..and also protects the front lens element from damageJustin said:One of these... Shades the lens from harsh light.
SDK^ said:..and also protects the front lens element from damage![]()
robmiller said:Ah, I get it—it's because the aspect ratio of sensors/film is wider than it is tall, making the angle of view greater in the horizontal than the vertical. Makes sense.
alexisonfire said:Yeah, petals are used for short focal lengths so that you can't see the edge of the hood in the corners of the photo i think.
xolotl said:the 70-200 2.8 is a short focal length?
Its a more efficient design of hood as the design accounts for the rectangular shape of the sensor. It gives a greater protection against flare than a circular hood.
FranchiseJuan said:Actually one of the reasons for a petal style lens hood is so you can reach in and turn a circular polariser.
Tonks said:Also on lenses where the front element rotates when focusing, a petal type would be a pain in the backside so a round hood would be the better hood...
woodsy2k said:Cheaper lenses do this, the more expensive, better ones tend not too. meaning that the petal ones are infact the better design.
woodsy2k said:Nearly all lenses dont rotate when zooming I thought? It's the focusing that tonks was talking about? or are we barking up different trees![]()