I use the cheapest circular rubber hood with, or without, a step-up ring
which generates no vignetting with the fixed focal length lens in
question. When used with a zoom lens I ensure that there is no
vignetting at the widest angle of zoom.
For example: The Fujifilm 23/1.4 and 56/1.2 lenses are both 62mm filter
threads. I use a 62mm to 77mm step up ring to mount a wide angle 77mm
rubber hood which generates no vignetting with either lens. The 56mm
lens comes with a dedicated circular push and twist on hood which I
ignore. The 23mm comes with a dedicated tulip shaped hood which
generates vignetting if the hood is not rotated properly in place. This
23mm vignetting problem is a pain in the donkey. The hood on the 62mm to
77mm step up ring does not work on the Fujifilm 16mm-55mm/ 2.8 zoom [a
77mm thread] at any wider than 23mm. The zoom's dedicated tulip shaped
hood has the same vignetting problem as the 23mm when not rotated
properly into place.
I have a hard time thinking that train window glass per se can generate
a vignetting problem. Your thru the window snowscape image shows almost
equal lighting degradation at all four corners which tells me that
something physical, like a lens hood, prevented all of the necessary
light from reaching the camera's sensor.
Is the entire inner surface of the lens hood an equal degree of matt
blackness / smoothness absent which incoming light might be distorted
before passing through the lens. I did read about that issue several
years ago in response to a question about lighting tricks playing by the
inner surfaces of lens hoods!
jh
On 2018-03-14 9:24 PM, Tina Manley wrote:
I had the 24-90 SL lens hood on the lens and pressed it up against the
window which usually gets rid of reflections and weird window stuff. It
worked fine in Norway but didn't work on the Swedish trains for some
reason. I'm thinking they must have had a polarizing film between the
layers of glass. What kind of lens hood do you use?
Thanks,
Tina
On Wed, Mar 14, 2018 at 5:11 PM, John Hudson <OM4T@xxxxxxxxxxx> wrote:
Circular screw-on or clamp-on lens hood not designed for the camera lens
being used for the image in question. I have experienced the exact same
vignetting myself.
jh
On 2018-03-14 7:39 PM, Tina Manley wrote:
PESO:
I'm running into a problem with some of the photos that I took from
train windows in Sweden. I didn't notice it so much in Norway and I'm not
sure why it would be different in Sweden, but most of the photos taken
through the train window show a lot of vignetting:
http://www.pbase.com/image/167141413
I can get only around it by cropping a lot. Any lightening that I try to
do just makes it look uneven. It is not dependent on the camera or lens.
I get the same thing with the M240 and 35/2.
Any ideas?
Thanks,
Tina
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