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As for the predictions of the demise of slide film, I just got back from my local camera store (pretty much the only place in town that carries a wide assortment of film). He had just started carrying Lomography film. Among the various offerings was a 200 speed transparency film; it is available for both 35mm and 120. As neither Fuji nor Agfa appear to currently have any slide film at that speed, this would seem to be an entirely new film.
A stroll to a camera store and finding heaps of film there is not a reflection of global useage of a niche/specialist film that has been declining since 2000, and which decline is now at a critical level. I can visit camera stores here where I am and only two have a huge assortment of film, but
"not much of it is moving" (quote from my last visit Monday this week). It is the global market (or lack of it) for E6 take-up that is shifting its availability over time, as witness the progressive culling of several films in Fuji's lineup 2 years ago. I suspect a further cull is on the cards next July. The reason for E6 slipping away is because so many photographers have not embraced its potential for
printing, especialling during the long-defunct Ilfochrome Classic era when printing from all transparencies was the only printing done — C41 was never seen at pro-level labs, it was all Velvia and a smattering of Provia. I am still printing from Velvia, almost continuously since first taking it up that film in 1994. We're back to good ol' RA-4 now and the results are better than Ilfochrome Classic with much finer control.
Now, as for 200iso, Provia and Velvia 100f and 100 emulsions respectively can be very satisfactorily exposed at EI200++ (up to 800 for Provia) in competent hands, and provided exposure is moderated along each film's ideal matrix to give predictable results. The market definitely isn't screaming out for high speed transparency film, but Provia 400X (useful right up to EI1600) is still available as legacy stock, though it is expensive.
Lomography, as a boutique player, does not make its own film. It is sourced from Fuji to Lomography's pallete specifications. That is the same for Agfa with its Precisa range (Provia).