Lens Hood
Oct 9, 2015 17:45:41 #
Just traded/up graded my lens set to include a 28-135 Canon lens, 72mm. When checking out lens hoods I see it is to use a tulip type hood. Simple question, why is this?
Greg
Greg
Oct 9, 2015 18:02:28 #
I'll throw out my thoughts. . . because you use a Canon. It doesn't have to make sense. Nikon is quality, it's like a tool that was made for the serious photographer. Canon, always trying to make the grade, does stuff like "tulip lens hood" to make it sound . . . special. Just my thought on it. ;)
Oct 9, 2015 18:15:16 #
Each of the current Nikon lenses I have purchased in the last year and a half has had the same kind of Tulip hood. I don't think either quality or marketing are the issues.
Oct 9, 2015 18:16:13 #
CLF wrote:
Just traded/up graded my lens set to include a 28-135 Canon lens, 72mm. When checking out lens hoods I see it is to use a tulip type hood. Simple question, why is this?
Greg
Greg
Because a round lens hood would vignette the sides.
Oct 9, 2015 18:21:10 #
Oct 9, 2015 18:27:00 #
Oct 9, 2015 19:22:26 #
mwsilvers
Loc: Central New Jersey
WmLeeGriffin wrote:
I'll throw out my thoughts. . . because you use a Canon. It doesn't have to make sense. Nikon is quality, it's like a tool that was made for the serious photographer. Canon, always trying to make the grade, does stuff like "tulip lens hood" to make it sound . . . special. Just my thought on it. ;)
That would make sense if you know what you were talking about. In this case you don't. I'm guessing you were being a bit tongue in cheek, but there are excellent reasons for the tulip style hood.
"The shape of a lens hood can vary from a plain cylindrical or conical section (much like a lamp shade) to a more complex shape, sometimes called a petal, tulip, or flower hood. These more complex shapes take into account the final image's shape and aspect ratio.This allows the lens hood to block stray light with the longer portions of the lens hood, while allowing more light into the corners of the image through the shorter portions of the hood, thereby reducing the amount of mechanical vignetting (reduction of light around the periphery) in the final image"
Oct 9, 2015 19:53:38 #
CLF wrote:
Just traded/up graded my lens set to include a 28-135 Canon lens, 72mm. When checking out lens hoods I see it is to use a tulip type hood. Simple question, why is this?
Greg
Greg
I think it's for wide to telephoto zoom lenses to avoid vignetting at the wide focal lengths.
Oct 9, 2015 21:21:48 #
WmLeeGriffin wrote:
I'll throw out my thoughts. . . because you use a Canon. It doesn't have to make sense. Nikon is quality, it's like a tool that was made for the serious photographer. Canon, always trying to make the grade, does stuff like "tulip lens hood" to make it sound . . . special. Just my thought on it. ;)
right, give me a break. YADA, YADA, YADA, YADA............
Oct 9, 2015 22:37:48 #
WmLeeGriffin wrote:
I'll throw out my thoughts. . . because you use a Canon. It doesn't have to make sense. Nikon is quality, it's like a tool that was made for the serious photographer. Canon, always trying to make the grade, does stuff like "tulip lens hood" to make it sound . . . special. Just my thought on it. ;)
Seems like the Canonites have no sense of humor.
Oct 9, 2015 22:56:39 #
jethro779 wrote:
Seems like the Canonites have no sense of humor.
You seemed so serious. Sorry, I missed it. My bad!
Oct 10, 2015 04:14:38 #
I wrote an article and made a sketch for my camera club's newsletter on the topic.
Lens hoods are designed to block stray light coming in from outside of the frame to prevent flare. The petal shaped design allows the hood to block as much stray light as possible without causing darkening in the corners. The shorter petals on the left and right sides have a convex curvature but when viewed at the angle of view of the lens form a straight line.
Lens hoods are designed to block stray light coming in from outside of the frame to prevent flare. The petal shaped design allows the hood to block as much stray light as possible without causing darkening in the corners. The shorter petals on the left and right sides have a convex curvature but when viewed at the angle of view of the lens form a straight line.
Oct 10, 2015 05:54:55 #
CLF wrote:
Just traded/up graded my lens set to include a 28-135 Canon lens, 72mm. When checking out lens hoods I see it is to use a tulip type hood. Simple question, why is this?
Greg
Greg
The hoods are matched to the lens.
The cut outs to make it look like a tulip are for shooting at the wide setting of the lens so the hood does not cause vignetting. Otherwise if the hood were straight all around it would have to be as short as the cutout portion of the hood and not do as much good as the tulip pattern. Put some tape on the openings set to the wide setting and likely you will see the tape vignetting the corners of the photo.
Oct 10, 2015 06:32:58 #
Oct 10, 2015 06:36:35 #
WmLeeGriffin wrote:
Yeah Baby !!I'll throw out my thoughts. . . because you use a Canon. It doesn't have to make sense. Nikon is quality, it's like a tool that was made for the serious photographer. Canon, always trying to make the grade, does stuff like "tulip lens hood" to make it sound . . . special. Just my thought on it. ;)
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