There's several good options (rectilinear and fisheye), but no need to stick below f8 for video, you aren't worried about diffraction at that level, you aren't pixel peeping and everything is moving anyway.that route leads to the slrmagic 8mm as a solution....set at hyperfocal....at f8. I'd really like to see that comparison...the olympus 9mm and the slrmagic. I'd bet it's close. That would give preference to size.The video quality is absolutely fine, it has the same sensor as the GH4 after all. Bitrate might be a little low, but that does have advantages too.I think this is what I'll do with this cam....
...humorous video too...but his video does show that the 1080p quality is good enough esp if 4k is resized to 1080.
I use mine with several lenses, you'll have seen it with an 800/5.6 Nikkor a few times, but it also works well with a 7.5mm Samyang, great combination and IMHO better than the body cap. For body cap prices you can get a 7Artisans 7.5mm lens, too. That gets you aperture control, which is useful for video since you can't really fit filters to fisheye lenses.
The only downside to smaller apertures is that because the Z Cam E-1 doesn't have sensor cleaning and seems to be a very dusty camera, the sensor gets very dirty easily and that shows up at small apertures.


