MACO MULTIBROM F + N

Technical application TA No. 121/1


Table of contents:
Short Summary

  1. General data in regard of the silverhalogenide photographic emulsion
  2. Assortment of surfaces
  3. Description of surfaces
  4. Image tone of the photographic emulsion
  5. Tone of the base-material
  6. Grades/Filters + Paper ISO-Speed + ISO-Range
  7. Filtervalues for colorenlargers
  8. Maximum density
  9. Type + weight of the base
  10. Coating structure
  11. Toning
  12. Retouching
  13. Darkroom safety light
  14. Informations for processing
  15. Storage
  16. General informations about MACO-products

A short summary of attributes of these black & white photographic papers

MULTIBROM De Luxe offers a combination of modern emulsion-technology with classic baryta-fiberbase (VC-FB).

1. General data in regard of the silverhalogenide photographic emulsion

2. Assortment of surfaces

Glossy: MACO MULTIBROM F
Matt: MACO MULTIBROM N

3. Description of surfaces

MACO MULTIBROM: Super-high gloss finish by hot drying, e.g. with MACO ecomat TP5060.
Natural gloss by air drying.
Silky gloss by hot drying, emulsion side facing cloth.


4. Image tone of the photographic emulsion

MULTIBROM papers have an emulsion with neutral blacks. Can be manipulated by use of different developers.

For example:
MACO ecoprint = cold image tone
LP-BROM 1 = warm image tone
Calbe MH 28 = very warm image tone
LP-BROM 3 = cold image tone

5. Tone of the base materials

MACO MULTIBROM F+N white base

6. Grade/Filter Paper ISO-Speed: ISO-Range

All data are approximate and given to best knowledge, individual conditions may lead to slightly different results.

(Grade 2, without Filter P 125 R 100-110)

Grade Filter ISO-Speed ISO-Range

0

0

P 50-64 R 150

1

1

P 90-100 R 120

2

2

P 64 R 100

3

3

P 32-40 R 70

4

4

P 40-50 R 65

5

5

P 20-25 R 60



7. Filtervalues/enlargers with colorheads

MACO MULTBROM papers can either be exposed by using filtersets (e.g. LABOR PARTNER VC-Filter, ORIENTAL Acrylic VC-Filter or ILFORD Multigrade Filter, table above) or with enlargers with VC-head.

With colorenlargers use the following values as a starting point:

(check whether your enlarger has DD - or CC-filtervalues)

Grade DD-Values CC-Values

0

80Y

80Y

1

25Y

30Y

2

10M

10M

3

40M

50M

4

60M

110M

5

130M

200M

Depending on age of lamp, type of filter and
enlarger deviations to a.m. values is possible.

8. Maximum density

The glossy surface achieves the highest values (MULTIBROM F + N). Matte Surfaces achieve in comparison lower values.

Following (approx.-) values have been achieved with a negative (Gamma 0,60) in combination with the paper developer LP-BROM1.

MACO MULTIBROM F + N = max. Dens. 2,25

9. Weight resp. Thickness of base materials

MACO MULTIBROM F + N

240

Grams fiberbase+
approx.

20

Grams baryta coating+
approx.

     40

Grams emulsions/protective coatings
final weight approx.

= 300

Grams

10. Coating structure (top to bottom)

1. coating: protective coating with UV-absorbents etc..
2. coating: lightsensitive emulsion coating, hardened.
3. coating: Bariumsulphate-separation coating.
4. base: fiberbase material.
5. backside: specially prepared for waterbased adhesives and writing.


11. Toning:

MACO MULTIBROM photographic papers can be toned in almost all available toners. Following some application examples:

Deep, brown blacks: A: Treatment in PEERLESS watercolors.
                                      B: Toning in LABOR PARTNER LP-SEPIA.
Light brown/ yellowish : Toning in LABOR PARTNER LP-SEPIA with adding vinegar.
Bluetoning: Toning in LABOR PARTNER LP-AZUR.
Toning with LP-SELENIA: A: Increasement of max. density.
B: Improvement of archival quality (image silver)
C: Change of image tone

For gelatine toning, whether partially, or full image, using PEERLESS-watercolors( U.S.A.) has been proven for more than a century.

12. Retouching

For MACO MULTIBROM papers PEERLESS-watercolors „DRY SPOT SET" have been proven. The colors may be adjusted to the image tone and leave no marks on the surface.

13. Darkroom safety light

Protective filter red or amber. Max. 15 Watts, minimum distance Lamp - tray 120 cm (a fogging test may be recommendable).

14. Informations for processing

Tray processing:

All MULTIBROM papers are suited for tray processing with all available quality photochemistry.

To get prints with a flawless surface please take special care. Prints to be processed should be handled on the very edges only - place prints into solutions emulsion side up in order to avoid scratches.

15. Storage

Original MACO packages, once opened, should be stored in a cool and dry place. Packages feature easy opening on opposite side of label, punches under the lid allow for easy closing.

16. General informations about MACO-Products

By sending a sufficiently stamped envelope with the address, one can receive technical application sheets about all MACO Products, of which some have been mentioned here.


TA MULTIBROM TA-No. 121/1 January 1998

Errors, or omissions regarding technical progress, remain excepted.

MACO PHOTO PRODUCTS is a Division of
HANS O. MAHN & CO. KG
Brookstieg 4, 22145 Stapelfeld, Germany
Hotline: 040-237 008-88
Email:   photo@mahn.net