I've been experiencing this issue on my Fujifilm x100, every artificial light has a strange blue / rainbow glare. It is the first time I notice something like this and I'm pretty sure it doesn't happen with my other camera (X-T4).

I know the x100 is a pretty old one, but is there a way to fix this issue?

enter image description here

  • \$\begingroup\$ Does it change when the ND filter is moved in and out? \$\endgroup\$
    – BobT
    Feb 25 at 18:29

1 Answer 1


It looks like the lens is greasy. Probably some condensation on the lens.

If it is condensation, it could be on the interior of the lens. See if there is a lot of humidity, or if your camera has moved from cold to hot or vice versa.

One way to fix condensation is to leave the camera in a warm dry place for a couple of hours. Do not leave it under direct sunlight.

  • \$\begingroup\$ I might add it may even be hard to notice because not a lot of dirt is required to have this when lights are so bright. \$\endgroup\$ Feb 24 at 16:50
  • \$\begingroup\$ Often people will attempt to clean fingerprints off a lens' surface with a dry cloth. "Cleaning" the exterior of the lens with a dry microfiber cloth won't help. All one does is spread the oily substance evenly over the surface of the lens. One needs to use a few drops of lens cleaning fluid on a clean section of the cloth to clean the surface, then use a clean dry section of the cloth to dry it. \$\endgroup\$
    – Michael C
    Feb 28 at 20:12

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.