- Messages
- 2,247
- Name
- Brian
- Edit My Images
- Yes
I normally use Canon lenses but as part of "Black Friday" I saw an offer for the Sigma 8-16mm UWA lens for APS-C from one of the major UK retailers, so I jumped in.
I was extremely disappointed with the first example I received. Nothing seemed to be really sharp and I noticed that the focus indicator on the lens barrel frequently went beyond the infinity mark. The most strange thing was that viewing the EXIF information the “Focus Distance” parameter seemed to be 3.53 metres on many shots regardless of the subject. For comparison, the same parameter from a Canon lens shows a different value for almost every shot, which is what I'd expect.
I returned the lens to the shop and was given the option of a refund or returning it to Sigma for repair.
I opted for the latter, but the option later changed to a replacement lens, which I collected yesterday.
The results from the replacement are about the same as the original.
Images are lacking overall sharpness, and although the focus doesn't seem to go beyond infinity, out of 53 test shots I took yesterday the EXIF shows the “Focus Distance” to be 3.53 metres on every one, despite there being a variety of subjects.
I'm using a Canon 80D set to “Single Shot AF” with a single centre focus point, and I receive the focus OK indication before I fire the shutter. These are my usual settings.
I was going to do some more tests (like shooting in “Live View”) but I'm not very satisfied with the results so far and feel that the EXIF information is totally wrong.
As I said, maybe I'm making an unfair comparison, being used to Canon lenses, but I'm quite disappointed with the performance of this Sigma and I cannot understand the EXIF results..
I was extremely disappointed with the first example I received. Nothing seemed to be really sharp and I noticed that the focus indicator on the lens barrel frequently went beyond the infinity mark. The most strange thing was that viewing the EXIF information the “Focus Distance” parameter seemed to be 3.53 metres on many shots regardless of the subject. For comparison, the same parameter from a Canon lens shows a different value for almost every shot, which is what I'd expect.
I returned the lens to the shop and was given the option of a refund or returning it to Sigma for repair.
I opted for the latter, but the option later changed to a replacement lens, which I collected yesterday.
The results from the replacement are about the same as the original.
Images are lacking overall sharpness, and although the focus doesn't seem to go beyond infinity, out of 53 test shots I took yesterday the EXIF shows the “Focus Distance” to be 3.53 metres on every one, despite there being a variety of subjects.
I'm using a Canon 80D set to “Single Shot AF” with a single centre focus point, and I receive the focus OK indication before I fire the shutter. These are my usual settings.
I was going to do some more tests (like shooting in “Live View”) but I'm not very satisfied with the results so far and feel that the EXIF information is totally wrong.
As I said, maybe I'm making an unfair comparison, being used to Canon lenses, but I'm quite disappointed with the performance of this Sigma and I cannot understand the EXIF results..