How to remove shadows on dslr sony a5100

May 28, 2020
Hello everyone!
Two weeks ago I bought a Sony a5100 with 16-50 lenses (Model SELP1650), but when I started filming I noticed shadows around the image.
I researched forums about the problem, and saw that it could be an effect called 'vignette'.
I shoot with the setting 1/80 F5.6 and ISO around 400 to 600 (with 3 lamps of 60w in a room of 3 meters by 3 meters)
and I was recommended to set the camera to 1/60 F11 and a higher ISO (around 2000)
I put this setting, but with the ISO increased, the image is very saturated.
Is there any other solution to remove these shadows?
The camera is very good, and the focus is fast, but this problem with "shadows" (or "vignettes") is putting an end to my filming.

The image below is part of a shot on a white wall
Configurations: 1/80 F5.6 and ISO around 400 to 600 (with 3 60w lamps in a 3 meter by 3 meter room)



Apr 1, 2020
Issues like this are mostly due to lens construction.
As you saw, a smaller aperture fixes some of the issues, but at the expense of ISO noise. If you cant live with the settings change, the only real option for video work is a different lens.
If you are doing stills, post processing should have the option for "Peripheral Illumination" which will negate these effects. Certain photo editing suites can apply these settings automatically.
Dec 16, 2019
What are you using to edit your photos? In Lightroom it has a profile for this lens that can make adjustments to negate this effect. That might be enough, but you can lighten the edges.

This is one of the things reviewers look for when evaluating lenses.