Sensia- Provia 100 consumer version
Sensia II- Astia 100 consumer version
Sensia (new)- Provia 100F consumer version.
Whether the newer is Provia or Astia, no Idea. I haven't tried both films.
Ektachrome 64T filtered for daylight may be the best option...I am quite partial to E100G.
The same has happened at least with the two Kodachrome versions (KR, KRP) - the pro version was kept better, while the normal or amateur version was greenish to not turn magenta so badly (or fast). [Not exactly sure about which way the colors were, as this is hearsay anyway...]
Nowadays Fuji itself states different RMS granularity values for Astia 100F (7), Provia 100F (8) and Sensia 100 (10). So I guess it is a different film. Of course it could still be same as old Astia or Provia (without the F) or something like that. The RMS was same for those old versions. I believe this change happened in 2003, at the same time the Astia 100F was introduced.
Here you can see info on the emulsion codes and RMS values summarized (at least for both 100F films and current Sensia 100 they are the same as Fuji states on the data sheets): http://www.cacreeks.com/films.htm
I still used to think Sensia would be Astia, but I guess its not, at least not exactly same as the 100F version of Astia.
Well, at least Sensia 100 is completely different from Provia 100F. Just shoot them and you'll notice that Sensia 100 has greater latitude, particularly in highlights, and neutral, not so vivid colors but not dull either. This is just like Astia. Provia looks different.
Emulsion codes also suggest Sensia being a sibling to Astia; Astia is RAP and Sensia RA. On the other hand, Provia is RPP and Velvia RVP. The third P is probably for "professional" .
True... It made me think it could be the same emulsion as the old Astia 100 (without F), as it was coded RAP and the 100F version is RAPF. Sensia 100 used to be coded RD (Provia is/was RDP) back in mid 90's and I also have a finnish photo magazine from -96 with a slide film test, saying Provia 100 has exactly same granularity and colors as Sensia 100. So it would make perfect sense that the current Sensia is same base as the old Astia, given that the RMS for Astia 100 is also 10.
Here's the biggest reason why I like Sensia100 or Astia100: its latitude. When scanned, you can adjust curves to find details from highlights that seem quite blown out, and shadows are good as well. And, projecting the slides in a dark room will reveal this shadow detail even without any painful digital processing :D.
Here is another example. Lighted with more than one lamp:)
Also this tread is an Photo.net Astia tread:
Is there a particular reason you want to use transparency film, projection or ILFOCHROME for instance?