WOLFEN DP31 - 36EXP - (EXPIRED 10/2024)
$6.00
In stock
Please note: This listing is for expired film sale ONLY, hence why the price is lower than the standard listing. If you would like fresh stock, you can find it HERE.
Results from expired stock cannot be guaranteed.
WOLFEN DP31 features a low ISO and a small exposure latitude, making it perfect for pinhole, portraits and street scene snaps. This black and white film navigates inter-tonal shifts with ease resulting in rich, low grain depictions with vibrant microcontrast.
WOLFEN DP31 is perfect for seasoned professionals as well as creative first time photographers. Particularly appropriate for those who like to take full manual control and experiment with flash photography, WOLFEN DP31 packs crushed shadows and super high contrast renderings, reminiscent of our favourite Film Noir classics.
Additional information
- Film type
- B&W
- ISO
- 8
- Exposures
- 36
- Pack
- 1
Data SheetData Sheet DP31
ORWO Duplicating Positive Film DP 31
Product description: ORWO duplicating positive film DP 31 serves as a film for the production of intermediate positives (master positives). Due to is panchromatic sensitisation this film can be used for duplicating from black & white negatives as well as from colour negatives producing well-balanced grey values referring to original colours. Special features of this film are the excellent resolving power and the extraordinary fine grain. Between the emulsion layer and the clear base is a new AHU-layer ( A nti H alation U nder layer), which will be uncoloured during the processing.
Base: Safety base, polyester, 125 µm, clear
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 |
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 = 1.6. Process as soon as possible.
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 : 0.70
Characteristic curve DP 31: Processing ORWO instruction 1182
Spectral sensitivity: For equal energy spectrum
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
