These ROCK. Excellent upper body workout for no-fins. But I think they will rule for underwater photography and possibly spearfishing. They have an excellent gripping surface and are very flexible - perfect for making small corrective movements with minimal movement - if you get my drift. I think they'd be great for scubies too.
https://www.darkfingloves.com/surfing.shtml
https://www.darkfingloves.com/surfing.shtml