Nice, just seen them. Great to have 2 strobes and good arms! Any vignetting issues at wide end?
Not really that bad, just zooom in once and the vignetting is eliminated. Just that for my housing, I got to lock my zoom button as if i zoom in too much, it will hit the port, and will have a lens error, so I basically would set a custom setting with my camera with the appropriate focal length, then just use that fixed position through the whole dive. You're using it with a Ikelite or FIX?