WOLFEN DN21 - 36EXP
$14.00
In stock
WOLFEN DN21 comes into its own when shooting portraits and storytelling scenes. Its high dynamic range produces detailed tender renderings.
The panchromatic emulsion is suited for sharp detail, low grain and subtle gradient transitions. WOLFEN DN21 captures soft tonal contrast, retaining attributes even in super bright scenarios.
Additional Information
Film Type: B&W
ISO: 13
Exposures: 36
Pack: 1
Data Sheet: Click Here
Processing: Click Here
*Photographer:doreenboehnke
Data SheetData Sheet DN21
ORWO Duplicating Negative Film DN 21
Product description: ORWO duplicating negative film DN 21 serves as a film for the production of black & white intermediate negatives. Due to its panchromatic sensitisation this film can be used for duplicating from b& w master positives as well as from colour master positives producing well-balanced grey values referring to original colours. There is a special AHU-layer (Anti Halation Under layer) between the emulsion layer and the base.. This AHU-layer guarantees an outstanding anti halation. The excellent photographic and physical properties enable the production of extraordinary black & white prints. In regarding to its polyester base the film is an ideal medium for long term storage.
Base: Safety base, polyester, 125 µm
Structure of layers
protective gelatine layer emulsion layer AHU-layer subbing and permanent anti static layer
base
antistatic back layer
Availability of standard assortment
| width | length | perforation |
| 35 mm | 610 m | P-4750 (KS 1870) |
| 35 mm | 610 m | N-4740 (BH 1866) |
| 35 mm | 305 m | P-4750 (KS 1870) |
| 35 mm | 305 m | N-4740 (BH 1866) |
| 16mm | 610m | 1-0 RA-7605 (1RB 2994) K-Code |
The Film is available with foot numbers or machine readable code. Further possibilities according to request.
Storage
| Raw Stock : | up to 12 month: | 18°C or lower |
| more than 12 month | 14°C or lower | |
| Exposed film : | process as soon as possible | |
| Processed film : | store at 21°C or lower with 40 to 60 % relative humidity for normal |
periods long term storage: according to the standards ISO 5466, SMPTE RP131 and ANSI IT9.11. Substances as sulphur dioxide and hydrogen sulphide, formaldehyde vapours and radioactive radiation have a negative influence on films.
Warranty: 24 month to the a.m. storage conditions
Processing: According to ORWO instruction 1182 (D96) to a recommended average gradient of g = 0.65. Process immediately.
RMS-Granularity: Less than 9 ( read at a net visual diffuse density of 1.0 above the minimum density using a 48 µm aperture).
| Modulation transfer factor m : | 0.80 |
| Characteristic curve DN 21: | Processing ORWO instruction 1182, |
Spectral sensitivity: For equal energy spectrum
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Darkroom lighting: Films should be processed in total darkness. If absolutely necessary, processing can be done at a light of a 15 watt-lamp (indirect) with ORWO safe light filter no. 108 (dark green), Kodak no. 3 or Ilford no. 908, but a distance of at least 75 cm should be kept.
FILMOTEC GmbH
Ortsteil Wolfen
Röntgenstraße 3
06766 Bitterfeld-Wolfen
Tel.: +49 (0) – 3494 – 36 96 80
Fax: +49 (0) – 3494 – 36 96 82
filmotec@filmotec.de
ProcessingProcessing – ORWO Instruction no. 1182
ORWO – Instruction no. 1182
ORWO black & white negative camera films
ORWO black & white duplicating positive films
ORWO black & white duplicating negative films
Application: ORWO negative black & white motion picture films and also both duplicating positive and duplicating negative films are to be developed according to ORWO Instruction no.
Procedure
| no. | process | bath | time (min) | temperature (°C) |
| 1 | developing | ORWO 17 or | 5 … 8 | 21 ± 1 |
Kodak D 96
| 2 | spray-washing | – | ½ … 1 | 20 … 24 |
| 3 | fixing | Calbe A 300 * or RF 90 * | 5 … 7 | 20 … 22 |
| 4 | spray-washing | – | 5 … 8 | 20 … 24 |
| 5 | wetting | Calbe F 905 * (1+200) | 1 … 2 | 20 … 22 |
| 6 | drying | max. 40 |
1 – 3 dark-room processing
Comment
If you want to receive a very fine graininess we suggest the developer, mentioned down, but you have to expect a little bit less in sensitivity, too. If you are depending to the real sensitivity and a normal fine graininess we suggest you to process according to ORWO Instruction no. 1183 with the phenidone-developer. Depending on the processing equipment, deviations of time and temperature are practicable, if a comparable processing quality is guaranteed. Lower temperatures for spray-washing are practicable too, if the washing time is extended (i.e.30 … 40 % at 12 …15°C).
Formulae
Developer
| Water | 750 ml |
| Pentasodiumtriphospate * | 2,00 g |
| Metol * | 1,50 g |
| Sodium sulphite | 75,00 g |
| Hydroquinone * | 1,50 g |
| Sodium tetraborate 10 hydrate | 4,50 g |
| Potassium bromide | 0,80 g |
| …fill up water to | 1 litre |
| pH – value | 9,1 ± 0,1 |
* Explanations
| Pentasodiumtriphosphate | Anticalcium agent based on polyphosphate |
| Hydroquinone | Developing agent |
| Metol | Developing agent (monomethyle-p-aminophenol sulphate) |
| F 905 | Calbe Wetting agent |
| A 300 | Calbe Rapid fixing based on ammonium thiosulphate |
| RF 90 | Calbe Rapid fixing based on ammonium thiosulphate |
We reserve the right to change the ORWO-Instruction no. 2182 to improve the characteristics of film and perfect the safety of processing bathes.
FILMOTEC GmbH
Ortsteil Wolfen
ChemiePark Bitterfeld Wolfen
Areal A, Röntgenstraße Geb. 415
06766 Bitterfeld-Wolfen
Tel.: +49 (0) – 3494 – 36 96 80
Fax: +49 (0) – 3494 – 36 96 82
filmotec@filmotec.de
