Originally posted by dlacouture If you are talking about the three spots we can see in the unfocused lights, then I'd bet they are located on the front lens : you can see them repeated in many unfocused lights, always at the same location...
Originally posted by NaClH2O Jeff I have the same type of artifact in the same type of situation (unfocused christmas lights) with my K20D and the Tamron 28-75 f/2.8. I was getting an interesting effect looking thru the viewfinder on the unfocused lights (rayed halos on the lights) so I took a few shots. Unfortunately no rayed halos but similar artifacts to what you've got. Unfortunately I'm at work but I'll dig them up tonite when I get home. Don't think it's sensor related because same patterns repeat themselves throughout the shot.
NaCl(it's a terrible flaw! you have to take completely unfocused shots of lights to see it tho!
)H2O
I'm thrilled if that's the case and it would explain a lot. Especially since I cannot see this in a Focused shot, at any aperture, nor in any other situation. It certainly doesn't follow the sting of pearls pattern in any way.
Now my only complaint would be that I cannot auto focus in total darkness on my black dog
Oh wait.... he's not even there.....