Death Lens
Death Lens
Price: £30
deathlens.com
Available for: iPhone 4/4S/5/5S/5C/6
This one is used by a hefty roster of pros including Jed Anderson and Scott Stevens.. It’s a serious fisheye, and so is ideal for followcams and close-up stills – if not much else. You do need to download an app to get the best results when filming, but it’s free.