Orwo introduces a new film WOLFEN NP100

Raghu Kuvempunagar · May 17, 2022

markjwyatt said:
"WOLFEN NP100 differs from WOLFEN UN54 in that it has an additional dyed antihalation layer. This layer is positioned between the base material and the emulsion layer and has the task of preventing the formation of a reflection halo. This improves image sharpness."

This may be the only difference, and it could be significant.

Spectral response of NP100 is very different from that of UN54 going by the datasheet.

markjwyatt · May 17, 2022

Raghu Kuvempunagar said:
Spectral response of NP100 is very different from that of UN54 going by the datasheet.

Could that be related to the anti-halation layer being dyed?

AgX · May 17, 2022

markjwyatt · May 17, 2022

Raghu Kuvempunagar said:
Spectral response of NP100 is very different from that of UN54 going by the datasheet.

It is actually not that different. Mainly the NP100 appears to have extended red sensitivity, and maybe a little lower sensitivity parts of the the Y-G region, but the shapes are very similar (high B, dip rise to Y-G [faster in NP100], rise in R, then drop-off [extended in NP100]. I would say the whole UN54 curve is shifted to the blue more ( or the NP100 shifted towards the red). Still wonder (regardless of AgX's long detailed explanation to the contrary ) whether the dyed anti-halation layer may not cause that shift by absorbing some reflected light (maybe B). But given its position under the emulsion, it may be too late to have much if any effect.

darkroommike · May 20, 2022

Europan said:
Steel canisters is proof of ignorance, at least to me. They are made of aluminium.

Those aluminum cannisters must be unique, 35mm cartridges are almost exclusively made of steel, my magnet says so. I think the confusion is the term "cannister". In the USA the thing a film is loaded into is a cartridge or a cassette or "magazine" (if you are a Kodak "snap-cap"). A cannister is a container that the cartridge is placed into.

AgX · May 20, 2022

And these aluminium cannisters are long gone...

Arcadia4 · May 20, 2022

AgX said:
And these aluminium cannisters are long gone...

Well theres been a recent revival. Lomography is packaging some of its films in aluminium cannisters, those which are in gift focussed packaging e.g ‘analogue quartet’. Coincidentally these are films coated by inoviscoat/orwo, although the cassettes are plastic rather than metal.

AgX · May 20, 2022

As Filmotec is going the Orwo-retro route at the moment, they hardly can put their in type 135 films in metal cassettes.

cmacd123 · May 20, 2022

AgX said:
As Filmotec is going the Orwo-retro route at the moment, they hardly can put their in type 135 films in metal cassettes.

Old ORWO tended to use Plastic Scew Cap Cassettes, BUT it is hard to put a DX code on those. as far as the film cans, I do recall that several brands used a Aluminum, or a steel or aluminum outer film can. Last Aluminum film CASSETTE I recall were some from Ilford with 1960-ish expiry dates. those the end caps were held on by a paper label.

AgX · May 20, 2022

cmacd123 said:
Old ORWO tended to use Plastic Scew Cap Cassettes.

I do not know one metal cassette from old Orwo.

Europan · May 25, 2022

Thanks for the clarification.

MattKing · May 27, 2022

Some posts moved to the Orwo colour film "teaser" thread, which now resides in the Colour Film sub-forum

cmacd123 · Sep 17, 2022

well, the ORWO folks mentioned on facebook that they are "sold Out" of 16mm and 35mm NP54 Movie film... https://www.orwo.shop/collections/motion-picture-films

And no mention of N74 or N75. NP54 as 36 exp rolls is on "Pre-order."

AgX · Sep 18, 2022

Europan said:
They are made of aluminium.

I do not know af any currently made still film canisters of any metal.
(Except for a Lomography special edition packaging.)

MattKing · Sep 18, 2022

AgX said:
I do not know af any currently made still film canisters of any metal.
(Except for a Lomography special edition packaging.)

There is confusion in this thread between 35mm cassettes and the cannisters that the cassettes often come in.

AgX · Sep 18, 2022

Yes, but at type 135 cassettes or similar, there are some from Plastic, some from Brass and the majority from Steel. None from Aluminium

foc · Sep 18, 2022

My understanding is film cassettes are these,

And film canisters are these,

AgX · Sep 18, 2022

Terminology changed over time, but that is the terminolgy used at the industry and here at Photrio.

jtk · Sep 18, 2022

MattKing said:
There is confusion in this thread between 35mm cassettes and the cannisters that the cassettes often come in.

That is inevitable when Lomo langweege takes over.

MattKing · Sep 18, 2022

jtk said:
That is inevitable when Lomo langweege takes over.

Or when there are people from the entire globe here, whose first languages cover a wide range, and who are depending on various translation utilities whose ability to deal with nomenclature vary.
Ever been confused when someone from England - who theoretically shares the same language - refers to a 4x5 film holder as a "double dark slide"?

AgX · Sep 18, 2022

jtk said:
That is inevitable when Lomo langweege takes over.

Even before the Lomography founders were even born, the cassettes were called cartridges or in German Patronen, by the manufacturers...

cmacd123 · Sep 18, 2022

AgX said:
Even before the Lomography founders were even born, the cassettes were called cartridges or in German Patronen, by the manufacturers...

or in some cases "Magazines" I belive that was the term Kodak USA used before about 1950. the Kodak Snap Cap empty cassettes were called Magazines. even in english there are Australian, NZ, British, Canadian, American, and Indian dialects - all of which have variations.

Klaus_H · Oct 9, 2022

Something is happening at Filmotec.
There is a new website. The company is looking for new employees.

Inoviscoat is also revamping its website.
It seems that a new era is really beginning in Wolfen and Mohnheim.

The ORWO shop lists now 100ft UN54 again.

markjwyatt · Oct 9, 2022

Klaus_H said:
Something is happening at Filmotec.
There is a new website. The company is looking for new employees.

Inoviscoat is also revamping its website.
It seems that a new era is really beginning in Wolfen and Mohnheim.

The ORWO shop lists now 100ft UN54 again.

ser gut (hoffenlich)!

brbo · Oct 10, 2022

{Moderator's Edit: We have a perfectly useful thread for CatLabs complaints. Let's keep them there}

Datasheet for NP100.
If you can't read German, they have one in English as well.

Orwo introduces a new film WOLFEN NP100

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