Tulip lens shade
Oct 7, 2014 16:39:33 #
Oct 7, 2014 16:42:49 #
RWR
Loc: La Mesa, CA
Ohicu wrote:
What is its function? Field of view, Sun angle or what?
The function of all lens hoods is to prevent indirect light from striking the front element.
Oct 7, 2014 16:46:28 #
RWR wrote:
The function of all lens hoods is to prevent indirect light from striking the front element.
That would be DIRECT sunlight.
And also to offer a certain degree of bump protection to the lens.
Oct 7, 2014 16:49:21 #
I think that the design of the "Tulip" is to provide maximum shade without interfering with the field of view, the horizontal field is much greater than the vertical field of view on a lens, so the tulip is deeper on the top than it is on the sides, if the sides were as deep as they are on the top they would be seen captured in the image.
At least that is my rationale for the tulip, I have an old hood for my old 35mm lens that predates the tulips and it is a rectangle with the sides extending much further away from the lens than the top and bottom of the shade.
At least that is my rationale for the tulip, I have an old hood for my old 35mm lens that predates the tulips and it is a rectangle with the sides extending much further away from the lens than the top and bottom of the shade.
Oct 7, 2014 16:49:34 #
Let's not forget that if it has a funky shape, you are going to think it is something special. Marketing does enter into the equation.
Oct 7, 2014 16:51:52 #
RWR
Loc: La Mesa, CA
MT Shooter wrote:
That would be DIRECT sunlight.
And also to offer a certain degree of bump protection to the lens.
And also to offer a certain degree of bump protection to the lens.
Right. I was thinking "stray", but inadvertently wrote "direct."
Oct 7, 2014 16:56:36 #
MT Shooter wrote:
That would be DIRECT sunlight.
And also to offer a certain degree of bump protection to the lens.
And also to offer a certain degree of bump protection to the lens.
I thought its primary purpose was to give Ken Rockwell something else to bellyache about.
Oct 7, 2014 16:59:09 #
PrairieSeasons wrote:
I thought its primary purpose was to give Ken Rockwell something else to bellyache about.
That's our entertainment factor bonus!
Oct 8, 2014 05:49:48 #
PrairieSeasons wrote:
I thought its primary purpose was to give Ken Rockwell something else to bellyache about.
:thumbup: :thumbup:
Oct 8, 2014 07:00:04 #
Oct 8, 2014 07:28:54 #
PrairieSeasons wrote:
I thought its primary purpose was to give Ken Rockwell something else to bellyache about.
:thumbup:
Tripods, too.
Oct 8, 2014 07:32:21 #
Ohicu wrote:
What is its function? Field of view, Sun angle or what?
Typically used on zooms; keeps vignetting to a minimum at various focal lengths.
Oct 8, 2014 08:25:11 #
wingclui44
Loc: CT USA
Ohicu wrote:
What is its function? Field of view, Sun angle or what?
I remember some one in our photo club said that it's for easy filter change with your hand with out taking off the shade. I don't know that's true, I don't have any experience with that because non of all my lenses has Tulip shade!
Oct 8, 2014 09:25:35 #
jpgto
Loc: North East Tennessee
sirlensalot wrote:
Reduces or possibly eliminates flare when shooting into the sun.
:thumbup: Thats what I was taught. My $0.02.
Oct 8, 2014 09:28:39 #
Pablo8
Loc: Nottingham UK.
The first part of a picture to suffer from 'Vignetting',with a circular lens-hood, will be the corners of the print. Therefore the shallowest part of a petal / tulip / lens hood, will be in those corners. Top and bottom of the petal/tulip hood, in a landscape orientation, will protrude the most.The lens-hoods for the Hasselblad (and Mamiya C33)are square, to match the square format that they use.
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