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Maske - Make-up Artist or Make-up Designer ?

Make-Up Artist

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Aufnahmeleitung - Executive Producer or rather Director of Photography?

Executive Producer, definitly not DP

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Kamera - (only) Cinematographer ?

If there is only one person credited or one person highlighted within a feature film, I'd call it DP, else Cinematographer

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Regieassistenz - ?

... not listed in DVDP: [First, second, ...] assistant director

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Garderobe - ? (not Costume Designer!)

... not listed in DVDP: Costumer

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Redaktion - ?

Don't know exactly, but I think it depends on the type of production.
For a TV production it is some sort of producer; for a documentary it is some sort of author - but not listed with DVDP...

Quoting Duncan MacLeod:

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Aufnahmeleitung - Executive Producer or rather Director of Photography?

Or neither? Could be the equivalent of a "Production Supervisor", and that wouldn't qualify for a credit.

We checked the credits in detail and here some more explanations...

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Aufnahmeleitung - Executive Producer or rather Director of Photography?

neither, nor: some kind of Line Producer, Unit Producer, Production Supervisor, ...

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Kamera - (only) Cinematographer ?

There are two people listed (the first with a significantly larger font): I'd list the first as DP and the second as Cinematographer.

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Redaktion - ?

This is a TV production for a large TV station. This people are the financially in charge producers - I'll list them as producers.