Orwo NP 55 for reversal - HELP!

[walter]

Does somebody know if the ORWO NP 55 b/w cine film type can be processed to positive with reversal chemistry? Is the film on clear layer or on grey layer?
Thanks for information
Walter

[Carlos 8mm]

Hi Walter,
as far as I know the only one B &W negative stock from ORWO which can be proccesed as reversal is ORWO UN 54 ISO 100 stock.
Kahl Film and Wittner-K sells this stock in Super 8 format.

Check this info:

http://www.filmotec.de/English_Site/Pro ... ducts.html

BTW, what kind of cine fim is ORWO NP 55 (ISO Rate, etc.) :?:

Saludos,

Carlos.

[aj]

I thought using BW Reversal chemistry all BW film can be developed as positive.

The difference is in other properties of the emulsion. Negative intended film is not very suitable for frequent projection scratch resistance is not worked on in the design. And such.

[christoph]

I thought using BW Reversal chemistry all BW film can be developed as positive.

The difference is in other properties of the emulsion. Negative intended film is not very suitable for frequent projection scratch resistance is not worked on in the design. And such.

pretty much correct, some negative stocks have a high base density, making up for a rather muddy projection.. .. but it will most likely render a usable image...

++ christoph ++

[Ludwig Draser]

Hello.
Orwo NP 55 is a very old material. It is not designed for reversal processing.
It has a generally low contrasty picture and a little red layer after processing.
I think, you need some time for testing. Be sure, that ph from fixer is low enough. (PH 4,5) Otherwise picture will not clear enough.
Kindly regards
Ludwig Draser

[aj]

ORWO UN 54 16 mm 122 m / 400 ft.
( Negativmaterial ) ( Perf. 1R / 2R )
Verarbeitung zu Schwarz-Weiss Umkehr

http://www.andecfilm.de/html/material16.htm

Andec even refers to developing a negative film as reversal