twowinds:

I'm just starting with this, and I threw those on to protect the lenses from my clumsiness at this point. They aren't on there for any particular reason beyond that.

Ok, opened up to the sensor, gentle blast of air, and sample pics are looking good, no lines!

Appears to have been a hair.

Thanks for all the comments and suggestions!

Now to go clean up a couple photos with the hair in them!

Wow, rts, thanks for the extended suggestions!

In the first picture, there is ghosting from combining pictures, so that is probably why you see another line (I think I cleaned up only the moon ghosting a bit). Additionally, I believe the vignetting is from post-processing, everything was pretty uniform in the original RAWs.

As I said, I think I see the artifact with multiple lenses, I still need to confirm that, so inside the camera is probably the most likely scenario.

Thanks again and I'll report back what I find inside.

Checked out the one lens, no issue with the lens itself, changed lenses and I think I see the artifact still (hard to see on the viewscreen, didn't have time to transfer to computer to see better).

Will try the sensor-cleaning function and hope that works before this newbie goes poking around inside.

Got it, use it, like it!

Will do, thanks!

I posted another picture with the same artifact.

Both were taken with the same lens, so maybe a hair on the lens (or under the nd filter) is the culprit. I'll check that and take some similar sky pictures with a different lens.

(Note that this is not in every photo)

Thanks for the feedback!

Hi, hoping someone can help me figure out why I sometimes see a faint curved line in some photographs. I thought it might have something to do with a lens hood, but I've seen it without that. In the example I'm posting, the curved line is to the left of the moon from top to bottom.

Thanks!

Example #2