Cyan glow

[spointer]

I just bought a new camera, a Canon 50D. I'm extremely frustrated, because a lot of my pictures have a cyan glow around all my subjects. I've never had a problem like this with any other camera. What setting do I need to change?

My settings for this picture were:

f/4
1/125
ISO 400

I'd love any help I can get.

[Jim Poor]

That is Chromatic Aberration (CA) and is most likely a function of the lens rather than the camera. Try stopping down to f/8 and see if it gets better.

A lot of lenses of lower quality have a problem with CA.

Most of the good DAM programs and RAW converters have tools to deal with it too.

[OsmosisStudios]

Good LORD that's alot of CA. As in, "I dont think that lens is right" kind of CA.

[Murtasma]

What lens was that? I've never seen that much CA before I seriously think you have a defective lens.

[spointer]

The lens I was using is a Canon 28-90mm. I've never had a problem with it before, but the last few months it's been awful. I don't have a ton to spend, but what would be a good lens for a Canon 50D. I mostly do portrait photography, so I would like a lens that is great for close ups as well as distance.

Thanks for the help.

[dcclark]

Holy crap. Not normal!

Did you hit the lens on something? I would guess that an element might be out of position slightly, making the CA worse than usual.

[Quo Fan]

If the lens is still in warranty, send it in to get fixed.

[BK553]

It does look like that picture is massively zoomed in too though, so it may only be a couple pixels wide, which would be normal. But then again, that doesn't look normal.

[natek313]

Wow! That's the worst I've seen. I would definitely get your lens checked out by a Canon Service Center to see what they say. Like everyone has been saying, it's most likely your lens that is the issue.