DPReview.com is closing April 10th - Find out more

canon 55-250 IS blur edge, anyone?

Started Jan 15, 2009 | Discussions thread
OP jongpl Junior Member • Posts: 39
Re: canon 55-250 IS blur edge, anyone?

I did try to shoot a flat roof and its seems ok even at 250mm with minor sharpness falloff at the edge. But I also got quite a lot of shots with the edge blur at wider angle, like the second sample that I have post the roof is blurer on the canon one, even the canon is shot with 154mm f8 and the sigma is shot at 168mm f5.6. I also notice that the right side(top) is more blur than the left side(bottom).

These is another comparison:

canon 84mm f10
center

top

full shot

sigma 86mm f8
center

top

full shot

This picture from sigma is sharp from center to any border even at f8

Post (hide subjects) Posted by
Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark MMy threads
Color scheme? Blue / Yellow