Reviews
Width without compromise
As with most things from K&F, this lens strikes a nice balance between price and quality and makes a perfect addition to the Action 4 and 5 - I use both - kitbag for those times when standard FOV just isn't wide enough.This does come with caveats however, due to the width of the FOV, even using wide angle mode on the camera, significant fishbowl is visible on the camera viewfinder, something that can be fixed in post and is by no means a deal breaker.The lens is sharp at the centre though with some falloff at the edges, but again, too minimal to be considered a flaw, at least in my book.It is provided with a silicon top and bottom carry case and it's just a matter of twisting it on the camera when you want to use it, after removing the existing lens of course as, despite what it says one the packaging, this is a lens, not a filter.If you are new to these cameras you may find removing the OEM lens difficult at first as they seem to come out of the factory screwed on super tight, just persevere as once the seal is broken it should screw off quite easily in future.
19/12/2025


