I'm not the only one who has had this idea, google "home made lens hood"
https://www.google.com/search?sourceid=chrome-psyapi2&ion=1&espv=2&ie=UTF-8&q=home%20made%20lens%20hood&oq=home%20made%20lens%20hood&aqs=chrome..69i57j0j69i64.5014j0j7
Larry Colen wrote:
Eric Weir wrote:
On Sep 30, 2016, at 3:10 PM, Paul Stenquist<[email protected]> wrote:
The bright spot should be shaped like the aperture. It's lens flare,
caused by light reflecting off internal parts of the lens. Use as
long a lens hood as you can without vignetting to minimize. Shooting
from under an umbrella held to "flag" the sun also helps. Finally,
the best lenses with excellent coatings offer more flare resistance
than cheaper lenses. Most Pentax lenses have excellent coating.
On Sep 30, 2016, at 3:14 PM, P.J. Alling<[email protected]>
wrote:
That is a symptom of lens flair, and it's caused by reflections
within the lens that design and coatings haven't been able to
completely eliminate. The fact that it's six sided means that your
lens has a six bladed aperture. To not have this type of flair, don't
shoot into bright light sources. Sorry not the advice you were
looking for. The other thing you can do with this type of lens flair
is make it part of your composition and just live with it. However on
a good note you have found one of the limits of your lens.
Thanks to both of you. The lens is the smc da 4-5.6 50-200 ed wr—I
think you recommended to me, Paul. I had a hood on but it was a short
soft rubber one. I’d very much like to have the new hd da 55-300mm
F4.5-6.3 ed palm wr re lens, but my body is a k-5, which doesn’t take
advantage of the capabilities of this lens. The lens and a minimally
qualifying body—k-3ii—together are beyond me at the moment.
If your bank account is more important to you than being stylish, you
could extend your lens hood. One possibility would be to take some
construction paper and tape it to the existing lens hood, following the
angle of it.
It might be worth also checking the angle of view at the widest point.
Another thing you could do is take a yogurt tub, put your lens at its
widest, look through the viewfinder with the open part of the tub facing
the lens. Move the tub until the edges of it disappear from view, that
is how far from the front of your lens it can be.
Now cut a hole in the base of the tub so that you can mount it to either
your lens hood, or your lens. You may want to spray paint the inside
flat black too.
--
Larry Colen [email protected] (postbox on min4est) http://red4est.com/lrc
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