which lens hood for 55-300?

having looked at my duxford photos again, I've come to the conclusion that I didn't help myself when I was shooting towards the sun and had no hood on my lens.

my DA L 55-300 never came with a hood when I bought it (white box item off ebay) so what kind of hood should I get?

a straight circular one? or a petal type? or even a rubber collapsible 3 position type?

You could always buy the Pentax hood for the lens, but failing that a Chinese copy from eBay or Amazon.

http://www.srsmicrosystems.co.uk/2287/Pentax-PH-RBG-58mm-Lens-Hood.html

http://www.amazon.co.uk/JJC-replacement-PENTAX-DA-55-300mm-4-0-5-8/dp/B003WWBE76...=sr_1_1?ie=UTF8&qid=1375956613&sr=8-1&keywords=Pentax+lens+Hood+55-300mm

Just get the original Pentax hood (silly price) or the JJC replacement version, which is not quite the same quality but locks in place nicely and is better value for money (imo).

Edit: reply crossed with above.

got a third party one. no way I'm paying £40+ for a lens hood