The films are panchromatic and super-panchromatic, but that's still not 'an orange filter already built in'. It only means that they are very sensitive to red light, more so than some standard panchromatic films. ISO 50 and 125 indeed sounds perfect for 80 and 400S.
Let's take a look at the Rollei films, from a point of their infrared ranges. It's easy to say that most of the Rollei films are Aviphot Pan 80 or 200, or Kentmere 100 and 400 (RPX). However, there's a lot more going on, and it's pretty interesting, at least for me.
RPX 25: Aviphot Pan 80 / on...
While Ilford's Phoenix II is supposedly an improved emulsion with a wider latitude, many prefer the bold colors of the original, when exposed correctly (125), especially in 120 format.
As far as I know, stocks last as long as they do from now, so grab Phoenix I until you can. Phoenix II is also...
Sounds great, until you look at the costs. I don't think a roll could be at this price if the film had to be produced both in Italy and post-Brexit UK, only to be shipped to Germany for wholesale.
We've been over this. Nobody knows what percentage of the work has to be done by Ferrania to qualify for the made in Italy part, but maybe they package it. Also, kind of strange that Ferrania couldn't produce any P80 or P33 for a long time, yet the Rollei is always back in stock. And if you...
Quickly, to the old thread on P&R: Oh no yet another B&W film
My point: Most mystery films are hardly mysteries. Agfa Aviphot variants, Tasma or Kodak traffic or aero surveillance films, experimental coatings from Inoviscoat/Filmotec. ORWO technical films (sound, X-ray, duplicate, leader, etc)...
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