nor colder than 5°C from the fixing bath temperature.Poly-coated papers (RC): rinse for 2-3 minutesBaryte papers (FB): rinse for about 45-60 minutes

ARS-IMAGO FX FIXER UNIVERSAL is a universal, non-hardener fixer for black and white films and pa-pers; it is a highly concentrated liquid solution based on ammonium thiosulphate. Depending on the dilution, it can be used both as standard or fast fixer.

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1 PARTCHEMICAL

1 PARTCHEMICAL

1 PARTCHEMICAL

5 PARTSWATER

7 PARTSWATER

9 PARTSWATER

+

+

+

=

=

=




1L WORKINGSOLUTION

1L WORKINGSOLUTION

1L WORKINGSOLUTION

1+5 3-5 min

1-3 min6-8 min

3-5 min

30-60 sec

60-90 sec

60 sheets17,8 x 24 cm

35 sheets17,8 x 24 cm

1+7

1+9

Capacity/liter

DILUTION FILM PAPER RC PAPER FB

TREATMENT TIME - CAPACITYDo not exceed the provided capacity.

July 2018 Pag. 9

ARS-IMAGO MBMONOBATH

PREPARATION

ARS-IMAGO MB MONOBATH is a liquid solution consisting of part A (developer) and part B (fixer) to be mixed before the developing process.

A+B Stock: By mixing part A with part B in equal measure, you obtain the working solution that can be reused several times until exhaustion. This happens within two weeks; until that mo-ment, a correct development is guaranteed.The recommended processing time is 8 minutes.

TEMPERATUREThe temperature does not affect the process in a decisive way, but must be between 20°C and 25°C.

AGITATIONThe recommended agitation for film develop-ment in tank is continuous for the first 30 se-conds, then two inversions every 30 seconds for the remaining development time. At the end of each agitation, knock the tank on the working desk in order to prevent the formation of bub-bles on the surface of the film.

CAPACITY/DURATIONWith the Stock solution, you can develop up to 15 films over two months. During this time span, the solution will change color and a residue will appear at the bottom of the bottle. If you avoid pouring it into the tank, it will not affect the result and effectiveness of the development. It is likely that the Stock solution’s capacity and duration are greater than those guaranteed. It is rather advisable to use the diluted solution immedia-tely, and to discard it after use.

RACOMMENDATIONThe best results are obtained with cubic grain films such as Ilford HP5, FP4 and Pan F, Kodak Tri-x, Rollei Rpx, Fomapan and Kentmere. It is not a recommended to use the solution with T-grain films such as Ilford Delta, Kodak T-Max 200 and Fomapan.If the negatives have irregular or milky edges, a quick-fixing bath is necessary.For archival storage that needs to remain safe over time, it is advisable as a preventive mea-sure to give the negatives a second fixing bath, even a few days after the development.


2+1+1 Dilution: By mixing the Stock solution with the same amount of water, you obtain a 1:1 diluted solution (2 parts water, 1 part A and 1 part B) that can be used as a “one shot “ developer to be di-sposed at the end of the process.The recommended processing time is 10 minutes.

* If using a 650ml tank, you can add 50ml of water, both in the Stock solution and the diluted solution, without changing the recommended development time.

1 PART B1 PART A

+ =

300ml part A + 300 ml part B= 600ml WORKING SOLUTION

WORKING SOLUTION

1 PART ACHEMICAL

1 PART BCHEMICAL

2 PARTSWATER

+ + =WORKINGSOLUTION

300ml water + 150 ml part A+ 150 ml part B = 600ml* WORKING SOLUTION

ARS-IMAGO MB MONOBATH is a mono-bath liquid developer for black-and-white films that develops and fixes in one single solution. It gives a balanced tonal rendition and a medium-high contrast.

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July 2018 Pag. 10

ARS-IMAGO WB WASHING BATH

PREPARATIONDilute the concentrated liquid with running wa-ter before use, at the recommended dilution rate of 1+99.

The final volume of the working solution de-pends on the size and kind of tank, the number of films/spirals and the size of trays that are be-ing handled.

AGITATIONAgitate very gently without overturning the tank and remove the foam that may appear on the surface. To prevent the wetting agent from leav-ing traces on the spirals and contaminating sub-sequent treatments, it is advisable to immerse the film manually in the solution in a tray or jug.

TREATMENT TIMERecommended treatment time: 30-60 seconds.

LIFE OF THE PRODUCTThe concentrated solution in its original pack-aging has no expiration date. It is recommended to use the diluted solution within 2 weeks after preparation.


ARS-IMAGO WB - WASHING BATH is a concentrated liquid wetting agent to be used as the last bath after the final rinse. The treatment makes the film anti-static and prevents limestone traces on the surfa-ce. It also has a stabilising effect and reduces the bending of the films (in particular the ones with a PET component). It lowers the drying time.

Do not rinse the film at the end of the treatment.

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1 PART CHEMICAL

99 PARTS WATER

+ =


WORKING SOLUTION

July 2018 Pag. 11

ARS-IMAGO CHEMICALSNEW PRODUCTS FOR BLACK AND WHITE

HOW?Through the research and identification of simple and professional basic products for development and printing. All the chemicals in the ars-imago line have been subjected to empirical tests, that are cle-arly described to the user. The products have speci-fic features that the users can follow in the standard process, or modify through experimentation, which can be discussed and verified with ars-imago staff.

WHY?The answer is simple: because users require it, and because we are willing to innovate and keep the fo-cus on photographic practice that is at the core of our passion, to guide the user into the vast world of analog products and to offer quality and innovative alternatives.

www.ars-imago.com

The new line of chemicals produced and distributed by ars-imago are dedicated to all film photography lovers - from the professional photographer to the one who is about to enter the darkroom for the first time. They were conceived for a specific need: to disclose and expand the use of film and traditional analog tech-niques, while looking ahead.

The technical data sheets, available in digital format, are documents that can be expanded both through the users’s experience and empirical tests coordinated by ars-imago. By doing so, the amount of information avai-lable will be constantly increased.

July 2018 Pag. 12www.ars-imago.com

IMAGO 320BLACK AND WHITE FILM

IMAGO 320 is a Black and White Film nominally rated at ISO 320 speed. It can be used both indoors and outdoors with different light conditions. IMAGO 320 is a versatile fine-grain film with a very high sharpness and a wide exposure latitude. It is a panchromatic film, up to 680nm, coated on acetate base and compatible with most of available developers.

• ISO 320, pushable up to ISO 800 • Fine Grain• High Sharpness• Wide exposure latitude • Available in 135 and 120 format Resolving

power: 120 lp/mm • Granularity RMS (x1000): 14

Film size- 135 size on a 120 microns acetate base.- 120 size on a 100 microns acetate base.

Film reciprocity compensation1/1000 - 1/2’’: No adjustment needed1’’- 7’’ : +1 Stop Compensation8’’ - 15’’ : +2 Stop Compensation16’’ - 25’’ : +3 stop Compensation

Film structure

Filter correctionIMAGO 320 can be used with all standardtypes of filters. (No infrared).Filter manufacturers do usually indicate whatcorrection factor will be needed.

Storage and handlingLoad and unload your camera in subduedlight. Storage in the fridge at 8°C / 46.4°F doubles the expiry date.For best results, process film as soon as possible after exposure. Please avoid storage temperatures over 40°C / 104°F.

Developing times - Manual processingThe developing times are based on intermittent agitation in small tanks: first 30'' continuous, then 2-3 gentle inversions every minute.

Protective Layer

Lightsensitive emulsion

Anti-Halo layer

Acetate base

Anti-Curling layer

DEVELOPER TIMEISO

ars-imago FD320640

8’30’’ 1+39 at 20°1+39 at 20°

320320

7’30’’13’00’’

1+25 at 20°1+50 at 20°

Ilford ID-11320

320

320

320

7’00’’11’30’

11’30’

’

’

Stock at 20°1+1 at 20°

1+1 at 20°

1+1 at 20°

Ilford Microphen320320

6’30’’11’00’’


Kodak D-76320320

7’00’’12’00’’


Kodak X-Tol320320

8’00’’10’00’’

Stock at 20°

Stock at 20°

Stock at 20°

1+1 at 20°

320 8’00’

320 10’00’

Bergger Berspeed 320 10’30’

Kodak HC-110 (B) 320 5’30’ +31 at 20°

Kodak T-Max 320 6’00’ +4 at 20°’

’

1

1

’

’

’

10’00’’

DILUTION

ars-imago FE

ars-imago MB

Rodinal, R09, R9

7’30’’1+3 at 20°

July 2018 Pag. 13

This graph shows how the actual sensitivity and the gradient contrast (G) of the film changedepending on developing times. The four colors highlight the four different kinds of contrast foreach pairing ISO (exposure) - Time (development).

VERY HIGH-CONTRAST NEGATIVEG 0.65-0,75 - Exposed at 500 ASA anddeveloped between 14-20 min. at 20°C

Recommended for very low-contrast scenesor for graphic results.

MID-CONTRAST NEGATIVEG 0.45-0,55 - Exposed at 320 ASA and de-veloped between 7.15-9.45 min. at 20°C

Recommended for best results with themajority of scenes and all types of enlargersor scanners.

HIGH-CONTRAST NEGATIVEG 0.55-0,65 - Exposed at 400 ASA anddeveloped between 10-13.30 min. at 20°C

Recommended for low-contrast scenesand diffuser enlargers.

LOW-CONTRAST NEGATIVEG 0.35-0,45 - Exposed at 250 ASA anddeveloped between 5-7 min. at 20°C

Recommended for high-contrast scenesand condenser enlargers.

Imago 320 - FD (1+39)

Imago 320 - D-76 (1+1)

IMAGO 320SENSITIVITY AND CONTRAST

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IMAGO 320 - Kodak D-76 (1+1)

This curve is characterised by a short toe and a good contrast if exposed correctly. The portion tends to raise, emphasizing the midtones and the mid-high tones that are through slightly lighter tones than normal and returning images that tend to be more open and airy.

IMAGO 320 - ars-imago FD (1+39)

Sinuous-looking curve, with an extended toe that lessens the effects of underexposure yet generally giving back deep shadows and good details, especially when working with a slight overexposure. The image’s overall tone is balanced with particular emphasis on darker tones.

IMAGO 320 is a Black and White Film nominally rated at ISO 320 speed. It can be used bothindoors and outdoors with different light conditions. IMAGO 320 is a versatile fine-grain filmwith a very high sharpness and a wide exposure latitude. It is a panchromatic film, up to680nm, coated on acetate base and compatible with most of available developers.

IMAGO 320CHARACTERISTIC CURVES

July 2018 Pag. 15

IMAGO 320 - ars-imago R9 (1+25)

IMAGO 320 - ars-imago MB Monobath

The curve trend is regular and rectilinear, indicating a good and firm tone separation. Contrast on the negative is generally high; a good print can be obtained by using a multigrade contrast filter n. 1.

Rectilinear curve with a short toe and without a hint of a shoulder on the lights; excellent tone separation both on the tone scale extremes and on the midtones, with a highly linear contrast reproduction.

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IMAGO 320CHARACTERISTIC CURVES

ARS-IMAGO CHEMICALS · ARS-IMAGO FD FILM DEVELOPER is a concen-trated liquid that needs to be...

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