Quick and dirty test of a Canon WD-H37C 0.7 X wide angle adapter on the Casio EX-F1. Just a quick indoor shot in my home office to show the different fields of view without and with the WD-H37C. A tiny big of vignetting in the corners, but quite usable and appears to be able to focus through the full zoom range. Requires stepping down from 62mm to the 37mm threads on the WD-H37C. I used two adapters, 62->52mm and 52-37mm. Because the EX-F1 limits the portion of the sensor used for HD video to just the center, this small wide angle lens (and probably other 37mm adapters) works extremely well in the HD mode, but is not usable for other video or photo modes that use the entire sensor. I already had the lens from use on my Canon HF10 so it was a nice surprise to see that I could use it on the EX-F1 if I need wide angle HD video.