aroo said:
I bought my 55-250 for $199 on Amazon with an Xsi and 18-55 several years ago. The round (NOT petal) lens hood fits both lenses and causes a round solid vignette on the wide end of the kit lens.
A bent paper clip fits into an electrical outlet, too...just because something 'fits' doesn't mean it's the right fit. :

The
correct hood will not vignette. The 18-55 takes the EW-60c (the 'W' is for wide angle), the 55-250 takes the ET-60 (the 'T' is for...you guessed it...telephoto). I presume you used the ET-60 on your 18-55, and that's why you got vignetting. The EW-60c fits on the 55-250, also...and would be totally useless in terms of protection from flare.
CustomizedMacs.com said:
I do not know who to believe now.
Of course, you should believe the outfit trying to get you to buy their 3rd party hood, because the company that makes the lens clearly doesn't understand how to design a hood to match the lens they designed.
Sounds like you
really want a petal hood. It'll look so much cooler and fancier than the one designed by Canon, making you look like a cooler, fancier photographer. How you look is more important than the pictures you take, anyway. So please, just get the petal hood. Be sure to do a lot of focusing from close subjects to far ones, while people watch. You will want to call lots of attention to that petal hood as it rotates with the front element. Heck, maybe it won't even vignette when it does that. Also, I really like the convenience of the screw-on one the guy in the first video bought, too. You should get that exact one, because not only will you look like a better photographer, it'll be a lot easier than the pesky, reversible bayonet mount Canon has for that lens. </sarcasm>
Just get the Canon hood or a knockoff that looks like the Canon hood, mmmm'k?