Potential Problem with New Sigma 14-24 f2.8

Started 4 weeks ago | Discussions thread
ForumParentFirstPrevious
Flat view
pemongillo New Member • Posts: 1
Potential Problem with New Sigma 14-24 f2.8

Thinking about sending my new lens back to be checked out because of elongated stars in the upper right and mostly left corners at 100%. There seems to be no coma, but the elongation is annoying. I am talking at 14mm at f2.8-f4.0. Didn't really test it any higher. Exposure is 15 seconds, but even if it where star trails why would it only be in the corners? I am not new to astrophotography, but new to this lens. Opinions?

Thanks

ForumParentFirstPrevious
Flat view
ForumParentFirstPrevious
Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark MMy threads
Color scheme? Blue / Yellow