We wanted a buoyancy aid for our four-year old grandson: he's a big lad and this sounded like his size: and - it fitted him like a glove, he was delighted with his appearance, and he couldn't wait to get to a boat to try it out! With the Helly-Hanson name behind it, it has ticked all our boxes, even though it hasn't yet got wet.
Have just got the 0.45 w/a attachment: yes, the screw thread is fiddly to fit, but that's just like the filter, just take care. The vignetting is very slight, and only when my (bog-standard) 18-55 Canon lens (on Canon D350) is right on the 18 mark - by the time it is zoomed out to about 20mm the picture is unaffected, and all the way to 55. Comparing with my old film Canon Rebel with 19-30 zoom, I would say the pic is almost the equivalent at the max wide-angle on each. I haven't enlarged any prints yet, but for £10, instead of £350 plus, I have a wide-angle lens again - and there was no way I would be able to spend on a real one. Remember, a digital 18mm lens is only giving you the field of view of an old 28mm, which is not very wide when you get down to it. By the way, the math. is interesting: an 18mm digital lens, x 1.6 to film equivalent, x 0.45 converter = ?? Does anyone out there know how to square this circle?
Taken with Michael Lewis's previous book, Liar's Poker, which showed how young (mainly) men get into the banking machine, this book gives a clear understanding of how the system works, and why there are the huge rewards: the sheer futility and uselessness of most of the global investment banking system becomes apparent.
