As per comment in the Spektrafilm comment, here is some feedback on the Spektrafilm documentation. (Please note, as bit of background, I have excellent (scientific) reading English skills, but I am not a native speaker).
While in general the documentation is excellent and technical very good. Some of the sentences and sub-sentences sometime get me a bit lost.
Out of the box, film exposure behaves like leaving the enlarger on for a fixed time: expose the film more and the print comes out brighter. Switch on auto print exposure and it stops doing that, because print exposure now compensates automatically ā which is what a real printer does, aiming for consistent print density however the negative was exposed.
I donāt really get the sentenceā¦ Switch on auto print exposureā¦ what exactly is automated?
A few print stocks respond only to a very narrow slice of the spectrum ā the duplicating and release print films (Kodak 2302, 2383, 2393) rather than the ordinary papers
Are these Kodak films examples? There seems to be a word missing here?
Film stock, print paper and film format are always visible at the top.
At the top of what? The top of module?
With auto print exposure on this no longer changes overall brightness (see usage above), but it still changes color and grain because it moves the scene to a different part of the filmās response.
I think: a comma should be added With auto print exposure on, this no longer changes overall
Look at the developed negative or slide directly instead of printing it. Switches on by itself for slide and reversal stocks and off again for negative stocks; you can override it either way afterward.
I think you mean: Switches on by default for slide and reversal stocksā¦
I now sounds as it the the switches is a person 
Shooting the film at a speed other than the box says, then compensating in development, in stops.
I donāt really get it, which box?
How long the film is developed, in minutes. Only a few black & white stocks were measured at more than one time
I think you mean Only a few black & white stocks have multiple measurement for different development times. The sentence can also be interpreted that I measured multiple times, but as the same time.
In a real developing tank the chemistry gets locally used up where the film was most heavily exposed.
I think you mean: In a real developing tank the chemicals gets locally ** depleted** where the film was most heavily exposed.
So far my first comments on the documentation. But overall very very nice!! This seems a lotā¦ but it is mostly nit picking, I hope It is useful
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